Question

我的第一张桌子

select * 
from dbo.tblusertasks

   id   pagename              search    _update     _delete   _insert
    1   CustomerMaster          0          0           0         0
    2   OrganizationMaseter     0          0           0         0
    3   Vendor/SupplierMaster   0          0           0         0

我的第二张表

select * 
from dbo.tblpages

id  pagenameid  userid  createdby   search  _update _delete _insert
1   1             1        1          1        1       1       1
2   2             1        1          1        1       1       1

我想合并这两个，需要结果为

id  pagename               search   _update _delete _insert
1   CustomerMaster           1         1       1      1
2   OrganizationMaseter      1         1       1      1
3   Vendor/SupplierMaster    0         0       0      0

我已尝试过此查询，但无效

SELECT  
    pg.id, pg.[pagename], tblp.[search],tblp.[_update] , 
    tblp.[_delete], tblp.[_insert] 
FROM 
    tblpages pg 
LEFT JOIN 
    [tblusertasks] tblp ON tblp.pagename = pg.id 
WHERE
    tblp.userid = 1

它正在返回（我尝试了左右连接，但它仍然返回相同）：

id  pagename            search  _update _delete _insert
1   CustomerMaster         1       1       1      1
2   OrganizationMaseter    1       1       1      1

Answer 1

SIcne你说你已经尝试了LEFT和RIGHT JOIN并且没有工作改变表格arounf无济于事。你需要这样做：

SELECT pg.id,
       pg.[pagename],
       tblp.[search],
       tblp.[_update],
       tblp.[_delete],
       tblp.[_insert]
FROM [tblusertask] tblp
     LEFT JOIN tblpages pg
        ON tblp.ID = pg.pagenameid

这应该有用。

Answer 2

希望这会有所帮助...... 这使您可以灵活地按PageName ... count，sum等进行分区。

SELECT pagename,
    T.pagenameid,
    ISNULL(T.search, 0) AS search,
    ISNULL(T._update, 0) AS _update,
    ISNULL(T._delete, 0) AS _delete,
    ISNULL(T._insert,0) AS _insert
FROM
(
SELECT 
    MAX(U.ID) OVER (PARTITION BY pagename) AS pagenameid,
    MAX(U.search) OVER (PARTITION BY pagename) AS search,
    MAX(U._update)  OVER (PARTITION BY pagename) AS _update,
    MAX(U._delete)  OVER (PARTITION BY pagename) AS _delete,
    MAX(U._insert)  OVER (PARTITION BY pagename) AS _insert
FROM 
    tblusertasks U
LEFT JOIN   
    tblpages P ON U.id=P.pagenameid
)T
INNER JOIN tblusertasks UT ON UT.id=T.pagenameid

RESULT

基于Join - SQL Server 2012合并两个表

2 个答案: