我想在SQL Server 2008中使用INNER JOIN删除。
但我得到了这个错误:
消息156,级别15,状态1,第15行关键字“INNER”附近的语法不正确。
我的代码:
DELETE
FROM WorkRecord2
INNER JOIN Employee
ON EmployeeRun=EmployeeNo
WHERE Company = '1'
AND Date = '2013-05-06'
我想在SQL Server 2008中使用INNER JOIN删除。
但我得到了这个错误:
消息156,级别15,状态1,第15行关键字“INNER”附近的语法不正确。
我的代码:
DELETE
FROM WorkRecord2
INNER JOIN Employee
ON EmployeeRun=EmployeeNo
WHERE Company = '1'
AND Date = '2013-05-06'
当前回答
您甚至可以执行子查询。喜欢下面的代码:
DELETE FROM users WHERE id IN(
SELECT user_id FROM Employee WHERE Company = '1' AND Date = '2013-05-06'
)
其他回答
您甚至可以执行子查询。喜欢下面的代码:
DELETE FROM users WHERE id IN(
SELECT user_id FROM Employee WHERE Company = '1' AND Date = '2013-05-06'
)
另一种方法是使用CTE:
;WITH cte
AS (SELECT *
FROM workrecord2 w
WHERE EXISTS (SELECT 1
FROM employee e
WHERE employeerun = employeeno
AND company = '1'
AND date = '2013-05-06'))
DELETE FROM cte
注意:当您想要删除时,我们不能在CTE中使用JOIN。
这是我的SQL Server版本
DECLARE @ProfileId table(Id bigint)
DELETE FROM AspNetUsers
OUTPUT deleted.ProfileId INTO @ProfileId
WHERE Email = @email
DELETE FROM UserProfiles
WHERE Id = (Select Id FROM @ProfileId)
尝试此查询:
DELETE WorkRecord2, Employee
FROM WorkRecord2
INNER JOIN Employee ON (tbl_name.EmployeeRun=tbl_name.EmployeeNo)
WHERE tbl_name.Company = '1'
AND tbl_name.Date = '2013-05-06';
在SQL Server Management Studio中,我可以轻松创建SELECT查询:
SELECT Contact.Naam_Contactpersoon, Bedrijf.BedrijfsNaam, Bedrijf.Adres, Bedrijf.Postcode
FROM Contact
INNER JOIN Bedrijf ON Bedrijf.IDBedrijf = Contact.IDbedrijf
我可以执行它,我的所有联系人都会显示出来。
现在将SELECT更改为DELETE:
DELETE Contact
FROM Contact
INNER JOIN Bedrijf ON Bedrijf.IDBedrijf = Contact.IDbedrijf
您在SELECT语句中看到的所有记录都将被删除。
您甚至可以使用相同的过程创建更困难的内部联接,例如:
DELETE FROM Contact
INNER JOIN Bedrijf ON Bedrijf.IDBedrijf = Contact.IDbedrijf
INNER JOIN LoginBedrijf ON Bedrijf.IDLoginBedrijf = LoginBedrijf.IDLoginBedrijf