2 running, 1 inside and 1 sql external, dynamic queries using loops and ref Cursor

Hi all

I'm under Oracle 10.2.0.2. I'm currently building dynamic sql using external and internal queries ref Cursor. Queries make use of user selected lists of ID, which is stored in a table in memory at run time. My example is as follows. From a list of book_publication_id on a web page, the user selects several books. The same user selects then several maps from a list of map_publication_id on the same web page. A book contains several maps and some of these cards will appear in more than one book (aka many many relationships).

This should then ask the following output to a new web page:

Outer loop:  Display book details for book_publication_id 230
  Inner loop:  Display 1st map details for map_publication_id 340
  Inner loop:  Display 2nd map details for map_publication_id 346
  Inner loop:  Display 3rd map details for map_publication_id 350
Outer loop:  Display book details for book_publication_id 240
  Inner loop:  Display 1st map details for map_publication_id 346
  Inner loop:  Display 2nd map details for map_publication_id 375
Outer loop:  Display book details for id 255
and so on.

In the example above, the outer loop displays the details of the book for book_publication_id 230 and the inner loop displays all the users selected the maps in book_publication_id 230. Then, it moves on the details of the book for book_publication_id 240 and done the same thing again. Similar in some ways to how break would work in SQL * Plus, even if the table is built like an HTML, the book details must be on a separate line for the card details. However I don't know how I would want it to work.

So far, using loops, I could not show all the details of card for each different book_publication_id, after the details of the book for only 1 book_publication_id are displayed each time. If a loop in a loop. I hope that makes sense. I think this is my internal request that it be built differently. My code for this part of the program, which is currently wrong, is as follows:

--Global variable section contains:
var_user_chosen_map_list_ids VARCHAR2(32767);
var_details VARCHAR2(32767);
......
PROCEDURE PROCMAPSEARCH (par_user_chosen_map_list_ids PKG_ARR_MAPS.ARR_MAP_LIST)
IS
BEGIN
FOR rec_user_chosen_map_list_ids IN 1 .. par_user_chosen_map_list_ids.count
LOOP
   var_user_chosen_map_list_ids := var_user_chosen_map_list_ids || 
   '''' || 
   par_user_chosen_map_list_ids(rec_user_chosen_map_list_ids) || 
   ''',' ;
END LOOP;
 var_user_chosen_map_list_ids := substr(var_user_chosen_map_list_ids,
                                        1, 
                                        length(var_user_chosen_map_list_ids)-1);
var_details := FUNCMAPDATAFIND (var_user_chosen_map_list_ids);
htp.print(var_details);
END PROCMAPSEARCH;
FUNCTION FUNCMAPDETAILS (par_user_chosen_map_list_ids IN VARCHAR2(32767)
RETURN VARCHAR2
AS
TYPE cur_type_map IS REF CURSOR;
cur_book_search cur_type_map;
var_book_date NUMBER(4);
var_book_title VARCHAR2(32767);
cur_map_search cur_type_map;
var_map_date NUMBER(4);
var_map_title VARCHAR2(32767);
begin:
OPEN cur_book_search FOR
'SELECT BI.book_date,
        BT.book_title
 FROM   BOOK_INFO BI,
        BOOK_TITLE BT,
        TABLE (sys.dbms_debug_vc2coll(' || par_user_chosen_book_list_ids || ')) BL_1
 WHERE BI.book_title_id = BT.book_title_id
 AND BI.book_publication_id = BL_1.column_value';
OPEN cur_map_search FOR
'SELECT MI.map_date,
       MT.map_title
FROM map_info MI,
     map_title MT,
     TABLE (sys.dbms_debug_vc2coll(' || par_user_chosen_book_list_ids || ')) BL_2
     TABLE (sys.dbms_debug_vc2coll(' || par_user_chosen_map_list_ids || ')) ML
WHERE MI.map_title_id = MT.map_title_id
AND BI.book_publication_id = BL_2.column_value
AND BI.book_publication_id = MI.pub_publication_id
AND MI.map_publication_id = ML.column_value';
LOOP
LOOP
FETCH cur_map_compare INTO
var_book_date,
var_book_title;
var_details
var_details := var_details || 'Book date: '||
                    var_book_date ||
                    'Book title: ' ||
                    var_book_title;
FETCH cur_map_compare INTO
var_map_date,
var_map_title;
var_details := var_details || 'Map date: '||
                    var_map_date ||
                    'Map title: ' ||
                    var_map_title
EXIT WHEN cur_book_compare%NOTFOUND;
END LOOP;
EXIT WHEN cur_map_compare%NOTFOUND;
END LOOP;
RETURN var_details;
END FUNCMAPDETAILS;

If anyone has any ideas or suggestions, I would be grateful. It is an extension of my previous code, I posted a question recently. As I am working and learning a step at a time, I left this idea in my previous question, that I had to make sure I knew that first.

