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语法: MERGE [ INTO ] <target_table> [ [ AS ] table_alias ] USING <table_source> [ [ AS ] table_alias ] ON <merge_search_condition> [ WHEN MATCHED [ AND 阅读全文
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1.首先创建临时表模拟数据 1 IF OBJECT_ID('tempdb.dbo.#Company') IS NOT NULL DROP TABLE #Company; 2 CREATE TABLE #Company 3 ( 4 CompanyID INT NOT NULL 5 PRIMARY KE 阅读全文
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直接上语句 1 IF OBJECT_ID('tempdb.dbo.#Contact') IS NOT NULL DROP TABLE #Contact; 2 CREATE TABLE #Contact 3 ( 4 EmployeeID INT NOT NULL, 5 PhoneNumber1 BIG 阅读全文
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1.原始查询 SELECT s.Name AS ShiftName, h.BusinessEntityID, d.Name AS DepartmentName FROM HumanResources.EmployeeDepartmentHistory h INNER JOIN HumanResour 阅读全文
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多语句表值函数顾名思义是返回了一张表,可以传入多个参数 1.定义 1 Use AdventureWorks2014; 2 go 3 if exists(select * from sys.objects where name='udf_SEL_SalesQuota') 4 drop function 阅读全文