Question

In PL/SQL, I would like to pass in a ‘source’ schema as a parameter to a stored procedure. For instance:

BEGIN     CURSOR my_cursor IS       SELECT my_field FROM <schema>.my_table ... 

I want the ‘schema’ value to come from an input parameter into the stored procedure. Does anyone know how I could do that?

P.S. Sorry if this is a stupid simple question, but I’m new to PL/SQL and must get some functions written quickly.

Answer 1

In addition to what Mark Brady said, another dynamic SQL option is to use a REF CURSOR. Since your sample code includes a cursor this would be the most relevant.

PROCEDURE select_from_schema( the_schema VARCHAR2) IS   TYPE my_cursor_type IS REF CURSOR;   my_cursor  my_cursor_type; BEGIN   OPEN my_cursor FOR 'SELECT my_field FROM '||the_schema||'.my_table';    -- Do your FETCHes just as with a normal cursor    CLOSE my_cursor; END;