Return of the ref cursor of procedure where the cursor is defined in the specification
HelloHere's pseudo-code
create or replace package test
as
cursor c_emp (number cv_emp_id)
is
Select emp_name emp where emp_id = cv_emp_id;
type ref_c is ref cursor;
function get_emp_name (number p_emp_id) return ref_c;
end test;
/
create or replace the test physics package
as
ref_c function get_emp_name (number p_emp_id)
is
ret_val ref_c;
Start
Open c_emp (p_emp_id);
ret_val: = c_emp;
return ret_val;
end get_emp_name;
end test;
/
Returns me "PLS-00382: expression is of the wrong type. I tried to use a strongly typed Ref cursor based on the cursor, but nothing helped.
Clearly, I understand something... and if I can't assign as ' ret_val: = c_emp "and if there is another key way it so please let me know.
Thank you
Ralph
Published by: user13024707 on May 5, 2010 04:43
user13024707 wrote:
Clearly the point of my question is being missed.
Or maybe the question is not been clearly asked. ;)
I want to set the cursor in the PACKAGE SPECIFICATION, and not in the package body. The issue of the bind variable and the string is neither here nor there because I pass parameters to the cursor.
What you ask is to use a PL/SQL cursor (defined in the specifications of the package or elsewhere) and that convert a Ref Cursor. N ° cannot be done.
PL/SQL cursors should be used in the PL/SQL code. REF CURSOR is primary used to pass back a reference to a cursor (and all queries are cursors) to a layer of application outside of PL/SQL for example .net, java, etc.. Once you start using the ref Cursor only really, you have the choice of opening it based on a (dynamic) or a fixed query string as in the examples given. You cannot open a cursor of a PL/SQL cursor definition Ref.
The difference is that when you do:
CURSOR cur_mycursor IS
SELECT ...
you declare a cursor in pl/sql definition, not actually a slider itself. The cursor itself is created when you issue an OPENING or a statement FOR etc. So a Ref Cursor (reference to a slider) cannot refer to the definition of the cursor because it is only a definition, not a cursor (i.e. it has not been sent engine sql and instantiated at that time here). Instead the Ref Cursor must reference a cursor (query), itself, and that may be presented as a string or as the query itself that is issued against the sql engine and then the ref cursor points
Thus, slider ref and PL/SQL cursors are different concepts, both designed to manage cursors in a slightly different way of programming. You cannot mix them.
Tags: Database
Similar Questions
-
Irregular data loss - function from PL/SQL returning data using Ref Cursor
Database Version: 10.2.0.4.0 (node 2 CARS)
The high-level process flow is as below:
(1) insert records in a few tables & commit the same
(2) call the pl/sql function to extract files (on certain conditions with joins with other tables) of the tables which are filled in step 1.
-> It uses the ORDER BY clause to queries inline & line number 5000 records return for each call.
Sense - if inline query is supposed to return 1,00,000 records then 20 calls to the same function. This, because the application cannot contain records beyond number.
(3) the data returned by the ref cursor is then processed by application (Tibco BW) to generate the flat file.
We are facing the problem of data loss in the file and there is no fixed model. It happens once between 200-300 calls process.
Resolution: When the problem occurs, triggering the process and in almost every time re-outbreak of the process provides required data.
Guidance on what could be the reason?
* Examples of Code for the function:
CREATE OR REPLACE FUNCTION FUNC_GET_HRCH_TOTAL_DATA)
outinstrid in NUMBERS
outinstrkey in NUMBERS
rownumberstart in NUMBERS
rownumbereend in NUMBERS
err_code OUT VARCHAR2,
err_msg OUT VARCHAR2)
RETURN PACK_TYPES. HRCH_TOTAL_CURSOR
IS
REF_HRCH_TOTAL_CURSOR PACK_TYPES. HRCH_TOTAL_CURSOR;
BEGIN
OPEN FOR REF_HRCH_TOTAL_CURSOR
SELECT *.
FROM (SELECT A.HIERARCHY_KEY, B.KEY, B.VAL_KEY, A.KEY_NEW, C.ITEMID, B.VAL_TAG, B.sort_order, ROWNUM ROWNUMBER
OF AOD_HRCH_ITEM A, AOD_HRCH_ATTR B, AOD_HRCH_ITEMS C
WHERE A.outputid = B.outputid
AND A.outputid = C.outputid AND A.outputkey = B.outputkey
AND A.outputkey = C.outputkey AND A.outputid = outinstrid
AND A.outputkey = outinstrkey AND A.ITEM_SEQ = B.ITEM_SEQ
AND A.ITEM_SEQ = C.ITEM_SEQ AND A.HIERARCHY_LEVEL_ORDER = B.SORT_ORDER
ORDER BY A.HIERARCHY_LEVEL_ORDER DESC)
WHERE ROWNUMBER < rownumbereend
AND ROWNUMBER > = rownumberstart;
RETURN REF_HRCH_TOTAL_CURSOR;
EXCEPTION
WHILE OTHERS
THEN
err_code: = x_progress | ' - ' || SQLCODE;
err_msg: = SUBSTR (SQLERRM, 1, 500);
END FUNC_GET_HRCH_TOTAL_DATA;
/
Published by: meet_sanc on February 16, 2013 10:42Your SELECT statement is almost certainly incorrect
SELECT * FROM ( SELECT A.HIERARCHY_KEY, B.KEY, B.VAL_KEY, A.KEY_NEW, C.ITEMID, B.VAL_TAG, B.sort_order,ROWNUM ROWNUMBER FROM AOD_HRCH_ITEM A, AOD_HRCH_ATTR B, AOD_HRCH_ITEMS C WHERE A.outputid = B.outputid AND A.outputid = C.outputid AND A.outputkey = B.outputkey AND A.outputkey = C.outputkey AND A.outputid = outinstrid AND A.outputkey = outinstrkey AND A.ITEM_SEQ = B.ITEM_SEQ AND A.ITEM_SEQ = C.ITEM_SEQ AND A.HIERARCHY_LEVEL_ORDER = B.SORT_ORDER ORDER BY A.HIERARCHY_LEVEL_ORDER DESC) WHERE ROWNUMBER < rownumbereend AND ROWNUMBER >= rownumberstart;Since the ORDER BY is applied after the ROWNUM is assigned in this case, your query is requested for a period of 5000 lines any arbitrariness. It would be perfectly valid for a single line to return in each of your 200 different calls or for a line to return in any of them.
You definitely want to do something in the sense of the canonical askTom wire
select * from ( select a.*, rownum rnum from ( YOUR_QUERY_GOES_HERE -- including the order by ) a where rownum <= MAX_ROWS ) where rnum >= MIN_ROWSThat said, it seems inconceivable that Tibco is unable to manage a cursor that returns more than a certain number of lines. You do a ton of work to return the data pages that are certainly not necessary. Unless you're saying that you somehow paralyzed your installation of Tibco giving him a ridiculously small amount of memory to process, something doesn't look good. A slider is just a pointer - it holds that no data - so the number of lines that you can extract a slider should have no impact on the amount of memory on the client application needs.
As others have already pointed out, your exception handler is almost certainly do more harm than good. Return the error codes and error messages as from the OUT parameters, instead of simply allowing the exception to propagate deletes a ton of useful information (such as the mistake of the stack) and makes your process much less robust.