Kind regards

Tim

Using dynamic SQL

declare
  dd sys_refcursor;
  ee sys_refcursor;
  d dept%rowtype ;
  e emp%rowtype ;
begin
open dd for 'select * from dept' ;
loop
fetch dd into d ;
exit when dd%notfound ;
dbms_output.put_line('Department:'||d.dname);
  open ee for 'select * from emp where deptno='||d.deptno ;
  loop
  fetch ee into e ;
  exit when ee%notfound ;
  dbms_output.put_line('..Employee:'||e.empno||':'||e.ename);
  end loop;
end loop ;
end ;
/
Department:ACCOUNTING
..Employee:7782:CLARK
..Employee:7839:KING
..Employee:7934:MILLER
Department:RESEARCH
..Employee:7369:SMITH
..Employee:7566:JONES
..Employee:7788:SCOTT
..Employee:7876:ADAMS
..Employee:7902:FORD
Department:SALES
..Employee:7499:ALLEN
..Employee:7521:WARD
..Employee:7654:MARTIN
..Employee:7698:BLAKE
..Employee:7844:TURNER
..Employee:7900:JAMES
Department:OPERATIONS

PL/SQL procedure successfully completed.

HTH

Tags: Database

Similar Questions

sys_refcursor and Ref Cursor
Hello

I found this diffrence between ref and sys_refcursor slider.

If you specify return_type, then the variables of type and slider REF CURSOR of this type are strong; If not,
they are weak.
The variables SYS_REFCURSOR and slider of this type are weak.

my situation is that I must write a procedure stored so many reports entery pages. little enter pages use typed data groups and can't.

so please tel me what is the best in terms of performance and maintainability above three conditions?

Yours sincerely
944768 wrote:

my situation is that I must write a procedure stored so many reports entery pages. little enter pages use typed data groups and can't.

Called stored procedures what and where?

If, with a layer of app such as Java or .net, then they do not distinguish between weak and strong ref Cursor - because it is a concept of PL/SQL.

And by using a ref cursor type in PL/SQL is intended to provide a mechanism to pass the handle of real cursor SQL cursor created in this session, the client (for example Java or .net). Nothing more. So, why even care that PL/SQL? a weak or strong Ref to the application layer slider

so please tel me what is the best in terms of performance and maintainability above three conditions?

I find always frustrating that there is this concept that some methods to create cursors, results in faster and better than other methods, the sliders. It is a concept of bs. All SQLs are analyzed as a SQL cursors. Each. Unique. One. By the SAME CBO.

If the client code (Java, PL/SQL or other) you write for this SQL cursor DOES NOT change the source SQL.

This therefore does not cause the CBO now compile a different SQL execution plan for her. The CBO does not care if your code uses a strong Ref Cursor or a weak Ref Cursor, or a slider DBMS_SQL, an explicit cursor, or whatever. Those are concepts of customer. And do not change the execution plan of cursor SQL on the server. Or its planned performance/cost.

Yes, your client code (Java, PL/SQL, etc.) can use the SQL cursor on the server-side evil - and this can affect performance.

But waiting for a weak Ref cursor will somehow cause a faster cursor or slower for the same SQL statement, that a strong Ref cursor is not understanding what SQL cursor is, and how the customer interacts with its data types, the classes of customers and its customer interfaces with this SQL cursor.

using plsql table and ref cursor in oracle's 10 g
Hi all
Can someone give me an example of a scenario where we need to create a form manually based on a stored database procedure.
And in this process, I created a pl/sql table and a Ref cursor at the database level.

CREATE OR REPLACE PACKAGE SCOTT. TYPE BONUS_PKG IS bonus_rec
IS (RECORD
EmpNo bonus_EMP.empno%TYPE,
Ename bonus_EMP.ename%TYPE,
employment bonus_EMP.job%TYPE,
SAL bonus_EMP.sal%TYPE,
Comm bonus_EMP.comm%TYPE);

TYPE b_cursor IS REF CURSOR RETURN bonus_rec;
TYPE bontab IS TABLE OF bonus_rec INDEX DIRECTORY.

