1、判断数据库是否存在 if exists(select * from master..sysdatabases where name=N'数据库名') print 'The database exists' --若存在则输出 --drop database '数据库名' --用于最初创建数据库 else print 'not exists' 2、判断要创建的函数名是否存在 if exists (select * from dbo.sysobjects where ...
dropdatabase[数据库名] 2 判断表是否存在 Sql代码 ifexists(select*fromsysobjectswhereid=object_id(N'[表名]')andOBJECTPROPERTY(id, N'IsUserTable')=1) droptable[表名] 3 判断存储过程是否存在 Sql代码 ifexists(select*fromsysobjectswhereid=object_id(N'[存储过程名]')andOBJECTPROPERTY(id, N'IsP...
if exists (select * from sys.databases where name = ’数据库名’) print '存在' -- drop database [数据库名] --如果存在则删除 1. 2. 2、表是否存在 if exists (select * from sysobjects where id = object_id(N’[表名]’) and OBJECTPROPERTY(id, N’IsUserTable’) = 1) print '存在...
if exists (select * from sysobjects where id = object_id(N'[表名]') and type in('S','U')) --字段 type 值应为'S' 或 'U' print '存在' else print '不存在' 3、判断存储过程 方法一: if exists (select * from sysobjects where id = object_id(N'[存储过程名]') and OBJECTPROPERT...
1 判断 数据库是否存在 Sql代码 if exists (select * from sys.databases where name = ’数据库名’) drop database [数据库名] if exists (select * from sys.databases where name = ’数据库名’) drop databa…
USEAdventureWorks2022; GO-- determines if function exists in databaseIF OBJECT_ID (N'Sales.fn_SalesByStore', N'IF') IS NOT NULL-- deletes functionDROPFUNCTIONSales.fn_SalesByStore; GO 另请参阅 DROP FUNCTION (Transact-SQL) 反馈 此页面是否有帮助?
USEAdventureWorks2022; GO-- determines if function exists in databaseIF OBJECT_ID (N'Sales.fn_SalesByStore', N'IF') IS NOT NULL-- deletes functionDROPFUNCTIONSales.fn_SalesByStore; GO 另请参阅 DROP FUNCTION (Transact-SQL) 反馈 此页面是否有帮助?
IF EXISTS (SELECTnameFROMsys.indexesWHEREname= N'FIBillOfMaterialsWithComponentID'ANDobject_id = OBJECT_ID(N'Production.BillOfMaterials'))DROPINDEXFIBillOfMaterialsWithComponentIDONProduction.BillOfMaterials; GOCREATENONCLUSTEREDINDEX[FIBillOfMaterialsWithComponentID]ONProduction.BillOfMaterials(ComponentID,...
USE master; GO IF DB_ID (N'db_sales_test') IS NOT NULL DROP DATABASE db_sales_test; GO CREATE DATABASE db_sales_test; GO USE db_sales_test; GO CREATE PARTITION FUNCTION [pf_range_fact](int) AS RANGE RIGHT FOR VALUES (20080801, 20080901, 20081001, 20081101, 20081201, 20090101); ...
must be a better way to do this. What I want to do is check real-time if various records exist in my database from a function in my C# code. What I've done is added a sqldatabase onto my page, as well as a gridview. Here is what I have done to verify if a record exist...