Justin
-
PL/SQL - Call Out Ref Cursor returned by a stored procedure
Hello
I am creating a procedure where a Ref Cursor is defined as an OUT parameter, my question is how to shout that the Ref Cursor when I run for example here is how I want to call my EXEC sql command:
EXEC film_not_in_stock (2,2,vcur);
Here is the procedure:
CREATE OR REPLACE PROCEDURE film_not_in_stock (p_film_id in NUMBER, p_store_id number, vcur ON SYS_REFCURSOR)
IS
News sys_refcursor;
v_cur inventory.inventory_id%TYPE--ou is the same type of column inventory_id
v_cur sys_refcursor;
BEGIN
Heart OPEN to SELECT inventory_id
INVENTORY
WHERE film_id = p_film_id
AND store_id = p_store_id
AND inventory_id NOT IN (SELECT inventory_in_stock (inventory_id) FROM dual);
News of FETCH in v_cur;
OUTPUT WHEN heart % NOTFOUND;
END;
/
I know there are typos in the procedure, you will appreciate if you can help me to put it right.
Thank you very much!
Tonya.
In fact, based on your previous post, function inventory_in_stock returns 0 or 1. If so, there are:
CREATE OR REPLACE
PROCEDURE film_not_in_stock)
p_film_id in NUMBERS
p_store_id in NUMBERS
p_cur ON SYS_REFCURSOR
)
IS
News sys_refcursor;
v_cur inventory.inventory_id%TYPE--ou is the same type of column inventory_id
v_cur sys_refcursor;
BEGIN
OPEN p_cur
FOR
SELECT inventory_id
INVENTORY
WHERE film_id = p_film_id
AND store_id = p_store_id
AND inventory_in_stock (inventory_id) = 0;
News of FETCH in v_cur;
OUTPUT WHEN heart % NOTFOUND;
END;
/
SY.
-
Insert data from variables in the Ref Cursor
I do not know how to return data from ref cursor variables That's what I've tried so far...
At the end, to achieve this in Ref Cursor:CREATE OR REPLACE type num_obj as object ( t_number number , t_type varchar2(10) , t_desc varchar2(40) ); CREATE OR REPLACE type num_table as table of num_obj; procedure get_all_data(p_p1 in varchar2, p_rc OUT SYS_REFCURSOR) is l_dat1 number := 2; l_dat2 varchar2(10); l_dat3 varchar2(40); t_num_o num_obj; t_num_t num_table; begin for l_indx in 1..5 loop l_dat1 := l_dat1 + l_indx; if ( mod(l_dat1,2)=0) then l_dat2 := 'EVEN'; else l_dat2 := 'ODD'; end if; l_dat3 := 'Number ' || l_dat1 || ' is ' || l_dat2 || ' number'; l_num_o := num_obj (l_dat1, l_dat2, l_dat3); l_num_t := num_table(l_num_o); end loop; open p_rc for select * from table(l_num_t); close p_rc; end;
Can something like that, where I did wrong?t_number | t_type | t_desc --------------------------------------- 3 | ODD | Number 3 is ODD number 5 | ODD | Number 5 is ODD number 8 | EVEN | Number 8 is EVEN number 12 | EVEN | Number 12 is EVEN number 17 | ODD | Number 17 is ODD number
BTW. I did this with the function in pipeline, now I want to try a different method.The refcursor can not be closed in the procedure - you must return refcursor open to the appellant.
the appellant must read and then close it.
There are also some errors in the names of variables and an assignment to the collection.Try this version:
CREATE OR REPLACE PROCEDURE GET_ALL_DATA(P_P1 IN VARCHAR2, P_RC OUT SYS_REFCURSOR) IS l_dat1 number := 2; l_dat2 varchar2(10); L_DAT3 VARCHAR2(40); L_NUM_O NUM_OBJ; l_num_t num_table := num_table() ; BEGIN for l_indx in 1..5 loop l_dat1 := l_dat1 + l_indx; if ( mod(l_dat1,2)=0) then l_dat2 := 'EVEN'; else l_dat2 := 'ODD'; end if; l_dat3 := 'Number ' || l_dat1 || ' is ' || l_dat2 || ' number'; L_NUM_O := NUM_OBJ (L_DAT1, L_DAT2, L_DAT3); L_NUM_T.EXTEND; l_num_t( l_indx ) := l_num_o; end loop; OPEN P_RC FOR SELECT * FROM TABLE(L_NUM_T); END; /SQL> variable xx refcursor SQL> execute GET_ALL_DATA( '', :xx ); PL/SQL procedure successfully completed. SQL> print :xx T_NUMBER T_TYPE T_DESC ---------- ---------- ---------------------------------------- 3 ODD Number 3 is ODD number 5 ODD Number 5 is ODD number 8 EVEN Number 8 is EVEN number 12 EVEN Number 12 is EVEN number 17 ODD Number 17 is ODD number -
The stored procedure PL/SQL - t - it accept the custom Ref Cursor type?
I am not able to compile the following procedure in the HR schema comes with default oracle... I use Oracle 11g Release 11.2.0.2.0 Express edition. It gives me an error (given after the code block):
Block of code:
CREATE OR REPLACE PROCEDURE TEST_REF IS
DECLARE
TYPE REF_EMP IS REF CURSOR RETURN % ROWTYPE EMPLOYEES;
RF_EMP REF_EMP;
V_EMP EMPLOYEES % ROWTYPE;
BEGIN
DBMS_OUTPUT. ENABLE (1000000);
OPEN FOR RF_EMP
SELECT * FROM EMPLOYEES WHERE EMPLOYEE_ID > 100;
EXTRACT THE RF_EMP IN V_EMP;
DBMS_OUTPUT. PUT_LINE (V_EMP. FIRST_NAME. ' ' || V_EMP. LAST_NAME);
CLOSE RF_EMP;
EXCEPTION
WHILE OTHERS
THEN DBMS_OUTPUT. PUT_LINE (SQLERRM);
END TEST_REF;
/
Error:
Errors in PROCEDURE TEST_REF:
LINE/COL ERROR
-------- -----------------------------------------------------------------
2/1 PLS-00103: encountered the symbol "DECLARE" when waiting for an a
What follows:
Start function < an ID > pragma procedure subtype type
< between double quote delimited identifiers > delete the current cursor
There are the external language prior
The symbol 'start' is substituted for 'DECLARE' continue.
16/13 PLS-00103: encountered the symbol "end-of-file" when waiting for him
one of the following values:
(begin case declare exit end exception for goto if loop mod)
pragma raise return null select update while withGet rid of the DECLARED:
SQL> CREATE OR REPLACE PROCEDURE TEST_REF IS 2 TYPE REF_EMP IS REF CURSOR RETURN HR.EMPLOYEES%ROWTYPE; 3 RF_EMP REF_EMP; 4 V_EMP EMPLOYEES%ROWTYPE; 5 BEGIN 6 DBMS_OUTPUT.ENABLE(1000000); 7 OPEN RF_EMP FOR 8 SELECT * FROM EMPLOYEES WHERE EMPLOYEE_ID > 100; 9 FETCH RF_EMP INTO V_EMP; 10 DBMS_OUTPUT.PUT_LINE(V_EMP.FIRST_NAME || ' ' || V_EMP.LAST_NAME); 11 CLOSE RF_EMP; 12 EXCEPTION 13 WHEN OTHERS 14 THEN DBMS_OUTPUT.PUT_LINE(SQLERRM); 15 END TEST_REF; 16 / Procedure created. SQL> set serveroutput on SQL> exec TEST_REF; Donald OConnell PL/SQL procedure successfully completed. SQL>SY.
