SQL-Server 2014.更新連接兩個表和使用表別名

-2

我有兩個幾乎相同的表。需要更新TABLE_03每Postal時，它的NULL 有沒有ID或主鍵使用，因此我與Name列Link，並PhoneNum /（在TABLE_ALL Phone）SQL-Server 2014.更新連接兩個表和使用表別名

試過SQL連接這些：

UPDATE TABLE_03 a 
    join TABLE_ALL b 
    ON a.Link = b.Link, 
     a.Name = b.Name, 
     a.PhoneNum = b.Phone 
    SET a.Postal = b.PostalCode 
    WHERE a.Postal IS NULL;

SQL Server爲錯誤

Incorrect syntax near 'a'.

沒有別名：

UPDATE TABLE_03 
    join TABLE_ALL 
    ON TABLE_03.Link = TABLE_ALL.Link, 
     TABLE_03.Name = TABLE_ALL.Name, 
     TABLE_03.PhoneNum = TABLE_ALL.Phone 
    SET TABLE_03.Postal = TABLE_ALL.PostalCode 
    WHERE TABLE_03.Postal IS NULL;

給出錯誤：

Incorrect syntax near the keyword 'join'.

來源

2015-09-11 Kaptah

請檢查該 http://stackoverflow.com/questions/ 2044467/how-to-update-two-tables-in-one-statement-in-sql-server-2005 – iwan

[Update with two tables？]可能出現重複？（http://stackoverflow.com/questions/1068447/update-with-two-tables） –

你的語法是錯誤的，主要是JOIN ON條款。它應該像下面使用AND操作

UPDATE TABLE_03 a 
    join TABLE_ALL b 
    ON a.Link = b.Link AND 
     a.Name = b.Name AND 
     a.PhoneNum = b.Phone 
    SET a.Postal = b.PostalCode 
    WHERE a.Postal IS NULL;

通過適當SQL Server語法

UPDATE a 
SET a.Postal = b.PostalCode 
FROM TABLE_03 a 
    join TABLE_ALL b 
    ON a.Link = b.Link AND 
     a.Name = b.Name AND 
     a.PhoneNum = b.Phone 
    WHERE a.Postal IS NULL;

來源

2015-09-11 09:06:27 Rahul

試試這個

 UPDATE TABLE_03 
SET TABLE_03.Postal = TABLE_ALL.PostalCode 
from TABLE_ALL 
where TABLE_03.Link = TABLE_ALL.Link AND 
    TABLE_03.Name = TABLE_ALL.NAME AND 
    TABLE_03.PhoneNum = TABLE_ALL.Phone and 

    TABLE_03.Postal IS NULL;

來源

2015-09-11 09:04:13

試試這個：

UPDATE a 
    SET a.Postal = b.PostalCode 
    FROM TABLE_03 a 
    join TABLE_ALL b 
    ON a.Link = b.Link, 
     a.Name = b.Name, 
     a.PhoneNum = b.Phone 
    WHERE a.Postal IS NULL;

來源

2015-09-11 09:06:29 Tom

SQL-Server 2014.更新連接兩個表和使用表別名

回答

相關問題