How to create a Ref cursor table

I have a proc that returns a Ref Cursor, what is the easiest way to create a table based on the return of the ref cursor?

declare
type rc is ref cursor;
p_data rc;
Start
call_my_proc (p_data);
: result: = p_data; ((- If I run this in TOAD I can see the data here, but I want to create a table based on it rather than showing)
end;

Thank you.

Edit: sorry. typed this wrong, first time, should be right now

I recommend you read this first... {: identifier of the thread = 886365}

and then you'll have a better idea of how to make to create a table in your query.

Tags: Database

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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:
```
{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},
..................
.........
.....
```
Our PL/SQL procedure should exit a REF CURSOR with lines like this:
```
236,  ADSL-320K-1M-3G
257,  ADSL-1024K-1M-20G
232,  ADSL-INTERANET-UNLIMITED
234,  ADSL-512K-3M-16G
.........
......
```
How do this pls?

Published by: Channa on May 18, 2012 02:30
Hello

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.

help how to extract the ref cursor in the table field
Hello.

I have a query similar to the following:
```
select department_id, cursor (select employee_id from employees where department_id = d.department_id)
  from departments d
```
Expecting to get several lines, I want this select this option to be in bulk sampled in a table variable nested (of another type of nested table) which is copied to an out parameter in a procedure. I have some doubts:
1 should. what I create the column in the inner nested table that will keep the result of the ref cursor? Ref cursor colunm? A sort of column Adrien?
2. If the column in the nested table inside that will keep the result of the ref cursor is another array, how can I write the result of the entire query in a single volume?

(I want to bulk collect everything in a single query, I know how to do with pl/sql do not inflate but using two nested for loops, that's what I try to avoid).

Thanks in advance.
It would be simpler:
```
declare
    type dep_emp_list_tbl_type
      is table of sys.OdciVarchar2List;
    v_dep_emp_list_tbl dep_emp_list_tbl_type;
    v_dep_id_tbl sys.OdciNumberList;
begin
    select  department_id, cast(multiset(select employee_id from hr.employees where department_id = d.department_id) as sys.OdciVarchar2List)
      bulk collect into v_dep_id_tbl,v_dep_emp_list_tbl
      from hr.departments d;
end;
/
```
SY.

Create a REF CURSOR as an array of display/temp

Hello world
I had to upgrade a number of Crystal Reports Using REF CURSOR as part of an ERP upgrade project. The new version of the ERP application supports more use of the REF CURSOR and only supports the use of views/tables.
I don't see how I can rewrite the REF CURSOR (which are defined in the PL/SQL procedures), in the form of VIEWS / TEMP TABLES with a single call. That is to say when the user runs the report.
Can anyone suggest a method of conversion of the REF CURSOR in view/Temp Table without the two steps, the steps to populate a temporary table and then, i.e. 1 - 2 - query the table in the report. ??? -I was looking at a Pipelining as an option but again could reach with only two stages, pre filling before running the report.
Any advice would be greatly received.
Kind regards
David.

I found a solution by creating a FUNCTION with a PIPELINED return cursor, and then create a temporary table in the result set. Not really ideal was to use a Pragma AUTONOMOUS_TRANSACTION, but will work for me.

Thank you

David.

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:
Hello

Here 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 = :b2

by 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);
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Hope that helps...

How to pass a REF CURSOR from a function
I tried to compile the following function:

CREATE or REPLACE FUNCTION example
RETURN REFCURSOR
IS
heart REFCURSOR;
BEGIN
OPEN FOR heart
"SELECT x FROM table";
RETURN cur;.
END;

but I get:

PLS-00201: identifier 'REFCURSOR' must be declared.

Can you help me in the right syntax? I never return a REF CURSOR to a function.
Is my Version of Oracle 8.1.7

Thank you!
You cannot use SYS_REFCURSOR in Oracle 8i.
The work is approximately as follows
```
create or replace package my_pk as
type my_cur is REF CURSOR;
end my_pk;

-- Now write your function
create or replace function my_func return my_pk.my_cur
as
l_cur my_pk.my_cur;
begin
open l_cur for select * from table_name;
return l_cur;
end my_func;
```
Thank you
Andy

How to read my ref cursor return user defined cursor type

Hello
I have the types defined as follows:

TYPE MY_RECORD IS RECORD (
COL1 TABLE1.COL1%TYPE,
COL2 TABLE1.COL2%TYPE
   );

TYPE MY_CURSOR IS REF CURSOR
RETURN MY_RECORD;

It is used as a return type in a stored procedure.
I have a pl/sql block, where I make a call to MS that returns this cursor.
How to read individual values for SP?

SQL> create or replace package pkg
as
   type my_record is record (col1 emp.empno%type, col2 emp.ename%type);

   type my_cursor is ref cursor
      return my_record;

   procedure p (cur out my_cursor);
end pkg;
/
Package created.

SQL> create or replace package body pkg
as
   procedure p (cur out my_cursor)
   as
   begin
      open cur for
         select   empno, ename
           from   emp
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end pkg;
/
Package body created.

SQL> declare
   cur     pkg.my_cursor;
   e_rec   pkg.my_record;
begin
   pkg.p (cur);

   loop
      fetch cur into   e_rec;

      exit when cur%notfound;
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      dbms_output.put_line ('; Ename: ' || e_rec.col2);
   end loop;

   close cur;
end;
/
Empno: 7369; Ename: SMITH
Empno: 7499; Ename: ALLEN
PL/SQL procedure successfully completed.

How to clear the Ref Cursor runtime error

Hello everyone,
the code as follows

create or replace 
procedure Country_sel(key in varchar2)
as
cc Res_RelcountryLan.countrycode%type;
len Res_Language.langname_en%type;
lid Res_Language.langid%type;
ab Res_Language.Abrivation%type;
type refcursorr is ref cursor;
cur refcursorr;
d_stmt varchar2(100);
begin
d_stmt := 'select RCL.countrycode,RL.langid,RL.langname_'||key||',
RL.Abrivation from  Res_RelCountryLan RCL inner join Res_Language RL ON RCL.LangId = RL.LangId';
open cur for d_stmt;
loop
fetch cur into cc,lid,len,ab;
if cur%found then
dbms_output.put_line(cc||lid||len||ab);
else
exit;
end if;
end loop;
close cur;
commit;
end  Country_sel;

When I run this code im getting

ORA-06502: PL/SQL: numeric or value error: character string buffer too small
ORA-06512: at "RASOOL.COUNTRY_SEL", line 11
ORA-06512: at line 6

can you please help me get rid of this problem.

thanking you,
Prakash


d_stmt varchar2(100);

Increase the size of d_stmt. Your an a larger string assignment


d_stmt := 'select RCL.countrycode,RL.langid,RL.langname_'||key||',RL.Abrivation from  Res_RelCountryLan RCL inner join Res_Language RL ON RCL.LangId = RL.LangId';

The size of the string above is more than 100 characters.

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http://download.Oracle.com/docs/CD/B19306_01/server.102/b14200/statements_7002.htm#i2153132

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How to create a Ref cursor table

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