FreeTextTable 不返回任何记录

Question

我有一个平面表来执行全文搜索，即使是最简单的搜索也不起作用。我尝试了很多东西，我得到了相同的结果。然而令人惊讶的是，类似的全文搜索也适用于同一数据库中的其他表。

下面是我的表格结构，我还添加了全文索引详细信息以供快速参考。

以下是我的查询的搜索结果，我尝试了多种方法，但没有任何运气，只有当我提供列中的确切值时，查询才有效。 即使我在查询中使用一列即 Fname，搜索结果也是相同的。

我可能遗漏了一些基本的东西，但我不确定那是什么。下面是它的创建表脚本。

CREATE TABLE [dbo].[SampleTable](
    [ID] [int] IDENTITY(1,1) NOT NULL,
    [CID] [int] NOT NULL,
    [VID] [int] NOT NULL,
    [FID] [int] NOT NULL,
    [TID] [int] NOT NULL,
    [FName] [nvarchar](200) NOT NULL,
    [IName] [nvarchar](200) NOT NULL,
    [Contents] [nvarchar](max) NOT NULL,
    [LatestVersion] [int] NOT NULL,
 CONSTRAINT [PK_SampleTable] PRIMARY KEY CLUSTERED 
(
    [ID] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY] TEXTIMAGE_ON [PRIMARY]

