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”...
In MySQL it is pretty easy to drop a table if it exists already. In Oracle and Microsoft’s SQL Server it is a little more complicated. Today I want to present you the solutions for these two DBMS’. MySQL: DROP TABLE IF EXISTS [table_name] Oracle: BEGIN EXECUTE IMMEDIATE 'DROP TABLE...
if v_cnt>0 then execute immediate 'drop table ' || TAB_NAME_IN ||' purge'; ...
Oracle: BEGIN EXECUTE IMMEDIATE 'DROP TABLE [table_name]'; EXCEPTION WHEN OTHERS THEN NULL;END; SQL Server: IF EXISTS ( SELECT TABLE_NAME FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME = '[table_name]')DROP TABLE [table_name]
原文:SQL Server 2016新特性:DROP IF EXISTS 在我们写T-SQL要删除某个对象(表、存储过程等)时,一般会习惯先用IF语句判断该对象是否存在,然后DROP,比如: 旧版本: IF OBJECT_ID('dbo.PERSON','U') IS NOT NULL DROP TABLE PERSON IF EXISTS (SELECT * FROM sys.objects where name = 'PERSON')...
IF EXISTS Applies to: SQL Server ( SQL Server 2016 (13.x) through current version). Conditionally drops the table only if it already exists. schema_name Is the name of the schema to which the table belongs. table_name Is the name of the table to be removed. Remarks DROP TABLE can't...
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 ...
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...
From SQL Server 2016 CTP3 you can use new DIE statements instead of big IF wrappers, e.g.:scroll Copy DROP TABLE IF EXISTS dbo.Product DROP TRIGGER IF EXISTS trProductInsert If the object does not exists, DIE will not fail and execution will continue. Currently, the fol...
In SQL Server 2016 CTP3 objects can DIE (DROP IF EXISTS)Do you like to write following conditional DROP statements:scroll 复制 IF OBJECT_ID('dbo.Product, 'U') IS NOT NULL DROP TABLE dbo.Product; IF EXISTS (SELECT * FROM sys.triggers WHERE name = 'trProductInsert') DR...