How to use an Oracle Associative Array in a SQL query

Question

ODP.Net exposes the ability to pass Associative Arrays as params into an Oracle stored procedure from C#. Its a nice feature unless you are trying to use the data contained

Answer 1

I would create a database type like this:

create type v2t as table of varchar2(30);
/

And then in the procedure:

FOR i IN 1..associativeArray.COUNT LOOP
    databaseArray.extend(1);
    databaseArray(i) := associativeArray(i);
END LOOP;

OPEN refCursor FOR
SELECT T.*
FROM   SOME_TABLE T,
       ( SELECT COLUMN_VALUE V
         FROM   TABLE( databaseArray )
       ) T2
WHERE  T.NAME = T2.V;

(where databaseArray is declared to be of type v2t.)