PROCEDURE bonus_refcur (bonus_data IN OUT b_cursor);
PROCEDURE bonus_query (bonus_data IN OUT bontab);
END bonus_pkg;

CREATE OR REPLACE PACKAGE BODY SCOTT. BONUS_PKG IS
PROCEDURE bonus_query (bonus_data IN OUT bontab) IS
II NUMBER;
CURSOR bonselect IS
SELECT empno, ename, job, sal, comm bonus_EMP ORDER BY empno;
BEGIN
OPEN bonselect.
II: = 1;
LOOP
Look FOR bonselect IN
.EmpNo bonus_data (ii),
.ename bonus_data (ii),
.job bonus_data (ii),
.Sal bonus_data (ii),
.comm bonus_data (ii);
EXIT WHEN bonselect % NOTFOUND;
II: = ii + 1;
END LOOP;
END bonus_query;

PROCEDURE bonus_refcur (bonus_data IN OUT b_cursor) IS
BEGIN
Bonus_data OPEN to SELECT empno, ename, job, sal, comm bonus_EMP ORDER BY empno;
END bonus_refcur;

END bonus_pkg;

I want to fill in the data in the forms manually is not using Forms data block Wizard and by program.

Please answer...
Can someone give me an example of a scenario where we need to create a form manually based on a stored database procedure.

In general, you will use a block of proceedings based when you have a collection of data from several tables presented in a form and your username must be able to update the information displayed.

In your sample code, looks like you are using Oracle Support document "Melting a block on a Stored Procedure - examples of Code [ID 66887.1]". If this is the case, continue to follow the document - it guides you through all the steps. There is no need to manually configure things that the data block Wizard will work for you!

I want to fill in the data in the forms manually is not using Forms data block Wizard and by program.

Why? Let the wizard block configuration data of your block based on a procedure for you. There is no need to manually browse the data! I did what you're trying, and it's more work needed. Leave forms to do the work for you. :)

If you absolutely have to do things manually, I recommend that you use the PROCEDURE bonus_query (bonus_data IN OUT bontab) instead of bonus_refcur (bonus_data IN OUT b_cursor) . Then, in your code create a variable of type BONTAB, and then call the bonus_query procedure. Then, it's a simple case of a loop in the table of records returned by the bonus_query procedure. For example:
```
DECLARE
   t_bonus    bonus_pkb.bontab;
BEGIN
   bonus_pkg.bonus_query(t_bonus);

   FOR i in 1 .. t_bonus.count LOOP
      :YOUR_BLOCK.EMPLOYEE_NUMBER := t_bonus(i).empno;
      :YOUR_BLOCK.EMPLOYEE_NAME := t_bonus(i).ename;
      :YOUR_BLOCK.EMPLOYEE_JOB := t_bonus(i).job;
      :YOUR_BLOCK.EMPLOYEE_SALARY := t_bonus(i).sal;
      :YOUR_BLOCK.EMPLOYEE_COMMISSION := t_bonus(i).comm;
   END LOOP;
END;
```
This code example shows the basics, but as is the sample code - you will need to adapt to your situation.

Also, I highly recommend that you look at the article inol listed. It is a very thorough debate on the REF CURSOR. If you have set up using a procedure based on the data source - it is more effective to spend the record table to your form that it must pass a ref cursor Using a ref cursor, you might as well just using a standard called cursor and loops on your named cursor. The effect is the same (a line returned at the same time creating lots of network traffic). Using the table of records is more efficient because the data set is returned if the network traffic is reduced.

Hope this helps,
Craig B-)

If someone useful or appropriate, please mark accordingly.

Ref Cursor on implicit and explicit cursors
Hello

In my company the drafting of PL/SQL procedure, everyone uses "Ref Cursor",
But the article below, said implicit is the best, then Explicit and Ref Cursor...

[http://www.oracle-base.com/forums/viewtopic.php?f=2 & t = 10720]

I'm a bit confused by this, can someone help me understand this?

Thank you
SeshuGiri wrote:

In my company the drafting of PL/SQL procedure, everyone uses "Ref Cursor",
But the article below, said implicit is the best, then Explicit and Ref Cursor...

[http://www.oracle-base.com/forums/viewtopic.php?f=2&t=10720]

I'm a bit confused by this, can someone help me understand this?

It has performance and it has performance...

To explain. There is one type of cursor in Oracle - that is the cursor which is analyzed and compiled by the SQL engine and stored in the shared the database pool. The "+ client +" then receives a handle (called a SQL statement handle of many APIs) that can be used to make reference to this slider in the SQL engine.

The performance of this slider is not determined by the customer. It is determined by the execution plan and how much enforcement of this slider cost ito of server resources.

The customer can be Java, VB, .net - or a PL/SQL program. This client language (SQL client), has its own structures dealing with this from the SQL engine cursor handle.

