多部分标识符无法绑定

Question

$query = "SELECT cc.countryCode, m.stfMode 
          FROM test t LEFT JOIN countryCode cc ON t.idcountryCode=cc.idcountryCode LEFT JOIN mode m ON t.idmode=m.idmode 
          WHERE t.idtest=".$idtest;

When i am executing the above query I am getting the below error

Warning: mssql_query(): message: The multi-part identifier ".countryCode" could not be bound.

Please help....

Answer 1

使用Select cc.idcountryCode而不是SELECT cc.countryCode

Answer 2

In your Query countryCode is Used for both Tablename and a Column in that table. Please change the tablename or that ColumnName of countryCode Table

Answer 3

Your SQL should look like below

SELECT 
cc.idcountryCode, m.stfMode 
FROM test t 
LEFT JOIN countryCode cc 
ON t.idcountryCode=cc.idcountryCode 
LEFT JOIN mode m ON t.idmode=m.idmode 

WHERE t.idtest