Sql server 基于联接合并两个表-SQL Server 2012

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

我的第二张桌子

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，并需要作为结果

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

我尝试过这个查询，但它不起作用

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left和right join，但仍然返回相同的结果）：

---

SIcne你说你已经尝试了左连接和右连接，但是它不起作用。更改表arounf也没用。您需要执行以下操作：

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。

希望这有助于。。。 这使您可以灵活地按页面名进行分区。。。计数、总数等

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

结果

---

删除条件tblp.userid=1的位置上的零件不应该是“on tblp.id=pg.id”吗？Pagename包含字符串和pg.id号。这可能是问题所在……我尝试过，但当我添加where条件时，它不会返回所需的输出以及您在帖子中的集合，您不应该需要where子句。它用于将来的使用，就像当我有多个用户时，然后Ex userid 2、3等，只要用户在一个表中，而不是在另一个表中，联接将返回该值。这个连接当前从tblpages中回调tblusertask中的所有内容，并且只回调与tblusertask中匹配的值key@AkhilRJ这与您想要的输出完全匹配。。。您能解释一下缺少了什么吗？search、update、delete和insert列是位类型的，因此MAX（）对它无效

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