-
Best approach - whether to return Collections or the Ref Cursor?
I have the table that the column is a nested table (column address) type. Now, I want to fill the same
in a jsp page.
As his collection type I am thinking to send variable Collection to front-end. And most of java professionals
argue that the collections are the best approach.
But here, in a lot of posts, I read that collections at the front end is the worst approach and it degrades performance
and increases the load.
But java assert that even if connection fails they can always display the data as the data set is with them
How to get a set of results COLLECTION.
As ref cursor is just a pointer to the real cursor lies in the comics... they're going to make one record of the other instead and once the connection is lost... they can no longer display the data. This assertion seems
to be reasonable!
How you condemn it? and prove ref Cursor is good way?
Here's the example scenario that I have with me.
Using the Collectioncreate type t_adress is object(t_h_no varchar2(500),t_pin_code number); / create type t_address_tbl is table of t_adress; / create table r_dummy (emp_name varchar2(200),emp_id number,emp_address t_address_tbl) nested table emp_address store as emp_address_tbl; insert into r_dummy values('raghu',1,t_address_tbl(t_adress('598',500035),t_adress('600',500036))) insert into r_dummy values('raghu nadh',2,t_address_tbl(t_adress('598',500035),t_adress('600',500036)))
Using Ref CursorCreate or replace procedure p_using_col ( p_emp_id in r_dummy.emp_name%type, p_emp_dtls out t_address_tbl ) is begin Select t_adress(cl.t_h_no,cl.t_pin_code) bulk collect into p_emp_dtls from r_dummy,table(emp_address) cl where emp_id = p_emp_id; end; / set serveroutput on; declare l_emp_id r_dummy.emp_name%type := 1; l_emp_dtls t_address_tbl; begin p_using_col(l_emp_id,l_emp_dtls); for i in 1..l_emp_dtls.count loop dbms_output.put_line(l_emp_dtls(i).t_h_no); end loop; end;
ConcerningCreate or replace procedure p_using_ref ( p_emp_id in r_dummy.emp_name%type, p_emp_dtls out sys_refcursor ) is begin Open p_emp_dtls for Select cl.t_h_no,cl.t_pin_code from r_dummy,table(emp_address) cl where emp_id = p_emp_id; end; / set serveroutput on; declare l_emp_id r_dummy.emp_name%type := 1; l_emp_dtls sys_refcursor; l_h_no varchar2(500); l_pin_code number; begin p_using_ref(l_emp_id,l_emp_dtls); loop fetch l_emp_dtls into l_h_no,l_pin_code; exit when l_emp_dtls%notfound; dbms_output.put_line(l_h_no||' '||l_pin_code); end loop; close l_emp_dtls; end;
RUSSORUSSO says:
I would like to know what really happens behind the screen IE in PGA... when we return collections...A collection is a PL/SQL variable. Like all PL/SQL variables, it resides in the global area of the server process that executes PL/SQL code. This memory is part of the process the process's private memory.
If need more memory, more memory server be malloc' ed by the process.
As he is dedicated and private memory, no other process can reap the benefits of this memory in use. It is not 'ideal' - shared memory however benefits all the processes that are involved in sharing that allocated the memory. As is the case with the SGA
How long my set of data will reside in the PGA? He immediately fade after returning to the calling procedure? and how it degrades performance. Help me with a good link.
Assume that you create a collection of 10 MB. The process server malloc' ed 10 MB of server memory. The PGA has thus extended.
When your code executes the variable usage (it is out of reach of runtime), the PL/SQL engine can theoretically free up 10 MB of memory. However, it may have allocated 4 KB memory after this assignment of 10 MB. Only 4 KB is still in use. This moment results in that the process cannot shrink its allocated memory - as this free piece of 10 MB is slapbang in the middle of the used memory space.
PGA memory is 'expensive' because it's not shared memory is private, with only the current process. PGA in memory is not so easy to decline. Memory management is a complex issue and you who ceases to use a large part of the PGA memory almost never means that this memory suddenly become free and available for other processes to use.
Also, you have to ask yourself why you want to copy data from disk blocks into the SGA buffer (for SQL procedures) cache, then copy these data blocks of APG in the PGA (using a collection and extraction in bulk) and then copy this PGA memory on the network to the client process (TOAD or .net or Java or whatever).
It's a lot of moving parts - which increases the complexity, lowers the performance and scalability and ups the risk of something going wrong due to the increased complexity.
It is much simpler and much stronger, to maintain the number of moving parts to a minimum. For example to copy data directly from cache buffers of the SGA to the customer via a ref cursor
-
By the way the Ref cursor to the subprogrammes-taking islet of time to return
Hello
Version Oracle 11.2.0.1
I test the way other Ref Cursor sub programs using examples of schema scott. Please see below for the code.
Everything compiled fine.while execution of the procedure taking a lot of time.create or replace package typ_ref_cursor_pkg as Type t_ref_cursor is REF CURSOR; end typ_ref_cursor_pkg; / create or replace package emp_info_pkg is Type rec_emp is record ( name emp.ename%TYPE, sal emp.sal%Type ); l_emp_rec rec_emp; Procedure get_emp_salary(p_cursor typ_ref_cursor_pkg.t_ref_cursor); Procedure get_emp_by_dept(p_deptno emp.deptno%type); end emp_info_pkg; / create or replace package body emp_info_pkg is Procedure get_emp_salary(p_cursor typ_ref_cursor_pkg.t_ref_cursor) is begin Loop Fetch p_cursor into l_emp_rec; exit when p_cursor%NOTFOUND; DBMS_OUTPUT.PUT_LINE(l_emp_rec.name||' - '||l_emp_rec.sal); end Loop; End get_emp_salary; Procedure get_emp_by_dept(p_deptno emp.deptno%type) is v_emp typ_ref_cursor_pkg.t_ref_cursor; Begin open v_emp for select ename,sal from emp where deptno=p_deptno; LOOP get_emp_salary(v_emp); END LOOP; close v_emp; END get_emp_by_dept; END emp_info_pkg; /
what I am doing wrong? Could you point me to the right direction?execute emp_info_pkg.get_emp_by_dept(10);
Thank you
SGSg049 wrote:
Everything compiled fine.while execution of the procedure taking a lot of time.execute emp_info_pkg.get_emp_by_dept(10);How long is a long time? Is the code you have posted takes a lot of time, or is it just a case of quick test that works quickly?
Start by checking the SQL code. Get an execution plan for SQL that you run and see if you do a scan of the complete table on the table - if so an index on deptno could help.
I think you have an endless loop in get_emp_by_dept. I was unable to see a way out the manual of the WHILE loop.
-
How to run the packaged procedure with Ref Cursor
Hello.
