SQL ServerCREATE TRIGGER语句 CREATE TRIGGER语句创建一个新触发器,当表发生INSERT、DELETE或UPDATE等事件时,该触发器将自动触发。 语法: CREATETRIGGER[schema_name.]trigger_name ONtable_name AFTER {[INSERT],[UPDATE],[DELETE]} [NOTFORREPLICATION] AS {sql_statements} 其中: schema_name是新触发器所属的架...
CLR triggers behave the same way as T-SQL triggers, bringing the same power to the table: centralization and encapsulation of logic. However, CLR triggers can be written in a .NET language and possibly take advantage of resources not easily accessible from T-SQL, such as regular expressions...
Applies to: SQL Server Azure SQL Database Azure SQL Managed Instance DDL triggers fire in response to a variety of Data Definition Language (DDL) events. These events primarily correspond to Transact-SQL statements that start with the keywords CREATE, ALTER, DROP, GRANT, DENY, REVOKE or ...
# Set the path context to the local, default instance of SQL Server and to the#database tables in AdventureWorks2022CD \sql\localhost\default\databases\AdventureWorks2022\Tables\#Get reference to the trigger's target table$mytab=get-itemSales.Customer# Define a Trigger object v...
适用范围:SQL Server(SQL Server 2016 (13.x) 到当前版本)、Azure SQL 数据库。 SERVER CONTROL SERVER DATABASE ALTER ANY CONTRACT ALSC SERVER CONTROL SERVER DATABASE ALTER ANY DATABASE AUDIT ALDA SERVER ALTER ANY SERVER AUDIT DATABASE ALTER ANY DATABASE DDL TRIGGER ALTG SERVER CONTROL SERVER DATA...
-- Create our logon triggerCREATETRIGGERMyHostsOnlyONALLSERVERFORLOGONASBEGINIF (-- White list of allowed hostnames are defined here.HOST_NAME()NOTIN('ProdBox','QaBox','DevBox','UserBox') )BEGINRAISERROR('You are not allowed to login',16,1);ROLLBACK;ENDEND ...
DDL triggers can fire in response to a Transact-SQL event processed in the current database, or on the current server. The scope of the trigger depends on the event. For example, a DDL trigger created to fire in response to a CREATE_TABLE event can do so whenever a CREATE_TABLE event...
KEEPIDENTITY、IGNORE_CONSTRAINTS和IGNORE_TRIGGERS提示需要數據表的ALTER許可權。 範例 A。 使用 TABLOCK 提示指定鎖定方法 下列範例會指定在 AdventureWorks2022 資料庫中的Production.Product數據表上取得共享鎖定,並保留到UPDATE語句結尾為止。 SQL UPDATEProduction.ProductWITH(TABLOCK)SETListPrice = ListPrice *1.10WH...
SELECT name, OBJECT_DEFINITION(OBJECT_ID) as trigger_definition, parent_class_desc, create_date, modify_date, is_ms_shipped, is_disabled FROM sys.server_triggers ORDER BY name ASC 查看使用了硬编码值的应用程序的代码 有时候,允许连接的主机名和应用程序会被硬编码到应用程序中。如果你遇到的是.NET...
NESTED_TRIGGERS 適用於:SQL Server (從 SQL Server 2012 (11.x) 開始) 指定AFTER 觸發程序是否可以重疊顯示;亦即,執行起始另一個觸發程序的動作,後者再起始另一個觸發程序等。 只有當 CONTAINMENT 已經設為 PARTIAL 時,才允許這個選項。 如果 CONTAINMENT 設定為 NONE,就會發生錯誤。 TRANSFORM_NOISE_WORDS 適用...