It can hide by the developer all together - so that they can't even see that there is a statement handle. That's what the implicit cursors in PL/SQL.

It can allow the developer to manually define the structure of slider - this is what the explicit cursors, ref Cursor and DBMS_SQL cursors in PL/SQL.

Each of these client cursor structures provides the programmer with a set of features to address different SQL cursor. Explicit cursor in PL/SQL constructs do not have the use of dynamic SQL statements. REF CURSOR and cursors DBMS_SQL do. REF CURSOR does not allow the programmer determine, at runtime, the structure of the projection of the cursor SQL. DBMS_SQL sliders do.

Only ref Cursor can be created in PL/SQL and then handed over to another client (for example, Java/VB) for treatment. Etc.

If each of the works of art/customer interfaces gives you a different feature for SQL cursors.

Choose the implicit cursors for example does not the SQL cursor move faster. The SQL engine does not know and does not care, which customer construct you use to deal with the SQL cursor handle, he gave you. It does not matter. It does not affect his performance of cursor SQL.

But on the client side, it can matter - if your code when dealing with that SQL cursor determines how fast your interaction with this SQL cursor is. How many context changes you make. How you use and reuse the SQL (for example hard vs soft analysis vs analysis reusing the same cursor handle). Etc.

Are there any unique client cursor construction which is better? N °

It's ignorant views. The customer's language provides a box tool, where each tool has a specific application. The competent developer will use the right tool for the job. The stupid developer will select a tool and use it as The Hammer to 'solve' all problems.

How could a routine walk-run? Inside, Indoor walk or another run? I do this routine outdoors with Gps first so that I'm not kidding my calibration data? Help please and thank you!

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Hi all
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for stocks, you can use this command

---

Application.doAction (action: string, to: string)

Object Adobe Photoshop CC 2015 library

Playing the action specified in the Actions palette.

Action: Data Type: string

The name of the action to play. (Note that the action name is case-sensitive and must match the name in the Actions palette).

of: Data Type: string

The name of the action set that contains the action being played. (Note that the defined action name is case-sensitive and must match the name in the Actions palette).

---

Make sure they are loaded in photoshop

Another way is to convert action scripts (I see people often using this tool http://www.tonton-pixel.com/blog/scripts/utility-scripts/convert-actions-file/)

and run the scripts, you put them on the .jsx file, where they will be evaluated, if you used standard mat and then call them by the name of the function

I suggest you check out the samples, if you still have questions

How to run commands inside a virtual machine?

Hey,.
I train hard run commands inside a machine virtual on vSphere (batch scripts) and could not find a good way to do it,
in ESX 3.5 "vmrun.exe" did the job, but it does not work on vSphere for some reason any.
I also tried to do with PowerCLI but could not find any help for this command.
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vmrun must work with vSphere, in fact, vSphere is the only version of ESX that vmrun (and the VIX API, on which is built vmrun) officially supports. ESX 3.5 is only experimental support.

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Run the report to PL/SQL with the branch to another page
I have an application which, at various times, I run a PL/SQL procedure to perform an action, and then we must run a report while also navigating away from the current page. The actions are performed on a button click.

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I'm pulling my hair out at this time, especially because I am under pressure to get the system in very short time.

Any suggestion would be appreciated.
You can run queries report of their URL (f? p = & APP_ID.: 0: & SESSION.: PRINT_REPORT =)

So one approach would be to
The button click, call a JS function which
1 use the Ondemand/recall process in order to perform the processing workflow (file selection box)
2 open the report in a popup (from your IR page)
3 redirect leaves the IR page to another page?
------
Another approach:
1. IR report submits the page
2. in the PLSQL block, you do the treatment
3. the branch redirects to a URL that would point to the report URL.
OR

3. do you have a JS onload which runs only when demand is demand for BUTTON and opens a page that points to the report.
------

Still another way is to use htp.p in PLSQL block which made the treatment of workflow
So your code PLSQL

BEGIN
  --Do the workflow processing here
  --End workflow processing
  htp.p('');
END;

REF cursor in sql dynamic help to run immediately
Hello

How can we get the Ref cursor out a dynamic sql statement by executing immediate proceedings
for example, immediately run ' open CROR for select * from dynamicTable'

in this area, CROR is a dynamic cursor and table name is dynamic (known at run time), and we can't write static sql statement.

Thank you
I don't know what exactly you are after but here is a sample of what can be done.
```
SQL> VAR r REFCURSOR;
SQL> BEGIN
  2          OPEN :r FOR 'SELECT * FROM DUAL';
  3  END;
  4  /

PL/SQL procedure successfully completed.

SQL> PRINT r

D
-
X
```
You can use the OPEN... FOR education with a dynamic string.