The question may be very simple for you... but I was confused how to run
I have the following package
But I want to test (run) this procedure...CREATE OR REPLACE PACKAGE CURSPKG AS TYPE T_CURSOR IS REF CURSOR; PROCEDURE OPEN_ONE_CURSOR (N_EMPNO IN NUMBER, IO_CURSOR IN OUT T_CURSOR); END CURSPKG; / CREATE OR REPLACE PACKAGE BODY CURSPKG AS PROCEDURE OPEN_ONE_CURSOR (N_EMPNO IN NUMBER, IO_CURSOR IN OUT T_CURSOR) IS V_CURSOR T_CURSOR; BEGIN IF N_EMPNO <> 0 THEN OPEN V_CURSOR FOR SELECT EMP.EMPNO, EMP.ENAME, DEPT.DEPTNO, DEPT.DNAME FROM EMP, DEPT WHERE EMP.DEPTNO = DEPT.DEPTNO AND EMP.EMPNO = N_EMPNO; ELSE OPEN V_CURSOR FOR SELECT EMP.EMPNO, EMP.ENAME, DEPT.DEPTNO, DEPT.DNAME FROM EMP, DEPT WHERE EMP.DEPTNO = DEPT.DEPTNO; END IF; IO_CURSOR := V_CURSOR; END OPEN_ONE_CURSOR; END CURSPKG; /
But confused how to have Ref Cursor
Could you help me in this...
Thank youYou must declare a variable of type T_CURSOR and pass it to the procedure like this.
declare lOutCursor CURSPKG.T_CURSOR; begin CURSPKG.OPEN_ONE_CURSOR(, lOutCursor); end; -
Calling an Oracle stored procedure that returns a REF cursor
Hi guys,.
I'm calling an Oracle stored procedure that returns a REF CURSOR. Here is the piece of code that I'm working on:
procedure TC307_MAIN (p_program varchar2, varchar2, varchar2, result_set OUT eng_cur p_engchgno p_project) as
Start
IF (p_program = 'Navybased' and p_project = 'PROTECTOR-BUILD') THEN
result_set: = comments. Tc307_Eng_Chg_Rpt.TC307_RNZN (p_engchgno, result_set = >);
END IF;
end TC307_MAIN;
procedure TC307_RNZN (p_engchgno varchar2, result_set IN OUT eng_cur) as
Start
end TC307_RNZN;
PL/SQL code behind TC307_RNZN is big enough, that's why I've not stuck here. Basically, the second stored procedure executes a PLSQL statement and returns a result set. I need to return the result_set in the main proceedings based on nested else statement which I am still trying to build. I get a compilation... error can someone guide me with the correct method to call the second stored procedure and returning in the main proceedings.
Thank you very much.Rohan,
Try this
procedure TC307_MAIN(p_program varchar2, p_project varchar2, p_engchgno varchar2, result_set OUT eng_cur) as begin IF (p_program = 'RNZN' and p_project = 'PROTECTOR-BUILD') THEN -- This is a procedure not a function guest.Tc307_Eng_Chg_Rpt.TC307_RNZN(p_engchgno, result_set); --UR compilation error on this line* END IF; end TC307_MAIN;SS
http://DB-Oracl.blogspot.com -
How to start the view off of the ref cursor Oracle as input/output param
Hello world
We use JDev 11.1.2.3 WL 10.3.6 and Java 7.
We are at the beginning of our transition from Oracle Forms to ADF. We have a very large forms that uses many store procedures that have IN/OUT ref Cursor parameters and tables plsql. I tried to find information on best practices to achieve, but only seemed to find tutorials on SEO of the Oracle ref Cursor return functions. I hope we don't have to rewrite our code of database to work with ADF.
This is an example of a proc currently a block on a form based on directly
The ref cursor parameter is input/output to satisfy the way the form handles this type of paradigm.
ADF we want I hope to reuse these procs existing (without the need to wrap/overload them) on the basis of the display objects.
Example:
/ * my record type which houses the information I want to go back * /.
TYPE rec_hist_vacpac_status IS RECORD)
rec_order NUMBER (5),
rec_rownum NUMBER (5),
return_column SAM_VACPAC.vacpac_status%TYPE,
rec_login_id SAM_VACPAC.ins_user%TYPE,
status_date SAM_VACPAC.status_date%TYPE
);
/ * Sets the ref cursor type * /.
TYPE lcur_hist_vacpac_status IS REF CURSOR;
/ * This is a procedure that would take some info link go / return
Return the ref cursor of this information as an in / out * /.
PROCEDURE prc_myinfo_refcur)
pnum_identify_seq_id in NUMBERS
pcur_myinfo IN OUT lcur_hist_vacpac_status);
Can anyone point me in the right direction on documentation on this?
Thank you!
Hi Cemerson:
See this example:
- 1. create a TYPE as an object
CREATE OR REPLACE
TYPE GOTYOB_EQUI
AS AN OBJECT
(
CDELEM VARCHAR2 (50).
TIELEM VARCHAR2 (2)
);
- 2. create a TABLE TYPE AS
CREATE OR REPLACE
TYPE GOTYTA_EQUI
AS THE GOTYOB_EQUI TABLE;
- 3 create a function, it returns the TYPE of the TABLE
FUNCTION fn_equiposarriba)
pa_cdelem IN VARCHAR2,
pa_nucomp in NUMBERS
pa_anperi in NUMBERS
pa_meperi in NUMBERS
)
Gotyta_equi RETURN PIPELINED IS
CURSOR trae_equimani (va_cdelem VARCHAR2) IS
SELECT cdelem, tielem, cdelempadr,
(SELECT cdequi
Of evm_alim
WHERE anperi = eq.anperi
AND meperi = eq.meperi
AND nucomp = eq.nucomp
AND cdalim = eq.cdalim) cdalim
Of evm_equimani eq
WHERE anperi = pa_anperi
AND meperi = pa_meperi
AND nucomp = pa_nucomp
AND cdelem = va_cdelem
AND cdelempadr <> cdelem
AND tielem <> 'A ';
equimani trae_equimani % ROWTYPE;
va_cdalim VARCHAR2 (100);
BEGIN
-Loading los equipos aguas arriba
WHILE equimani.cdelempadr IS NOT NULL LOOP
OPEN trae_equimani (equimani.cdelempadr);
equimani: = NULL;
SEEK trae_equimani INTO equimani;
CLOSE Trae_equimani;
IF equimani.cdelem IS NOT NULL THEN
PIPE ROW (gotyob_equi (equimani.cdelem, equimani.tielem));
END IF;
END LOOP;
RETURN;
END;
- 4 SQL Query with the help of the function... you can use this SQL in a display object
SELECT
*
Of
TABLE (gopq_eventos.fn_equiposarriba (' F-SCZ-043-103', '))
1,
2013,
6
)
)
Best regards, Marcelo
-
Fetch the Ref Cursor several times
create or replace PROCEDURE refcursor1 AS TYPE r_cursor IS REF CURSOR; rcv_emp r_cursor; TYPE rec_emp IS record ( empno NUMBER, ename VARCHAR2(20 CHAR), deptno number ); recv_emp rec_emp; recv_emp2 rec_emp; ------------------------------------------------------- PROCEDURE printemployeedetails AS BEGIN loop fetch rcv_emp INTO recv_emp; exit WHEN rcv_emp%notfound; dbms_output.put_line(recv_emp.empno||'-'||recv_emp.ename||'-'||recv_emp.deptno); END loop; END; ------------------------------------------------------- PROCEDURE printemployeedetails2(p_emp r_cursor) IS BEGIN loop fetch p_emp INTO recv_emp2; exit WHEN p_emp%notfound; dbms_output.put_line(recv_emp2.empno||'-'||recv_emp2.ename||'-'||recv_emp2.deptno); end loop; END; ------------------------------------------------------- BEGIN FOR i IN (SELECT deptno FROM dept order by deptno) loop OPEN rcv_emp FOR SELECT empno,ename,deptno FROM emp WHERE deptno=i.deptno; dbms_output.put_line(i.deptno); dbms_output.put_line('--------------------'); dbms_output.put_line('calling printemployeedetails'); printemployeedetails; dbms_output.put_line(' '); dbms_output.put_line('calling printemployeedetails2'); dbms_output.put_line(' '); printemployeedetails2(rcv_emp); CLOSE rcv_emp; END loop; end;Output:
10 -------------------- calling printemployeedetails 7839-KING-10 7782-CLARK-10 7934-MILLER-10 calling printemployeedetails2 20 -------------------- calling printemployeedetails 7566-JONES-20 7788-SCOTT-20 7902-FORD-20 7369-SMITH-20 7876-ADAMS-20 calling printemployeedetails2 30 -------------------- calling printemployeedetails 7698-BLAKE-30 7499-ALLEN-30 7521-WARD-30 7654-MARTIN-30 7844-TURNER-30 7900-JAMES-30 calling printemployeedetails2 40 -------------------- calling printemployeedetails calling printemployeedetails2
Hi all
If I open a cursor once can I collect the elements of a cursor n times as above? I see one of these procedures to print the details, but not both.
