PL/SQL cursor-collection related query

Question

Hi all,
I have a function which will take a collection (table of numbers) as a input argument.
Each id in the collection corresponds to a set of columns.I need to return a cursor which will contain the resultsets for all the ids in the collection.How do i do it.
what should the query be ?
say each id has three columns a,b,c to be returned.
I am given the collection of ids and am supposed to return a cursor which will have a,b,c columns for all the ids.
For individual ids , its straight forward
select a,b,c from sometable where id=input_id.
But how do i construct the cursor given a collection of ids?
Thanks in advance.

Answer 1

Hi,
Please see the below example:
SQL>CREATE TABLE T ( ID NUMBER(2),a NUMBER(2),b NUMBER(2),c NUMBER(2));
Table created.
SQL>SELECT * FROM t;
        ID          A          B          C
         1         12         13         15
         2         21         31         51
2 rows selected.
SQL>
Use the below query to create your cursor :
SQL>SELECT a,b,c FROM t tb1,  TABLE( TBL_TYPE(1,2)) tb2 WHERE tb1.id = tb2.column_value;
         A          B          C
        12         13         15
        21         31         51
2 rows selected.
SQL>Regards