The solution is to add conditional logic to your T-SQL to check if the specified table exists before trying to drop the table. If it exists, you drop the table, if it doesn’t exist you can skip the DROP TABLE.
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”...
Tables：表Database：数据库Function：函数Trigger：触发器Stored Procedure：存储过程Column：列User：用户Type：类型View：视图Schema：架构示例：删除列示例：ALTER TABLE PERSON DROP COLUMN IF EXISTS NAME。这表明如果PERSON表中存在名为NAME的列，则将其删除；如果不存在，则不执行任何操作且不引发错误。...
一般drop table if exists是数据库里面的，后面接表名，如：drop table if exists xxx_book 其意思是：如果数据库中存在xxx_book表，就把它从数据库中drop掉。备份sql中一般都有这样的语句，如果是数据库中有这个表，先drop掉，然后create表，然后再进行数据插入。数据库(Database)是按照数据结构来组...
Using the DROP IF EXISTS method before SQL Server 2016 required writing lengthy IF statement wrappers code. Drop table if exists The prior method of dropping a table is as follows. If we are using SQL Server 2015 or earlier than we need to execute the following bunch of code. ...
GO DROP TYPE IF EXISTS dbo.typeTableC_mem; GO --- End memory-optimized. --- --- Start traditional on-disk. PRINT ''; PRINT '--- Next, tempdb based, slower. ---';DROPTYPEIFEXISTSdbo.typeTableC_tempdb; GOCREATETYPEdbo.typeTableC_tempdb-- !! Trad...
USE[TutorialDB]; GO-- Create a new table called 'Customers' in schema 'dbo'-- Drop the table if it already existsIF OBJECT_ID('dbo.Customers', 'U') IS NOT NULLDROPTABLEdbo.Customers; GO-- Create the table in the specified schemaCREATETABLEdbo.Customers ( CustomerIdINTNOTNULLPRIMARYKEY...
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 ...
在SQL中,您可以使用IF EXISTS子句与DROP语句结合,以确保在尝试删除一个不存在的对象时不会引发错误 -- 创建一个名为example_table的表 CREATE TABLE IF NOT EXISTS example_table ( id INT PRIMARY KEY, name VARCHAR(255) ); -- 使用IF EXISTS删除表 DROP TABLE IF EXISTS example_table; 复制代码 在这个...
DROP TABLE [dbo].[MyTable3]; GO As before, we get an error that shows us the table is no longer there trying when we try to select from it. SELECT [Col1] FROM [dbo].[MyTable3]; SQL Drop Table Syntax Within a Database if Table is Owned by the dbo Schema ...