Question

我正在使用CONTAINSTABLE来搜索两个表格列。一旦搜索包含像''''这样的'a'这样的小词，即使它们实际存在于列中，搜索也不会返回任何结果。

快速举例。被搜索的列包含文本。 '系统需要升级'

以下SQL返回0行

SELECT     * FROM Incident WHERE (TicketNumber IN (
SELECT TicketNumber FROM         [Action] FT_TBL INNER JOIN
CONTAINSTABLE(Action, Text, '"system" AND "needs" AND "to" AND "upgraded" AND NOT "Search Summary"') KEY_TBL ON FT_TBL.ID = KEY_TBL.[KEY]
UNION
SELECT TicketNumber FROM [Incident] FT_TBL INNER JOIN
CONTAINSTABLE(Incident, Subject, '"system" AND "needs" AND "to" AND "upgraded"') AS KEY_TBL ON FT_TBL.TicketNumber = KEY_TBL.[KEY]))

一旦'to'被省略，它就可以正常工作：

SELECT     * FROM Incident WHERE (TicketNumber IN (
SELECT TicketNumber FROM         [Action] FT_TBL INNER JOIN
CONTAINSTABLE(Action, Text, '"system" AND "needs" AND "upgraded" AND NOT "Search Summary"') KEY_TBL ON FT_TBL.ID = KEY_TBL.[KEY]
UNION
SELECT TicketNumber FROM [Incident] FT_TBL INNER JOIN
CONTAINSTABLE(Incident, Subject, '"system" AND "needs" AND "upgraded"') AS KEY_TBL ON FT_TBL.TicketNumber = KEY_TBL.[KEY]))

CONTAINSTABLE如何与这些较小的单词一起使用，还是应该完全省略？如果这些较小的单词在搜索中实际上有意义，那么它们如何被包含在搜索中？

Answer 1

这些不是“小词”，这些是停止列表中的常用词。他们被忽略了。

请参阅BOL上的Stopwords and Stoplists。

Answer 2

有关创建和使用自定义全文停止列表的信息，请参阅the end of my answer。我查了一下，空的一个你的查询用“to”，“be”，“the”，“for”等等。

更新：

SQL Server 2005应该有MSSQL \ FTData \ noiseENG.txt 我建议您查看question "Noise Words in Sql Server 2005 Full Text Search"

的答案

CONTAINSTABLE查询无法识别小词

2 个答案: