IS_DROP_COLUMN : IS_DROP_COLUMN « Trigger « Oracle PL/SQL Tutorial

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Oracle PL/SQL Tutorial » Trigger » IS_DROP_COLUMN

28. 18. 1. IS_DROP_COLUMN


SQL> CREATE OR REPLACE TRIGGER what_got_dropped

  2  AFTER ALTER ON SCHEMA

  3  BEGIN

  4    IF IS_DROP_COLUMN('COL2') THEN

  5      DBMS_OUTPUT.PUT_LINE('You dropped col2');

  6    END IF;

  7  END;

  8  /



Trigger created.



SQL>

SQL> drop trigger what_got_dropped;



Trigger dropped.

28. 18. IS_DROP_COLUMN
	28. 18. 1.	IS_DROP_COLUMN

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