20190422 T-SQL 觸發器

-- 1 數據庫服務html -- 2 觸發器數據庫 CREATE TRIGGER no_insert on xs AFTER INSERT AS BEGIN RAISERROR('XS不讓插入數據',1,1); ROLLBACK TRANSACTION END服務器 SELECT * FROM XS WHERE 學號='14311011'post INSERT INTO xs(學號,姓名,總學分

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