Events
Applies to ❌ Open Source Edition ✅ Express Edition ✅ Professional Edition ✅ Enterprise Edition
Most dialects supporting triggers can fire ...
-
BEFORE -
AFTER -
INSTEAD OF
... a certain event, including ...
-
INSERT -
UPDATE -
DELETE
Note that the above refer to events, not the statements, meaning that a trigger may fire also for the MERGE statement.
Some examples illustrating possible triggers:
create.createTrigger("trg1")
.beforeInsert()
.on(BOOK)
.forEachRow()
.as(insertInto(LOG).columns(LOG.TEXT).values("Row inserted in BOOK"))
.execute();
create.createTrigger("trg")
.beforeUpdate()
.on(BOOK)
.forEachRow()
.as(insertInto(LOG).columns(LOG.TEXT).values("Row updated in BOOK"))
.execute();
create.createTrigger("trg")
.beforeDelete()
.on(BOOK)
.forEachRow()
.as(insertInto(LOG).columns(LOG.TEXT).values("Row deleted in BOOK"))
.execute();
create.createTrigger("trg")
.beforeInsert().orUpdate().orDelete()
.on(BOOK)
.forEachRow()
.as(insertInto(LOG).columns(LOG.TEXT).values("Row inserted or updated or deleted in BOOK"))
.execute();
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