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_...
A SQL Server trigger is a piece of procedural code. It is just like a stored procedure which is only executed when a given event happens. There are different types of events that can fire a trigger. To name you a few, the insertion of rows in a table, a change in a table structure...
create trigger trigger_name on table_Name // On 关键字 [with Encryption] //加密 for [/ after] {[insert [,]/ update [,] /delete]} --指定触发器只有在触发SQL语句中制定的所有操作都已经成功执行后才激发。(包括所有的级联和约束都检查成功后才能激发) AS [SQL-statements] go 利用触发器instead ...
Triggers are database objects that store code and get executed automatically when some type of event occurs, such as a data change or change to an object. In SQL Server, there are four types of triggers:DDL Triggers (Data Definition Language), DML Triggers (Data Manipulation Language, CLR...
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/**...
Example #1 mssql_query() example <?php// Connect to MSSQL$link = mssql_connect('KALLESPC\SQLEXPRESS', 'sa', 'phpfi');if (!$link || !mssql_select_db('php', $link)) { die('Unable to connect or select database!');}// Do a simple query, select the version of // MSSQL ...
SQL permissions are a very complex subject. Here is an example of one possible solution (valid for SQL 2012 or later):CREATE ROLE [SerilogAutoCreate]; GRANT SELECT ON sys.tables TO [SerilogAutoCreate]; GRANT SELECT ON sys.schemas TO [SerilogAutoCreate]; GRANT ALTER ON SCHEMA::[dbo] TO ...
"Basic trigger capability", conforming SQL language shall not contain a <trigger definition>. Subclause 11.50, "<drop trigger statement>": <drop trigger statement> ::= DROP TRIGGER <trigger name> ... Conformance Rules Without Feature T211, "Basic trigger capability", conforming SQL langu...
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...
CREATE TRIGGER trigger_name ON { ALL SERVER | DATABASE } [ WITH <ddl_trigger_option> [ ,...n ] ] { FOR | AFTER } { event_type | event_group } [ ,...n ] AS { sql_statement [ ; ] [ ,...n ] | EXTERNAL NAME < method specifier > [ ; ] } ...