Dynamic cursor definition in PL/SQL

Question

Is it possible to have dynamic cursor definition in PL/SQL. Like
using DBMS_SQL for dynamic SQL. If yes, how?

Answer 1

Assuming I understand your question correctly, you can use a REF
CURSOR to which you associate a VARCHAR2 which is the query text:
DECLARE
TYPE t_cur IS REF CURSOR ; -- define t_cur as a type
c_cur t_cur ; -- define an actual variable of type t_cur
r_emp emp%ROWTYPE ; -- PL/SQL record to hold row
v_query VARCHAR2(2000) := 'SELECT * FROM emp' ; -- the query!
BEGIN
OPEN c_cur FOR v_query ; -- v_query could contain any valid query
FETCH c_cur INTO r_emp ; -- get first row from dataset
CLOSE c_cur ; -- remember to close the cursor! ;)
END ;
HTH