DROP TABLE [IF EXISTS] [db_name.]table_name; 说明:SQL中加[IF EXISTS] ,可以防止因表不存在而导致执行报错。 参数:db_name:Database名称。如果未指定,将选择当前database。table_name:需要删除的Table名称。 3、示例 以下示例演示DROP命令的使用,依次执行如下SQL语句: --
Hi Joe, You are right, MERGE is created to satisfy SQL Standard and to cover all possible matching scenarios. and it has too many options for the simplest cases. Could you please create or vote for this change on MS connect? CREATE OR REPLACE and DROP IF EXISTS are highly...
Option 4 – DROP TABLE IF EXISTS (SQL Server 2016 and up) The previous T-SQL examples will work in all supported versions. However, SQL Server 2016 introduced a simpler way of dropping a table with DROP IF EXISTS. Instead of having to look and see if whether or not the table exists w...
ms_sql:drop and create a job /*** Object: Job [syncData_23_00] Script Date: 09/30/2013 16:48:32 ***/Declare@myJobIDvarchar(256)IFEXISTS(SELECTjob_idFROMmsdb.dbo.sysjobs_viewWHEREname=N'syncData_23_00')beginSELECT@myJobID=job_idFROMmsdb.dbo.sysjobs_viewWHEREname=N'syncData_23_...
Array data type in SQL server Array's IN SQL SERVER? ASCII values for extended characters Assign empty string '' if datetime is null Assign EXEC output to Variable Assigning NULL value to column name using Case Statement of where is SQL SERVER 2008 atomic if not exists() and insert or upd...
IF NOT EXISTS (SELECT name FROM sys.filegroups WHERE name = N'NewGroup') BEGIN ALTER DATABASE AdventureWorks2022 ADD FILEGROUP NewGroup; ALTER DATABASE AdventureWorks2022 ADD FILE (NAME = File1, FILENAME = 'C:\Program Files\Microsoft SQL Server\MSSQL13.MSSQLSERVER\MSSQL\DATA\File1.ndf')...
Recreate the Index if needed To recreate the index, open the script you saved and run it. Next Steps Here are additional links to index related tips: Safely Dropping Unused SQL Server Indexes New Drop If Exists Syntax in SQL Server 2016 ...
if it does not exist.IFNOTEXISTS(SELECTnameFROMsys.filegroupsWHEREname= N'NewGroup')BEGINALTERDATABASEAdventureWorks2022ADDFILEGROUP NewGroup;ALTERDATABASEAdventureWorks2022ADDFILE(NAME= File1, FILENAME ='C:\Program Files\Microsoft SQL Server\MSSQL13.MSSQLSERVER\MSSQL\DATA\File1.ndf')TOFILEGROUP ...
51CTO博客已为您找到关于sql server DROP的相关内容,包含IT学习相关文档代码介绍、相关教程视频课程,以及sql server DROP问答内容。更多sql server DROP相关解答可以来51CTO博客参与分享和学习,帮助广大IT技术人实现成长和进步。
DROPTABLEIFEXISTSDemo.ColumnDependency; DROPTABLEIFEXISTSDemo.ParentDependency; GO /*See my tablecreate snippet https://www.red-gate.com/hub/product-learning/sql-prompt/using-sql-prompt-code-snippets-for-repetitive-tasks*/ CREATETABLEDemo.ParentDependency ...