trigger_name是新触发器的名称。 table_name是应用触发器的表。 事件列在AFTER子句中。事件可以是INSERT、UPDATE或DELETE。单个触发器可以触发对表的一个或多个操作。 NOT FOR REPLICATION选项指示SQL Server在作为复制过程的一部分进行数据修改时不触发触发器。 sql_stateme
select te.*from sys.trigger_events tejoin sys.triggers t on t.object_id = te.object_id where t.parent_class = 0and t.name ='tgr_valid_data'; --查看创建触发器语句 exec sp_helptext'tgr_message'; # 示例,验证插入数据 if ((object_id('tgr_valid_data','TR')isnotnull)) droptrigger...
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 ...
Triggers are one of the core tools available in relational databases such as SQL Server™ 2000. As one of the mainstays of SQL Server database programming, triggers also happen to be one of the topics that I get most of the questions about. In this month's installment of Data Points,...
A trigger is a special type of a database object which is automatically executed upon certain conditions – e.g. actions performed by the user. Currently, four types of triggers exist in SQL Server, and the first two are the most commonly used: ...
请用 ALTER DATABASE 使此数据库联机。 此数据库将以 restricted_user 状态联机。 964 10 否 警告:系统用户 '%.*ls' 在数据库 '%.*ls' 中发现缺少,并且已还原。 要求此用户进行 SQL Server 操作。 965 10 否 警告:在数据库 “%.*ls” 中对象 ID %d 上的索引 “%.*ls” (index_...
If not specified, the database is assigned the default collation of the instance of SQL Server. A collation name cannot be specified on a database snapshot. A collation name cannot be specified with the FOR ATTACH or FOR ATTACH_REBUILD_LOG clauses. For information about how to change the ...
use Automated Solution developed by SysTools know asSQL Database Recovery Tool. A Standalone utility to Scan and fix SQL Database Table and other meta-detail such as “Tables, Triggers, Rules, Functions and Stored Procedures. This software supports Microsoft SQL Server 2019 / 2017 / 2016 / ...
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 複製 UPDATE Production.Product WITH (TABLOCK) SET ListPr...
在Microsoft SQL Server、Azure SQL Database 和 Azure Synapse Analytics 中設定資料庫選項。 如需其他 ALTER DATABASE 選項,請參閱 ALTER DATABASE。 備註 使用ALTER DATABASE 設定某些選項可能需要獨佔數據庫存取權。 如果 ALTER DATABASE 語句未及時完成,請檢查...