Casting table PL/SQL for the type of existing table and back ref cursor

Hello

I have the problem of casting a pl/sql table for the type of an existing table and turning the ref cursor to the application. Casting a ref cursor back and number of pl/sql table works well.

Declarant

< strong > TYPE type_table_name IS TABLE OF THE package_name.table_name%ROWTYPE; < facilities >

within the stored procedure, fill in a table of this type temp_table_name and returning the ref cursor help

< strong > results OPEN to SELECT * FROM TABLE (CAST (temp_table_name AS type_table_name)); < facilities >

generates an error. type_table_name is unknown in this distribution. According to me, this happens because of the declaration of the type locally.

Statement type_table_name inside the package specification does not work neither. Incredible, cast to the said dbms_sql.number_table to specify ref cursor back and dbms_sql package works very well!

< strong > CREATE TYPE type_table_name IS TABLE OF THE package_name.table_name%ROWTYPE; < facilities > deals without any error but creates an invalid type complain a reference to package_name.table_name

I don't want to declare every column in the table in type_table_name, because any change the table_name table would result in an inconsistent type_table_name.

Thanks in advance!

Edited by: user6014545 the 20.10.2008 01:04

In any case you are right that there is a problem around anchorage (or maintaining) types of objects persistent to match the table structures, they may represent.

In the case you describe, you might be better off just open the refcursor immediately the using one of the techniques described in the http://www.williamrobertson.net/documents/comma-separated.html to manage the delimited list.

In the more general case where the line of treatment is necessary, you may make the pipeline functions.

Oracle Database 10g Express Edition Release 10.2.0.1.0 - Production

SQL> CREATE TABLE table_name
  2  AS
  3     SELECT ename column_name
  4     FROM   emps;

Table created.

SQL> CREATE OR REPLACE PACKAGE package_name
  2  AS
  3     TYPE type_name IS TABLE OF table_name%ROWTYPE;
  4
  5     FUNCTION function_name_pipelined (
  6        parameter_name IN VARCHAR2)
  7        RETURN type_name PIPELINED;
  8
  9     FUNCTION function_name_refcursor (
 10        parameter_name IN VARCHAR2)
 11        RETURN sys_refcursor;
 12  END package_name;
 13  /

Package created.

SQL> CREATE OR REPLACE PACKAGE BODY package_name
  2  AS
  3     FUNCTION function_name_pipelined (
  4        parameter_name IN VARCHAR2)
  5        RETURN type_name PIPELINED
  6     IS
  7     BEGIN
  8        FOR record_name IN (
  9           SELECT table_alias.*
 10           FROM   table_name table_alias
 11           WHERE  table_alias.column_name LIKE parameter_name) LOOP
 12
 13           PIPE ROW (record_name);
 14        END LOOP;
 15
 16        RETURN;
 17     END function_name_pipelined;
 18
 19     FUNCTION function_name_refcursor (
 20        parameter_name IN VARCHAR2)
 21        RETURN sys_refcursor
 22     IS
 23        variable_name sys_refcursor;
 24     BEGIN
 25        OPEN variable_name FOR
 26           SELECT table_alias.*
 27           FROM   TABLE (package_name.function_name_pipelined (
 28                     parameter_name)) table_alias;
 29
 30        RETURN variable_name;
 31     END function_name_refcursor;
 32  END package_name;
 33  /

Package body created.

SQL> VARIABLE variable_name REFCURSOR;
SQL> SET AUTOPRINT ON;
SQL> BEGIN
  2     :variable_name := package_name.function_name_refcursor ('%A%');
  3  END;
  4  /

PL/SQL procedure successfully completed.

COLUMN_NAME
-----------
ALLEN
WARD
MARTIN
BLAKE
CLARK
ADAMS
JAMES

7 rows selected.

SQL> ALTER TABLE table_name ADD (new_column_name VARCHAR2 (1) DEFAULT 'X');

Table altered.

SQL> BEGIN
  2     :variable_name := package_name.function_name_refcursor ('%A%');
  3  END;
  4  /

PL/SQL procedure successfully completed.

COLUMN_NAME NEW_COLUMN_NAME
----------- ---------------
ALLEN       X
WARD        X
MARTIN      X
BLAKE       X
CLARK       X
ADAMS       X
JAMES       X

7 rows selected.

SQL>

2 running, 1 inside and 1 sql external, dynamic queries using loops and ref Cursor

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