update product set num = num - 2 where id = 1; 1. 2. 下面我们构建触发器: delimiter $ create trigger trig_1 after insert on orders for each row begin set num = num - 2 where id = 1; end$; 1. 2. 3. 4. 5. 6. delimiter $表示将$作为sql语句的结束标志,因为在begin...end之间...
create trigger Trigger_Name on Table_name instead of [insert,update,delete] as [sql_statements] go 例如在系统查询分析器执行 update t1 set column_1='aaa' where id=123 可以看到t1下123号的column_1值没有预期改变 而是按照Trigger中 [sql-statements]中的格式走了 如何利用inserted 和 deleted表: 例...
mssql创建两个表同步执行插入语句的Trigger CREATETRIGGERSyncInsertONMyTWITHENCRYPTION--加密,Trigger具体内容不可查看AFTERINSERT--插入成功后,执行TRIGGER事件ASBEGINIF(ROWCOUNT_BIG()=0)RETURN;INSERTINTOMyTBak (ID, Name, Age, Gender)SELECTID, Name, Age, Gender/** *代表了Trigger作用的表对象(因为是INSERT...
after trigger 2, instead of trigger --区别是after trigger是实际操作完成后触发, --而instead of是实际操作前触发,并且会替换实际操作, --也就是说触发instead of 之后实际操作将不会再执行 --- --创建触发器 if exists(select * from sysobjects where name=N'trigger_Stu_stuId') drop trigger trigger_...
Create SQL Server trigger example Now that we have the test environment set, it’s time to create our trigger. Take a look at the SQL Server trigger example. CREATE TRIGGER TR_Audit_Employees ON dbo.Employees FOR INSERT, UPDATE, DELETE ...
CREATE TRIGGER [schema_name.]trigger_name -- Create Trigger Statement ON { table_name | view_name } { FOR | AFTER | INSTEAD OF } {[INSERT],[UPDATE],[DELETE]} [NOT FOR REPLICATION] AS {sql_statements} Here is a breakdown of the syntax in the code block above. ...
2.1.2.210 T211-05, Ability to specify a search condition that shall be True before the trigger is invoked 發行項 2019/02/15 意見反應 V0246: The specification states the following: Subclause 4.28.2, "Characteristics of SQL-invoked routines": If a <routine invocation> is contained i...
V0244: The specification states the following: Subclause 4.39.1, General description of triggers : The triggered action is specified to
The sink will queue a certain number of log events before they're actually written to SQL Server as a bulk insert operation. There is also a timeout period so that the batch is always written even if it has not been filled. By default, the batch size is 50 rows and the timeout is...
For other Microsoft SQL Server databases, the driver does not report trigger results if the statement is a single INSERT, UPDATE, or DELETE statement. In this case, the only result that is returned is the update count generated by the statement that was executed (if errors do not occur)....