The MS SQL Server Create Trigger Tool allows users to create triggers for a database. The following example is output for MS SQL Server. CREATE TRIGGER dbo.test_trigger ON -- table_name -- WITH ENCRYPTION FOR -- DELETE, INSERT, UPDATE -- WITH APPEND -- NOT FOR REPLICATION AS -- ...
第一步:创建一个新的数据库 CREATEDATABASETriggerExample; 1. 首先,我们需要创建一个新的数据库来存储我们的示例数据和触发器。使用CREATE DATABASE语句可以创建一个名为TriggerExample的数据库。 第二步:创建一个包含触发器的表 USETriggerExample;CREATETABLEEmployees(IDINTPRIMARYKEY,NameVARCHAR(50),SalaryINT); ...
--查看数据库中所有触发器 https://docs.microsoft.com/en-us/sql/t-sql/statements/create-trigger-transact-sql?view=sql-server-ver15 -- 涂聚文(Geovin Du) edit https://www.mssqltips.com/sqlservertip/5909/sql-server-trigger-example/ select * from sysobjects where xtype='TR' -- exec sp_he...
CREATE TRIGGER trg_PreventDropTable ON DATABASE FOR DROP_TABLE AS BEGIN -- 检查要删除的表名 IF EVENTDATA().value('(/EVENT_INSTANCE/ObjectName)[1]', 'NVARCHAR(128)') = 'ExampleTable' BEGIN -- 抛出错误,阻止删除操作 RAISERROR('不允许删除表 ExampleTable', 16, 1); ROLLBACK TRANSACTION; ...
-- 触发器调用CREATETRIGGERtrg_AuditTransactionONTransactionsAFTERINSERTASBEGINDECLARE@messageNVARCHAR(MAX)SELECT@message=CONCAT('Transaction ID:',Id)FROMinserted;SENDONSERVICE AuditService@message;END 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 验证测试 为了...
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...
Transact-SQL reference for the CREATE TRIGGER statement, which is used to create a DML, DDL, or logon trigger.
Only direct recursion of AFTER triggers is prevented when the RECURSIVE_TRIGGERS database option is set to OFF. To disable indirect recursion of AFTER triggers, also set thenested triggersserver option to0. Examples The following example shows using recursive triggers to solve a self-referencing...
SQL Server Trigger发送邮件的步骤是什么? 当然可以。在 SQL Server 中,您可以使用 SQL Server Agent 作业来实现在执行触发器时发送电子邮件。以下是一个简单的步骤来实现这个功能: 首先,确保 SQL Server Agent 正在运行。您可以在 SQL Server Management Studio (SSMS) 中右键单击 SQL Server Agent,然后选择“启...
CREATE TRIGGER statement (advanced trigger)FL 500The CREATE TRIGGER (advanced) statement defines an advanced trigger in a schema and builds a trigger package at the current server. Each time that the trigger activates, the trigger package executes one or more times. FL 500For a description of ...