Create TRIGGER trg_logon_attempt ON ALL SERVER WITH EXECUTE AS 'sa' FOR LOGON AS BEGIN IF ORIGINAL_LOGIN()='nightworker' AND DATEPART(hh,GETDATE()) BETWEEN 7 AND 17 BEGIN ROLLBACK INSERT ExampleAuditDB.dbo.RestrictedLogonAttempt (LoginNM, AttemptDT) VALUES (ORIGINAL_LOGIN(), GETDATE()...
大家都知道SQL Server触发器分为DDL、DML和登录触发器。其中DML触发器对于一个表来说,又可分为Insert、Update、Delete三种触发器。也许触发器的功能作用大家都清楚了,可是大家知道当批量Update或者批量Delete数据的时候,触发器如何工作吗?在这种情况下,触发器不是逐条触发的(也就是说不是删除一条记录的同时,触发器开...
CREATE TRIGGER <触发器名称> --触发器必须有名字,最多64个字符,可能后面会附有分隔符.它和MySQL中其他对象的命名方式基本相象. { BEFORE | AFTER } --触发器有执行的时间设置:可以设置为事件发生前或后。 { INSERT | UPDATE | DELETE } --同样也能设定触发的事件:它们可以在执行insert、update或delete的过...
CREATE TRIGGER dbo.trGroups ON groups AFTER INSERT, UPDATE, DELETE AS -- This trigger submits a cached rates delete job for modified groups. -- It also updates the groups' last modified columns for modified groups. -- It also updates the groups' state (if currently unspecified) based on ...
FIRE_TRIGGERS Applies to: SQL Server 2008 (10.0.x) and later. Specifies that any insert triggers defined on the destination table execute during the binary data stream upload operation. For more information, see BULK INSERT (Transact-SQL). CHECK_CONSTRAINTS Applies to: SQL Server 2008 (10.0....
FIRSTROW 属性不可用于跳过列标题。 BULK INSERT 语句不支持跳过标题。 如果你选择跳过行,SQL Server 数据库引擎只考虑字段终止符,而不会对所跳过行的字段中的数据进行验证。 FIRE_TRIGGERS 指定将在大容量导入操作期间执行目标表中定义的所有插入触发器。 如果为针对目标表的 INSERT 操作定义了触发器,则每次完成批...
For example, when SQL Server 2016 (13.x) was released, changes to the cardinality estimation process were available only for databases using SQL Server 2016 (13.x) default compatibility level (130). Previous compatibility levels retained the cardinality estimation beh...
INSTEAD OF triggers are fired before updates are made to the underlying tables. If updates are made by an INSTEAD OF trigger to underlying tables, the updates occur before any AFTER triggers defined on the table are fired. For example, if an INSTEAD OF INSERT trigger on a view inserts ...
The INSERT statement inserts rows into a table or view. Inserting a row into a view inserts the row into the table on which the view is based if no INSTEAD OF INSERT trigger is defined for this view. If such a trigger is defined, the trigger is activated
If you issueSET TRANSACTION ISOLATION LEVELin a stored procedure or trigger, when the object returns control the isolation level is reset to the level in effect when the object was invoked. For example, if you setREPEATABLE READin a batch, and the batch then calls a stored procedure that se...