IF NOT EXISTS ( SELECT *
FROM sysobjects
WHERE id = OBJECT_ID(N'delpoints')
AND OBJECTPROPERTY(OBJECT_ID('delpoints'), N'IsTrigger') = 1 )
BEGIN
EXEC ('CREATE TRIGGER delpoints ON GHXH_Customer AFTER UPDATE AS BEGIN update GHXH_Customer set points = 0 where name like ''%零售顧客%'' END')
END