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11g AFTER STARTUP Trigger

AFTER STARTUP trigger checks the database role and open mode of the database. Based on the values it starts the appropriate service using DBMS_SERVICE.START_SERVICE procedure.


Here is an example of AFTER STARTUP trigger:
CREATE TRIGGER SERVICE_TRG AFTER STARTUP ON DATABASE
DECLARE
DBROLE VARCHAR(30);
OPENMODE VARCHAR(30);
BEGIN
SELECT DATABASE_ROLE INTO DBROLE FROM V$DATABASE;
SELECT OPEN_MODE INTO OPENMODE FROM V$DATABASE;
IF DBROLE = 'PRIMARY' THEN
DBMS_SERVICE.START_SERVICE('PRIM');
ELSIF DBROLE = 'PHYSICAL STANDBY' THEN
IF OPENMODE = 'READ ONLY' THEN
DBMS_SERVICE.START_SERVICE('RTQ');
END IF;
ELSIF DBROLE = 'LOGICAL STANDBY' THEN
DBMS_SERVICE.START_SERVICE('LSBY');
ELSIF DBROLE = 'SNAPSHOT STANDBY' THEN
DBMS_SERVICE.START_SERVICE('SNAP');
END IF;
END;

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