Question

我正在尝试进行全文搜索但是在实现它时遇到了问题。我有一个可以有多个“标题”的对象。我有一个存储过程，它采用语言和国家/地区，并根据本地化返回具有最佳“标题”的标准化结果。我希望能够做的是在“标题”表上执行全文搜索，该表将搜索所有行，但只返回标准化的默认标题。

为了获得标准化结果，我有类似

的内容

NORMALIZING STATEMENT

SELECT MainObject.*, Title.Name, Description.Name
FROM MainObject
OUTER APPLY
(
    SELECT TOP 1 Title.Name
    FROM Title
    WHERE Title.MainObject_ID = MainObject.ID AND Title.Language = @language
    ORDER BY Title.[Default] DESC
)
OUTER APPLY
(
    SELECT TOP 1 Description.Name
    FROM Description
    WHERE Description.MainObject_ID = MainObject.ID AND Description.Language = @language
    ORDER BY Description.[Default] DESC
)

假设一个对象有3个标题，Alpha，Bravo和Charlie，Alpha是默认标题。我希望能够对Bravo进行全文搜索。找到Bravo链接到的对象，但使用上述语句进行标准化。 I.E搜索“Bravo”和“Alpha”作为Title.Name返回。

我能想到的唯一方法是首先执行搜索，例如

FULL-TEXT STATEMENT

SELECT Title.MainObject_ID, MAX(KEY_TBL.RANK)
FROM Title
INNER JOIN
FREETEXTTABLE(Title,Name,'Some Search') AS KEY_TBL
ON Title.ID = KEY_TBL.[KEY]
WHERE KEY_TBL.RANK >= 50
GROUP BY Title.MainObjectID, KEY_TBL.RANK
ORDER BY KEY_TBL.RANK DESC

返回MainObjects列表。然后我可以通过top语句来运行它们。有没有办法将两者结合在一个更优雅的庄园中，从而获得更好的表现？

更新：我可以在全文语句中执行WHERE IN，但我不确定如何将RANK返回到主语句，这样我就可以通过降序RANK来排序最终输出。

NORMALIZING STATEMENT
WHERE MainObject.ID IN
(
    FULL-TEXT STATEMENT
)

Answer 1

我最终到达那里......我开始在“标题”表上进行全文搜索，然后将其连接到MainObject表并从那里继续。我必须按照我想要选择的所有内容进行分组。

SELECT MainObject.ID, MAX(KEY_TBL.RANK) AS IndexRank, MainObject.OtherColumns, Title.Name, Description.Name
FROM Title AS FT_TBL
INNER JOIN
FREETEXTTABLE(Title,Name,'Some Search') AS KEY_TBL
ON FT_TBL.ID = KEY_TBL.[KEY]
INNER JOIN
MainObject ON FT_TBL.MainObjectID = MainObject.ID
OUTER APPLY
(
    SELECT TOP 1 Title.Name
    FROM Title
    WHERE Title.MainObject_ID = MainObject.ID AND Title.Language = @language
    ORDER BY Title.[Default] DESC
)
OUTER APPLY
(
    SELECT TOP 1 Description.Name
    FROM Description
    WHERE Description.MainObject_ID = MainObject.ID AND Description.Language = @language
    ORDER BY Description.[Default] DESC
)
GROUP BY MainObject.ID, KEY_TBL.RANK, MainObject.OtherColumns, Title.Name, Description.Name
ORDER BY IndexRank desc

将SQL FullText Search添加到现有SELECT语句的问题

1 个答案: