小编Cod*_*ior的帖子

我经常使用如下查询:

SELECT *
FROM   ThisTable
       OUTER APPLY (SELECT (SELECT SomeField + ' ' AS [data()]
                            FROM   SomeTable
                            WHERE  SomeTable.ID = ThisTable.ID
                            FOR XML PATH ('')) AS ConcatenatedSomeField) A 

我经常希望从这个表中获得多个连接的连接字段,而不是只有一个.我可以逻辑地这样做:

SELECT *
FROM   ThisTable
       OUTER APPLY (SELECT (SELECT SomeField + ' ' AS [data()]
                            FROM   SomeTable
                            WHERE  SomeTable.ID = ThisTable.ID
                            FOR XML PATH ('')) AS ConcatenatedSomeField) A
       OUTER APPLY (SELECT (SELECT SomeField2 + ' ' AS [data()]
                            FROM   SomeTable
                            WHERE  SomeTable.ID = ThisTable.ID
                            FOR XML PATH ('')) AS ConcatenatedSomeField2) B
       OUTER …