after附近总有错误
1> CREATE TRIGGER SC_T
2> AFTER UPDATE OF Grade ON SC
3> REFERENCING
4> OLDROW AS OldTuple,
5> NEWROW AS NewTuple
6> FOR EACH ROW
7> WHEN (NewTuple.Grade >= 1.1*OldTuple.Grade)
8> INSERT INTO SC_U(Sno,Cno,OldGrade,NewGrade)
9> VALUES(OldTuple.Sno,OldTuple.Cno,OldTuple.Grade,NewTuple.Grade)
10> GO
消息 102,级别 15,状态 1,服务器 A103,过程 SC_T,第 2 行
'AFTER' 附近有语法错误。
怎么办?????