如何仅搜索用户书签？答案

【问题标题】：how to search user bookmark only?如何仅搜索用户书签？
【发布时间】：2013-07-04 20:58:12
【问题描述】：

我正在尝试编写 sql 查询来显示用户已添加书签的搜索抛出资源。我的问题是当用户键入关键字时，搜索将搜索网站上的所有资源，包括他的书签我希望能够搜索用户书签

SELECT
    a.Id ,
    a.summary ,
    a.pageId ,
    a.name ,
    a.createdOn ,
    a.userID ,
    Total
FROM Resources AS a
LEFT JOIN Topics_Resources AS b ON a.Id = b.ResourceID
LEFT JOIN Skills_Resources AS c ON a.Id = c.ResourceID
INNER JOIN Modules AS m ON a.ModuleId = m.ModuleID
INNER JOIN ContentItems AS ci ON m.ModuleID = ci.ModuleID
INNER JOIN Tabs AS t ON t.TabID = ci.TabID
INNER JOIN TabModules AS tb ON t.TabID = tb.TabID
INNER JOIN Bookmarks ON a.Id = Bookmarks.resourceID
INNER JOIN Bookmarks AS Bookmarks_1 ON a.Id = Bookmarks_1.resourceID
INNER JOIN
(
    SELECT
        r.Id , COUNT(l.resourceId) Total
    FROM resources r
    LEFT JOIN likes l ON r.Id = l.resourceid
    GROUP BY r.Id
)
l ON a.Id = l.Id
LEFT OUTER JOIN HtmlText AS h ON tb.ModuleID = h.ModuleID
WHERE (h.content LIKE '%winter%')
OR (t.description LIKE '%winter%')
OR (t.keywords LIKE '%winter%')
OR (a.summary LIKE '%winter%')
AND Bookmarks.userID = '695A8626-A28B-4308-AD9B-D5AC576B4E5A'
GROUP BY    a.Id ,
            a.summary ,
            a.pageId ,
            a.name ,
            a.createdOn ,
            a.userID ,
            Total
ORDER BY a.createdOn DESC

【问题讨论】：

你能澄清一下吗？您是希望用户搜索他的书签还是搜索除他的书签或其他书签之外的所有书签？
所以你写了整个查询并且不知道括号（），OR和AND的功能？您的 AND 只是将 userID 条件与您的最后一个 OR 相结合。

标签： asp.net sql sql-server-2008

【解决方案1】：

尝试将每个 OR 括在括号中

SELECT  a.Id, a.summary, a.pageId, a.name, a.createdOn,a.userID,Total
FROM         Resources AS a 
LEFT JOIN Topics_Resources AS b ON a.Id = b.ResourceID 
LEFT JOIN Skills_Resources AS c ON a.Id = c.ResourceID 
INNER JOIN Modules AS m ON a.ModuleId = m.ModuleID 
INNER JOIN ContentItems AS ci ON m.ModuleID = ci.ModuleID 
INNER JOIN Tabs AS t ON t.TabID = ci.TabID 
INNER JOIN TabModules AS tb ON t.TabID = tb.TabID 
INNER JOIN Bookmarks ON a.Id = Bookmarks.resourceID 
INNER JOIN Bookmarks AS Bookmarks_1 ON a.Id = Bookmarks_1.resourceID 
INNER JOIN (select r.Id, count(l.resourceId) Total
            from resources r
            left join likes l on r.Id = l.resourceid
            group by r.Id)  l 
    on a.Id  = l.Id 
LEFT OUTER JOIN HtmlText AS h ON tb.ModuleID = h.ModuleID 
where ((h.content like '%winter%') or ( t.description like '%winter%') or ( t.keywords like '%winter%') or ( a.summary like '%winter%'))
    and Bookmarks.userID='695A8626-A28B-4308-AD9B-D5AC576B4E5A'
GROUP BY  a.Id, a.summary, a.pageId, a.name, a.createdOn,a.userID,Total  
ORDER BY a.createdOn DESC

注意：如果您预计数据量很大，这种查询将持续数小时。你应该添加全文

【讨论】：