Wonder why that I'm passing same ref cursor to a second procedure.
It doesn't throw me an error indicating that the elements of the ref cursor is already read.
Thank you.
Your condition is not clear. Cursor is a pointer. He points to the result set of your query. At the time wherever you collect once, it advances the pointer to the next line and so on. I wonder if the pointer can return to the previous line once you recovered.
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How to create a REF CURSOR from the static values?
We call for a program of power supply (from PL/SQL) that returns a string with data (separated by {}), lines like this:
Our PL/SQL procedure should exit a REF CURSOR with lines like this:{packetId:236,packetName:ADSL-320K-1M-3G}, {packetId:257,packetName:ADSL-1024K-1M-20G}, {packetId:232,packetName:ADSL-INTERANET-UNLIMITED}, {packetId:234,packetName:ADSL-512K-3M-16G}, .................. ......... .....
How do this pls?236, ADSL-320K-1M-3G 257, ADSL-1024K-1M-20G 232, ADSL-INTERANET-UNLIMITED 234, ADSL-512K-3M-16G ......... ......
Published by: Channa on May 18, 2012 02:30Hello
Channa wrote:
It's the first gives ORA-00942: table or view does not exist for the FROM t . When I can replace the t split_t , I get ORA-32031: illegal reference to a query with the term name.What is at stake here pls?
Use the name of your real of the table where I used t.
If you don't have a table, just a string, then select the double. -
The use of bind variables in dynamic query created for Ref Cursor
Hello
I'm in a situation where there is a Ref cursor to which the query is built execution based on a loop. This is why the number of links would be known until the program runs.
The application is currently using literals instead of bind variables.
code snippet of the above is
strSql: = "select * from emp where 1 = 1 and ().
loop cursor1
If cond is true then
strSql = strSql | "ename = ' |" Cursor1.ColumnName;
end loop;
Open cursor2 for strSql;
How to use links in the example above.sb92075 wrote:
user13019948 wrote:
HelloHere is the code I have my trying to change literal-based link to the base.
What do you mean by "based bind?
who, what, how determines the values to be 'bound '?
He's referring to the coding style. He is currently using concatenated literal, and the goal is to change it to use the bindings.
If I understand this it is known as method 4 dynamic SQL and requires DBMS_SQL. There are examples autour but they vary according to the type of statement being generated - SELECT statements require column lists to be parsed, unlike the INSERT/UPDATE/DELETE.
This came up recently on my current project and I hit a demo. Here a table of names and values accepted procedure and had to build these in a single WHERE clause along the lines of
AND t_names(i) = t_values(i)for an undetermined number of elements in the array. For this demonstration, I used a table that we called "attribute" (don't ask) which has columns including 'attribute_id' and 'name', and I need to build a query along the lines of
select description from attribute where attribute_id = :b1 and name = :b2by the way '1012' and 'ISIN' respectively. (I use a table better and after a CREATE statement for her but I have to rush right now, sorry).
declare k_sql_base constant varchar2(500) := 'select description from attribute'; t_names constant varchar2_t := varchar2_t('attribute_id', 'name'); t_values constant varchar2_t := varchar2_t('1012', 'ISIN'); l_sql varchar2(500) := k_sql_base; l_rows_fetched integer := 0; l_value varchar2(4000); l_cursor_handle integer; begin -- Construct the SQL statement with column names and bind variables e.g. -- 'select description from mars.attribute where attribute_id = :b1 and name = :b2' for i in t_names.first .. t_names.last loop l_sql := l_sql || case i when t_names.first then ' where ' else ' and ' end || t_names(i) || ' = :b' || i; end loop; dbms_output.put_line('SQL statment = ' || l_sql); -- Parse the statement we built above (the remaining steps require a parsed cursor): l_cursor_handle := dbms_sql.open_cursor; dbms_sql.parse(l_cursor_handle, l_sql, dbms_sql.native); -- Associate the 1st column of output with variable l_value - required for SELECT statements: -- (actually the 3rd param here 'column' seems to be only used to get a datatype, in this case we want a string - -- dbms_sql.column_value actually extracts the value into a specified variable, which can be different. -- All examples in the documentation pass a local variable without further comment, so not entirely clear what this does other than set the output datatype.) dbms_sql.define_column(l_cursor_handle, 1, l_value, 4000); -- Now go through values array binding actual values to :bn variables in the cursor (similar to USING clause of EXECUTE IMMEDIATE) for i in t_values.first .. t_values.last loop dbms_sql.bind_variable(l_cursor_handle, ':b'||i, t_values(i)); dbms_output.put_line('Bound :b'||i || ' as ' || t_values(i)); end loop; -- Open the cursor and fetch the result (no loop here because we are expecting a single-row result): l_rows_fetched := dbms_sql.execute_and_fetch(l_cursor_handle); -- 'Returns value of the cursor element for a given position in a cursor' -- Copy the value of column 1 to variable l_value (has to match -- dbms_sql.column_value(l_cursor_handle, 1, l_value); dbms_sql.column_value(l_cursor_handle, 1, l_value); dbms_output.put_line('Result = ''' || l_value || ''''); dbms_sql.close_cursor(l_cursor_handle); end;Hope that helps...
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Need the difference between strong Ref Cursor and weak Ref Cursor examples
Oracle 9.2
It would be great if someone can help understand the differences between
1 Strong Ref Cursors(return type)
and
2. weak Ref Cursor (no return type)
What I read is weak ref Cursor as sys_refcursor is better to use the ref Cursor, because in the case of slider strong Ref object type that will be returned must be declared in advance. It dosent make sense to me?
