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How To Open a Cursor Variable
How To Open a Cursor Variable? - Oracle DBA FAQ - Working with Cursors in PL/SQL
✍: FYIcenter.com
A cursor variable must be opened with a specific query statement before you can fetch data fields from its data rows. To open a cursor variable, you can use the OPEN ... FOR statement as shown in the following tutorial exercise:
CREATE OR REPLACE PROCEDURE FYI_CENTER AS TYPE emp_ref IS REF CURSOR RETURN employees%ROWTYPE; TYPE any_ref IS REF CURSOR; emp_cur emp_ref; any_cur any_ref; sys_cur SYS_REFCURSOR; BEGIN OPEN emp_cur FOR SELECT * FROM employees; OPEN any_cur FOR SELECT * FROM employees; OPEN sys_cur FOR SELECT * FROM employees; CLOSE sys_cur; CLOSE any_cur; CLOSE emp_cur; END; /
2007-04-28, 4921👍, 0💬
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