在SQL Server 中,DROP TABLE IF EXISTS 语句用于在表存在时删除表,如果该表不存在,则不会引发错误。以下是关于如何在 SQL Server 中使用 DROP TABLE IF EXISTS 语句的详细解答: 1. SQL Server 支持情况SQL Server 2016 及更高版本直接支持 DROP TABLE IF EXISTS ...
描述信息 使用 "DROP TABLE IF EXISTS" 语句删除表格 section 结束 描述信息 完成操作,关闭数据库连接 步骤一:连接到 SQL Server 数据库 首先,我们需要连接到 SQL Server 数据库。打开 SQL Server Management Studio (SSMS),在“Connect to Server” 窗口中填写正确的服务器名称和身份验证选项,然后点击 “Connect”...
drop database [数据库名] 2 判断表是否存在 Sql代码 if exists (select * fromsysobjectswhere id = object_id(N’[表名]’) andOBJECTPROPERTY(id, N’IsUserTable’) = 1) drop table [表名] if exists (select * from sysobjects where id = object_id(N’[表名]’) and OBJECTPROPERTY(id, N...
drop table #myTempName--Brad (My Blog)Tuesday, November 3, 2015 11:23 AM | 3 votesIf you install SQL Server 2016 you can use DROP TABLE IF EXISTS namehttp://blogs.msdn.com/b/sqlserverstorageengine/archive/2015/11/03/drop-if-exists-new-thing-in-sql-server-2016.aspxIt will be in ...
Sql代码 if object_id(’tempdb..#临时表名’) is not null drop table #临时表名 if object_id(’tempdb..#临时表名’) is not null drop table #临时表名 5 判断视图是否存在 Sql代码 --SQL Server 2000 IF EXISTS (SELECT * FROM sysviews WHERE object_id = ’[dbo].[视图名]’ ...
Sql代码 if object_id(’tempdb..#临时表名’) is not null drop table #临时表名 if object_id(’tempdb..#临时表名’) is not null drop table #临时表名 5 判断视图是否存在 Sql代码 --SQL Server 2000 IF EXISTS (SELECT * FROM sysviews WHERE object_id = ’[dbo].[视图名]’ ...
DROP TABLE IF EXISTS [table_name] Oracle: BEGIN EXECUTE IMMEDIATE 'DROP TABLE [table_name]'; EXCEPTION WHEN OTHERS THEN NULL; END; 1. SQL Server: IF EXISTS ( SELECT TABLE_NAME FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME = '[table_name]') DROP TABLE [table_name] ...
MySQL: DROP TABLE IF EXISTS [table_name] Oracle: BEGIN EXECUTE IMMEDIATE 'DROP TABLE [table_name]'; EXCEPTION WHEN OTHERS THEN NULL;END; SQL Server: IF EXISTS ( SELECT TABLE_NAME FROM INFORMATION ...
DROPobject_typeIFEXISTSobject_name 能够用于DROP的object_type，如Tables, Database, Function, Trigger, Stored Procedure, Column, User, Type, View, Schema，皆可套用,比如：ALTER TABLE PERSONDROP COLUMN If EXISTS NAME SQL Server 2016新特性：DROP IF EXISTS 标签：basesysges.netschfunctionname...
Table.DropIfExists Method Reference Feedback Namespace: Microsoft.SqlServer.Management.Smo Assembly: Microsoft.SqlServer.Smo.dll Package: Microsoft.SqlServer.SqlManagementObjects v160.2004021.0 Drops the object with IF EXISTS option. If object is invalid for drop function will return without exception. ...