I start with the examples would be appreciate for advice
Strong Ref Cursor
create the package str_pack
is
type sref_type is ref cursor return emp % rowtype;
SVAR sref_type;
end str_pack;
Create procedure st_proc (eid in number, c1 on str_pack.sref_type)
is
Start
Open c1 to select empno, ename, sal from emp where empno = eid;
end;
declare
str_pack.sref_type C1;
type rec is RECORD (eid, ename varchar2 number (20), number of sal);
SheikYerbouti rec;
Start
st_proc(10,C1);
loop
When exit c1% notfound;
Fetch c1 into SheikYerbouti.
end loop;
Close c1;
end;
There could be errors in the above example but its basically to get a better understanding.
For weak Ref Cursor
procedure of the child
Create procedure child_proc (in number, c1 on sys_refcursor eid)
is
Start
Open c1 to select empno, ename, sal from emp where empno = eid;
end;
parent process
Create procedure parent_proc (recnum varchar2)
is
p_retcur sys_refcursor;
emp_row emp % rowtype;
Start
child_proc (eid, p_retcur);
loop
extract the p_retcur in emp_row;
dbms_output.put_line(emp_row.empno ||) e '|| emp_row. Ename | "wins". emp_row. SAL);
end loop;
end parent_proc;
Concerning
@Hello
the fundamental difference is to do with the compiling and linking of runtime type that occurs.
The he should explain a lot more detail than I could ever!
http://asktom.Oracle.com/pls/asktom/f?p=100:11:0:P11_QUESTION_ID:1640161160708P;
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How to call a stored procedure with a REF CURSOR output parameter
I'm looking forward to example calling a function/stored procedure with a REF CURSOR output parameter and get the result.
In other words, I have a stored function/procedure that runs a SELECT statement using the OCI library and then he could get the values of each row and each column.
I put a code snippet, it have only the main thing to call a simple stored procedure and to print the name of each column of the cursor, but I couldn t to print out values in the table that calls the stored procedure.
I understand that the next step is to call an OCIStmtFetch.
How to associate the slider with the OCIStmtFetch?
If you need more information, just tell me.
I use ANSI C with HP - UX (HP - UX C) operating system and Oracle 10 g.
Kind regards.
Antonio Garcia
/ * callOracleSP * /.
#include < stdio.h >
#include < string.h >
#include < oci.h >
#include < stdlib.h > to
char * pConnectChar = "Server";
char * pUsernameChar = "user";
char * pPasswordChar = "passwd";
char * sqlCharArray1 = "BEGIN SP_GETCITIES (:,: c); END; « ;
int retval;
UB4 parmcnt = 0;
UB4 pos2 = 0;
text * pcoln [20];
UB4 namelen [20];
char state_key [5];
OCIStmt * pOciStatement;
OCIStmt * pOciStatCursor;
OCIError * pOciError;
OCIEnv * pOciEnviron;
OCIServer * pOciServer;
OCISession * pOciSession;
OCISvcCtx * pOciServiceContext;
OCIBind * pOciBind [500];
OCIParam * pOciParam;
int main()
{
retval = OCIEnvCreate (& pOciEnviron, OCI_DEFAULT, NULL, NULL, NULL, NULL, 0, NULL);
retval = OCIEnvInit (& pOciEnviron, OCI_DEFAULT, 0, NULL);
retval = OCIHandleAlloc (pOciEnviron, (void *) & pOciError, OCI_HTYPE_ERROR, 0, NULL);
retval = OCIHandleAlloc (pOciEnviron, (void *) & pOciServiceContext, OCI_HTYPE_SVCCTX, 0, NULL);
retval = OCIHandleAlloc (pOciEnviron, (void *) & pOciStatement, OCI_HTYPE_STMT, 0, NULL);
retval = OCILogon (pOciEnviron, pOciError, & pOciServiceContext,(unsigned char *) pUsernameChar,
strlen (pUsernameChar), (unsigned char *) pPasswordChar, strlen (pPasswordChar).
(unsigned char *) pConnectChar, strlen (pConnectChar));
printf ("retval=%d\n",retval OCILogon);
retval = OCIStmtPrepare (pOciStatement, pOciError, (unsigned char *) sqlCharArray1, strlen (sqlCharArray1),)
OCI_NTV_SYNTAX, OCI_DEFAULT);
printf ("StmtPrepare retval=%d\n",retval);
retval = OCIHandleAlloc (pOciEnviron, (void *) & pOciStatCursor, OCI_HTYPE_STMT, 0, NULL);
retval = 1 OCIBindByPos(pOciStatement,&pOciBind[0], pOciError, (ub4), (void *) & state_key,)
((sb4) sizeof (state_key), SQLT_STR, (void *) 0, (ub2 *) 0, (ub2 *) 0, (ub4) 0, (ub4 *) 0, OCI_DEFAULT (ub4));
printf ("BindByPos OCI_HTYPE_STMT retval=%d\n",retval);
retval = OCIBindByPos(pOciStatement,&pOciBind[1], pOciError, (ub4) 2, (void *) & pOciStatCursor,)
((sb4) 0, SQLT_RSET, (void *) 0, (ub2 *) 0, (ub2 *) 0, (ub4) 0, (ub4 *) 0, OCI_DEFAULT (ub4));
printf ("BindByPos OCI_HTYPE_STMT retval=%d\n",retval);
strcpy (state_key, 'ca');
retval = OCIStmtExecute (pOciServiceContext, pOciStatement, pOciError, (ub4) 1, (ub4) 0,)
(OCISnapshot *) NULL, (OCISnapshot *) NULL, OCI_DEFAULT (ub4));
printf ("StmtExecute retval=%d\n",retval);
/ * How to get the values of the cursor? */
/ * Number of parameters of the cursor * /.
