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 VIEWPROCEDURE 

Who Can Drop a Trigger?

DML triggers can be dropped by:

  • Administrators

  • The owner of the table (or view)

  • Users with — for a table — the ALTER ANY TABLE, or — for a view — ALTER ANY VIEW privilege

Database and DDL triggers can be dropped by:

Example of DROP TRIGGER

Deleting the set_cust_no trigger
DROP TRIGGER set_cust_no;
See also

[fblangref50-ddl-trgr-create], [fblangref50-ddl-trgr-recreate]

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RECREATE TRIGGER

Drops a trigger if it exists, and creates a trigger

Available in

DSQL

Syntax
RECREATE TRIGGER trigname
  { <relation_trigger_legacy>
  | <relation_trigger_sql>
  | <database_trigger>
  | <ddl_trigger> }
  {<psql_trigger> | <external-module-body>}

!! See syntax of CREATE TRIGGER for further rules !!

The RECREATE TRIGGER statement creates a new trigger if no trigger with the specified name exists;otherwise the RECREATE TRIGGER statement tries to drop the existing trigger and create a new one.The operation will fail on COMMIT if the trigger is in use.

Warning

Be aware that dependency errors are not detected until the COMMIT phase of this operation.

Example of RECREATE TRIGGER

Creating or recreating the set_cust_no trigger.

RECREATE TRIGGER set_cust_no
ACTIVE BEFORE INSERT ON customer POSITION 0
AS
BEGIN
  IF (NEW.cust_no IS NULL) THEN
    NEW.cust_no = GEN_ID(cust_no_gen, 1);
END
See also

[fblangref50-ddl-trgr-create], [fblangref50-ddl-trgr-drop], [fblangref50-ddl-trgr-crtalter]