Firebird Documentation Index → Firebird 1.5 Language Ref. Update → DDL statements → CREATE OR ALTER TRIGGER
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CREATE OR ALTER TRIGGER

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Find a more recent version at Firebird 5.0 Language Reference: TRIGGER

Available in: DSQL, ESQL

Added in: 1.5

Description: If the trigger does not yet exist, it is created just as if CREATE TRIGGER were used. If it already exists, it is altered and recompiled. Existing permissions and dependencies are preserved.

Syntax: Exactly the same as for CREATE TRIGGER.

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Firebird Documentation Index → Firebird 1.5 Language Ref. Update → DDL statements → CREATE OR ALTER TRIGGER