OCIAttrGet ((void *) pOciStatCursor, OCI_HTYPE_STMT (ub4), (void *) & parmcnt,(ub4 *) 0,)
(ub4) (OCI_ATTR_PARAM_COUNT, pOciError);
printf ("\nNumber of the slider settings = %d\n",parmcnt);
for (int pos = 1; pos < = (int) parmcnt; pos ++)
{
OCIAttrGet ((void *) pOciStatCursor, OCI_HTYPE_STMT (ub4), (void *) & pos2,(ub4 *) 0,)
(ub4) (OCI_ATTR_CURRENT_POSITION, pOciError);
retval = OCIParamGet ((void *) pOciStatCursor, OCI_HTYPE_STMT (ub4), pOciError, (void *) & pOciParam,)
POS (ub4));
OCIAttrGet pOciParam, (ub4) ((void*) OCI_DTYPE_PARAM,(void*) & pcoln [pos - 1],(ub4 *) & namelen [pos-1],)
(ub4) OCI_ATTR_NAME,(OCIError *) pOciError);
}
for (int i = 1; i < = (int) parmcnt; i ++)
printf ("%i\tNAME = % column. ("* s\n", i, namelen [i-1], pcoln [i-1]);
return 0;
}
This is the script that create the table, insert records and create the stored procedure
CREATE TABLE CITIES)
STATE_CODE VARCHAR2 (2) NULL,
CITY_CODE NUMBER (15.5) NULL,
CITY_NAME VARCHAR2 (30) NULL
)
/
INSERT INTO CITIES (STATE_CODE, CITY_CODE, CITY_NAME)
VALUES ('CA', 30, 'SAN DIEGO')
/
INSERT INTO CITIES (STATE_CODE, CITY_CODE, CITY_NAME)
VALUES ('CA', 40 'SACRAMENTO')
/
INSERT INTO CITIES (STATE_CODE, CITY_CODE, CITY_NAME)
VALUES ('FL', 10, 'MIAMI')
/
INSERT INTO CITIES (STATE_CODE, CITY_CODE, CITY_NAME)
VALUES ('FL', 20, 'ORLANDO')
/
INSERT INTO CITIES (STATE_CODE, CITY_CODE, CITY_NAME)
VALUES ('NEW YORK', 10, 'NEW YORK')
/
INSERT INTO CITIES (STATE_CODE, CITY_CODE, CITY_NAME)
VALUES ('NEW YORK', 20, 'ALBANY')
/
INSERT INTO CITIES (STATE_CODE, CITY_CODE, CITY_NAME)
VALUES ('CA', 10, 'LOS ANGELES')
/
INSERT INTO CITIES (STATE_CODE, CITY_CODE, CITY_NAME)
VALUES ('CA', 20, 'SAN FRANCISCO')
/
CREATE or REPLACE PACKAGE globalPkg AUTHID CURRENT_USER AS
/ * The following is specific global variables T/SQL. */
TYPE RCT1 IS REF CURSOR; / * new cursor low definition * /.
END globalPkg;
/
CREATE OR REPLACE PROCEDURE SP_ADDCITY)
P_STATE_CODE IN VARCHAR,
P_CITY_CODE NUMBER,
P_CITY_NAME IN VARCHAR2,
P_RETURN IN NUMBERS)
AS
StoO_error INTEGER;
StoO_selcnt INTEGER;
StoO_rowcnt INTEGER;
StoO_errmsg VARCHAR2 (255);
BEGIN
StoO_rowcnt: = 0;
StoO_error: = 0;
StoO_selcnt: = 0;
P_RETURN: = 0;
INSERT INTO CITIES (STATE_CODE, CITY_CODE, CITY_NAME)
VALUES (P_STATE_CODE, P_CITY_CODE, P_CITY_NAME);
StoO_rowcnt: = number of LINES SQL %;
EXCEPTION
WHEN TOO_MANY_ROWS THEN
StoO_rowcnt: = 2;
WHILE OTHERS THEN
StoO_rowcnt: = 0;
StoO_selcnt: = 0;
StoO_error: = SQLCODE;
StoO_errmsg: = SQLERRM;
IF StoO_error! = 0 THEN
BEGIN
P_RETURN: = 1;
RETURN;
END;
END IF;
END;
/
CREATE OR REPLACE PROCEDURE SP_GETCITIES)
STATE_KEY IN VARCHAR,
RC1 IN OUT globalPkg.RCT1)
AS
StoO_error INTEGER;
StoO_selcnt INTEGER;
StoO_rowcnt INTEGER;
StoO_errmsg VARCHAR2 (255);
BEGIN
StoO_rowcnt: = 0;
StoO_error: = 0;
StoO_selcnt: = 0;
OPEN FOR RC1
SELECT STATE_CODE, CITY_CODE, FRANCISCO
CITIES
WHERE STATE_CODE = STATE_KEY
ORDER BY CITY_CODE;
StoO_rowcnt: = number of LINES SQL %;
EXCEPTION
WHILE OTHERS THEN
StoO_rowcnt: = 0;
StoO_error: = SQLCODE;
StoO_errmsg: = SQLERRM;
END;
/Hi Antonio,.
I see this:
c_buf=(ub1 **)calloc(sizeof(ub1 *),3); ... rc=OCIDefineByPos(pOciStatCursor,&pdef,(OCIError *)pOciError,pos,c_buf[pos-1],size+1,(ub2)type,(dvoid *)c_indp[pos-1],(ub2 *)0,(ub2 *)0,OCI_DEFAULT);That I don't understand. You allocate space for 3 pointers ub1 but I don't see where these pointers are then initialized to point to where the data is to be stored.
I do not read correctly?
Sorry for posting code long, but here is an example of code that I have. It is much more 'code' for your code, but maybe that will be enough...
NOTE: This is just the code example and not rigorous. For example, I don't check the memory, allocations etc in this code!
Kind regards
Mark
#ifdef WIN32 #define _CRT_SECURE_NO_DEPRECATE 1 #endif #include#include #include #include void checkerr(sword status, OCIError *errhp); int main(int argc, char *argv[]) { OCIEnv *envhp = NULL; /* OCI Environment handle */ OCIError *errhp = NULL; /* OCI Error handle */ OCISvcCtx *svchp = NULL; /* OCI Service Context handle */ OCIServer *srvhp = NULL; /* OCI Server handle */ OCISession *usrhp = NULL; /* OCI User Session handle */ OCIStmt *stmtp = NULL; /* OCI Statement handle */ OCIStmt *cursr = NULL; /* OCI Statement handle */ OCIParam *prmp1 = NULL; /* OCI Parameter handle */ OCIParam *prmp2 = NULL; /* OCI Parameter handle */ OCIParam *prmp3 = NULL; /* OCI Parameter handle */ OCIDefine *defp1 = NULL; /* OCI Define handle */ OCIDefine *defp2 = NULL; /* OCI Define handle */ OCIDefine *defp3 = NULL; /* OCI Define handle */ OCIBind *bndp1 = NULL; /* OCI Bind handle */ OCIBind *bndp2 = NULL; /* OCI Bind handle */ OCIBind *bndp3 = NULL; /* OCI Bind handle */ /* used to hold column width */ ub2 col_width; /* used to set the prefetch count */ ub4 prefetch_count = 32; /* will hold output from database */ oratext *pEmpId = NULL; oratext *pFirstName = NULL; oratext *pLastName = NULL; /* the anonymous block to execute */ /* this opens a ref cursor */ oratext *sqlstmt = "begin " \ " open :1 for " \ " select to_char(employee_id), " \ " first_name, " \ " last_name " \ " from hr.employees " \ " order by last_name, " \ " first_name; " \ "end;"; /* used to hold the results of each OCI call */ sword result = 0; /* Initialize and create a default environment */ result = OCIEnvCreate(&envhp, OCI_DEFAULT, (dvoid *) 0, 0, 0, 0, (size_t) 0, (dvoid **) 0); /* allocate an error handle */ result = OCIHandleAlloc((dvoid *) envhp, (dvoid **) &errhp, OCI_HTYPE_ERROR, 0, (dvoid **) 0); /* allocate a service context handle */ result = OCIHandleAlloc((dvoid *) envhp, (dvoid **) &svchp, OCI_HTYPE_SVCCTX, 0, (dvoid **) 0); /* allocate a server handle */ result = OCIHandleAlloc((dvoid *) envhp, (dvoid **) &srvhp, OCI_HTYPE_SERVER, 0, (dvoid **) 0); /* allocate a user session handle */ result = OCIHandleAlloc((dvoid *) envhp, (dvoid **) &usrhp, OCI_HTYPE_SESSION, 0, (dvoid **) 0); /* create a server context using the "ORADEMO" database */ result = OCIServerAttach(srvhp, errhp, "ORADEMO", (ub4) strlen("ORADEMO"), OCI_DEFAULT); /* set the server attribute in the service context handle */ result = OCIAttrSet((dvoid *) svchp, OCI_HTYPE_SVCCTX, (dvoid *) srvhp, (ub4) 0, OCI_ATTR_SERVER, errhp); /* open the session with the database */ /* using external authentication */ result = OCISessionBegin(svchp, errhp, usrhp, OCI_CRED_EXT, OCI_DEFAULT); /* set the user session attribute in the service context handle */ result = OCIAttrSet((dvoid *) svchp, OCI_HTYPE_SVCCTX, (dvoid *) usrhp, (ub4) 0, OCI_ATTR_SESSION, errhp); /* allocate the statement handle */ result = OCIHandleAlloc((dvoid *) envhp, (dvoid **) &stmtp, OCI_HTYPE_STMT, 0, (dvoid **) 0); /* prepare the statement for execution */ result = OCIStmtPrepare(stmtp, errhp, sqlstmt, (ub4) strlen((char *) sqlstmt), OCI_NTV_SYNTAX, OCI_DEFAULT); /* allocate the handle for the ref cursor */ result = OCIHandleAlloc((dvoid *) envhp, (void **) &cursr, OCI_HTYPE_STMT, 0, NULL); /* bind the ref cursor parameter */ result = OCIBindByPos(stmtp, &bndp1, errhp, 1, &cursr, 0, SQLT_RSET, NULL, 0, NULL, 0, 0, OCI_DEFAULT); /* execute the statement */ result = OCIStmtExecute(svchp, stmtp, errhp, 1, 0, NULL, NULL, OCI_DEFAULT); /* get parameter descriptor for first column */ result = OCIParamGet((dvoid *) cursr, OCI_HTYPE_STMT, errhp, (dvoid **) &prmp1, (ub4) 1); /* get parameter descriptor for second column */ result = OCIParamGet((dvoid *) cursr, OCI_HTYPE_STMT, errhp, (dvoid **) &prmp2, (ub4) 2); /* get parameter descriptor for third column */ result = OCIParamGet((dvoid *) cursr, OCI_HTYPE_STMT, errhp, (dvoid **) &prmp3, (ub4) 3); /* get the first column width in characters */ result = OCIAttrGet((dvoid*) prmp1, (ub4) OCI_DTYPE_PARAM, (dvoid*) &col_width, (ub4 *) 0, (ub4) OCI_ATTR_DATA_SIZE, errhp); /* allocate memory to hold the result */ pEmpId = (oratext *) malloc(sizeof(oratext) * (col_width + 1)); /* define the first column in the results */ result = OCIDefineByPos(cursr, &defp1, errhp, 1, (dvoid *) pEmpId, (sword) col_width + 1, SQLT_STR, (dvoid *) NULL, (ub2 *) 0, (ub2 *) 0, OCI_DEFAULT); /* get the second column width in characters */ result = OCIAttrGet((dvoid*) prmp2, (ub4) OCI_DTYPE_PARAM, (dvoid*) &col_width, (ub4 *) 0, (ub4) OCI_ATTR_DATA_SIZE, errhp); /* allocate memory to hold the result */ pFirstName = (oratext *) malloc(sizeof(oratext) * (col_width + 1)); /* define the second column in the results */ result = OCIDefineByPos(cursr, &defp2, errhp, 2, (dvoid *) pFirstName, (sword) col_width + 1, SQLT_STR, (dvoid *) NULL, (ub2 *) 0, (ub2 *) 0, OCI_DEFAULT); /* get the third column width in characters */ result = OCIAttrGet((dvoid*) prmp3, (ub4) OCI_DTYPE_PARAM, (dvoid*) &col_width, (ub4 *) 0, (ub4) OCI_ATTR_DATA_SIZE, errhp); /* allocate memory to hold the result */ pLastName = (oratext *) malloc(sizeof(oratext) * (col_width + 1)); /* define the third column in the results */ result = OCIDefineByPos(cursr, &defp3, errhp, 3, (dvoid *) pLastName, (sword) col_width + 1, SQLT_STR, (dvoid *) NULL, (ub2 *) 0, (ub2 *) 0, OCI_DEFAULT); /* loop through and print the results */ while ((result = OCIStmtFetch(cursr, errhp, (ub4) 1, (ub2) OCI_FETCH_NEXT, (ub4) OCI_DEFAULT)) == OCI_SUCCESS) { printf("Employee ID: %s\n", pEmpId); printf(" First Name: %s\n", pFirstName); printf(" Last Name: %s\n\n", pLastName); } /* free allocated memory */ free(pEmpId); free(pFirstName); free(pLastName); pEmpId = NULL; pFirstName = NULL; pLastName = NULL; /* terminate the session with the database */ result = OCISessionEnd(svchp, errhp, usrhp, OCI_DEFAULT); /* detach from the server */ result = OCIServerDetach(srvhp, errhp, OCI_DEFAULT); /* deallocate the environment handle */ /* OCI will deallocate the child handles */ result = OCIHandleFree((dvoid *) envhp, OCI_HTYPE_ENV); return OCI_SUCCESS; } void checkerr(sword status, OCIError *errhp) { oratext errbuf[512]; sb4 errcode = 0; switch (status) { case OCI_SUCCESS: break; case OCI_ERROR: case OCI_SUCCESS_WITH_INFO: (void) OCIErrorGet((dvoid *) errhp, (ub4) 1, (oratext *) NULL, &errcode, errbuf, (ub4) sizeof(errbuf), OCI_HTYPE_ERROR); (void) printf("Error: %.*s\n", sizeof(errbuf), errbuf); break; case OCI_NEED_DATA: (void) printf("Error - OCI_NEED_DATA\n"); break; case OCI_NO_DATA: (void) printf("Error - OCI_NO_DATA\n"); break; case OCI_INVALID_HANDLE: (void) printf("Error - OCI_INVALID_HANDLE\n"); break; case OCI_STILL_EXECUTING: (void) printf("Error - OCI_STILL_EXECUTING\n"); break; case OCI_CONTINUE: (void) printf("Error - OCI_CONTINUE\n"); break; default: break; } }
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Connect two monitors to my laptop HP
I have a laptop dv7 HP Envy. Windows 8.1 Inter Core i 7-3630QM [email protected] GHz 16 GB of Ram 64 bit 1 TB HD Intel HD Graphics NVIDIA GeForce GT 635 m 2 monitors: HP w2207h W? : 1 - HDMI. 1 VGA & 1-USBin. 2 - Out USB Monitor 27 '' LCD HNC HDMI 1 HDMI 2 VG
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I'm sure I have a BIOS virus and I can't get rid of it. It completely slows down my internet after reformatting clean. I am connected directly to the modem and it is NOT my connection. I got a virus earlier and did a reformat, but looks like it's s
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Problems of blackBerry Smartphones with the BBkey (also known as the menu button)
Sometimes when I'm in an application and want to click on one of the list of the menu items (for example, delete), when I click on the menu button, which appears are some of the icons on the home page. (I'm really tired of looking at this little Pen