insert into SampleTable (CID, VID, FID, TID, FName, IName, Contents, LatestVersion) values (-1,1,1,1,'climate.c','climate_validate','',5);
insert into SampleTable (CID, VID, FID, TID, FName, IName, Contents, LatestVersion) values (-1,1,1,1,'flowrout.c','validateTreeLayout','',5);
insert into SampleTable (CID, VID, FID, TID, FName, IName, Contents, LatestVersion) values (-1,1,1,1,'flowrout.c','validateGeneralLayout','',5);
insert into SampleTable (CID, VID, FID, TID, FName, IName, Contents, LatestVersion) values (-1,1,1,1,'gage.c','gage_validate','',5);
insert into SampleTable (CID, VID, FID, TID, FName, IName, Contents, LatestVersion) values (-1,1,1,1,'gwater.c','gwater_validateAquifer','',5);
insert into SampleTable (CID, VID, FID, TID, FName, IName, Contents, LatestVersion) values (-1,1,1,1,'gwater.c','gwater_validate','',5);
insert into SampleTable (CID, VID, FID, TID, FName, IName, Contents, LatestVersion) values (-1,1,1,1,'lid.c','lid_validate','',5);
insert into SampleTable (CID, VID, FID, TID, FName, IName, Contents, LatestVersion) values (-1,1,1,1,'lid.c','validateLidProc','',5);
insert into SampleTable (CID, VID, FID, TID, FName, IName, Contents, LatestVersion) values (-1,1,1,1,'lid.c','validateLidGroup','',5);
insert into SampleTable (CID, VID, FID, TID, FName, IName, Contents, LatestVersion) values (-1,1,1,1,'link.c','link_validate','',5);
insert into SampleTable (CID, VID, FID, TID, FName, IName, Contents, LatestVersion) values (-1,1,1,1,'link.c','conduit_validate','',5);
insert into SampleTable (CID, VID, FID, TID, FName, IName, Contents, LatestVersion) values (-1,1,1,1,'link.c','pump_validate','',5);
insert into SampleTable (CID, VID, FID, TID, FName, IName, Contents, LatestVersion) values (-1,1,1,1,'link.c','orifice_validate','',5);
insert into SampleTable (CID, VID, FID, TID, FName, IName, Contents, LatestVersion) values (-1,1,1,1,'link.c','weir_validate','',5);
insert into SampleTable (CID, VID, FID, TID, FName, IName, Contents, LatestVersion) values (-1,1,1,1,'node.c','node_validate','',5);
insert into SampleTable (CID, VID, FID, TID, FName, IName, Contents, LatestVersion) values (-1,1,1,1,'node.c','divider_validate','',5);
insert into SampleTable (CID, VID, FID, TID, FName, IName, Contents, LatestVersion) values (-1,1,1,1,'project.c','project_validate','',5);
insert into SampleTable (CID, VID, FID, TID, FName, IName, Contents, LatestVersion) values (-1,1,1,1,'rdii.c','validateRdii','',5);
insert into SampleTable (CID, VID, FID, TID, FName, IName, Contents, LatestVersion) values (-1,1,1,1,'shape.c','shape_validate','',5);
insert into SampleTable (CID, VID, FID, TID, FName, IName, Contents, LatestVersion) values (-1,1,1,1,'snow.c','snow_validateSnowmelt','',5);
insert into SampleTable (CID, VID, FID, TID, FName, IName, Contents, LatestVersion) values (-1,1,1,1,'subcatch.c','subcatch_validate','',5);
insert into SampleTable (CID, VID, FID, TID, FName, IName, Contents, LatestVersion) values (-1,1,1,1,'table.c','table_validate','',5);
insert into SampleTable (CID, VID, FID, TID, FName, IName, Contents, LatestVersion) values (-1,1,1,1,'transect.c','transect_validate','',5);
insert into SampleTable (CID, VID, FID, TID, FName, IName, Contents, LatestVersion) values (-1,1,1,1,'climate.c','climate_validate','',5);
insert into SampleTable (CID, VID, FID, TID, FName, IName, Contents, LatestVersion) values (-1,1,1,1,'flowrout.c','validateTreeLayout','',5);
insert into SampleTable (CID, VID, FID, TID, FName, IName, Contents, LatestVersion) values (-1,1,1,1,'flowrout.c','validateGeneralLayout','',5);
insert into SampleTable (CID, VID, FID, TID, FName, IName, Contents, LatestVersion) values (-1,1,1,1,'gage.c','gage_validate','',5);
insert into SampleTable (CID, VID, FID, TID, FName, IName, Contents, LatestVersion) values (-1,1,1,1,'gwater.c','gwater_validateAquifer','',5);
insert into SampleTable (CID, VID, FID, TID, FName, IName, Contents, LatestVersion) values (-1,1,1,1,'gwater.c','gwater_validate','',5);
insert into SampleTable (CID, VID, FID, TID, FName, IName, Contents, LatestVersion) values (-1,1,1,1,'lid.c','lid_validate','',5);
insert into SampleTable (CID, VID, FID, TID, FName, IName, Contents, LatestVersion) values (-1,1,1,1,'lid.c','validateLidProc','',5);
insert into SampleTable (CID, VID, FID, TID, FName, IName, Contents, LatestVersion) values (-1,1,1,1,'lid.c','validateLidGroup','',5);
insert into SampleTable (CID, VID, FID, TID, FName, IName, Contents, LatestVersion) values (-1,1,1,1,'link.c','link_validate','',5);
insert into SampleTable (CID, VID, FID, TID, FName, IName, Contents, LatestVersion) values (-1,1,1,1,'link.c','conduit_validate','',5);
insert into SampleTable (CID, VID, FID, TID, FName, IName, Contents, LatestVersion) values (-1,1,1,1,'link.c','pump_validate','',5);
insert into SampleTable (CID, VID, FID, TID, FName, IName, Contents, LatestVersion) values (-1,1,1,1,'link.c','orifice_validate','',5);
insert into SampleTable (CID, VID, FID, TID, FName, IName, Contents, LatestVersion) values (-1,1,1,1,'link.c','weir_validate','',5);
insert into SampleTable (CID, VID, FID, TID, FName, IName, Contents, LatestVersion) values (-1,1,1,1,'node.c','node_validate','',5);
insert into SampleTable (CID, VID, FID, TID, FName, IName, Contents, LatestVersion) values (-1,1,1,1,'node.c','divider_validate','',5);
insert into SampleTable (CID, VID, FID, TID, FName, IName, Contents, LatestVersion) values (-1,1,1,1,'project.c','project_validate','',5);
insert into SampleTable (CID, VID, FID, TID, FName, IName, Contents, LatestVersion) values (-1,1,1,1,'rdii.c','validateRdii','',5);
insert into SampleTable (CID, VID, FID, TID, FName, IName, Contents, LatestVersion) values (-1,1,1,1,'shape.c','shape_validate','',5);
insert into SampleTable (CID, VID, FID, TID, FName, IName, Contents, LatestVersion) values (-1,1,1,1,'snow.c','snow_validateSnowmelt','',5);
insert into SampleTable (CID, VID, FID, TID, FName, IName, Contents, LatestVersion) values (-1,1,1,1,'subcatch.c','subcatch_validate','',5);
insert into SampleTable (CID, VID, FID, TID, FName, IName, Contents, LatestVersion) values (-1,1,1,1,'table.c','table_validate','',5);
insert into SampleTable (CID, VID, FID, TID, FName, IName, Contents, LatestVersion) values (-1,1,1,1,'transect.c','transect_validate','',5);

如果您需要更多详细信息，请告诉我。

更新 1： 因此，进一步挖掘我发现了与我类似的问题。

• sql server freetexttable partial words
• FreeTextTable Ranked Search Not working for word

因此，如果正确理解了这些 URL，那么 FreeTextTable 不适用于一个单词，这肯定不是真的，因为我在另一个表上使用一个单词查询并且它工作得很好。

Answer 1

您正在尝试执行 FreeTextTable 不支持的子字符串匹配。而是使用带有通配符的ContainsTable。

select * from ContainsTable(SampleTable, ([FName],[IName]), 'clima*')

此搜索将匹配以下字符串：

• “climate.c”
• “climate.c 等等”
• “等等等等气候.c”
• “等等等等气候.c 等等等等”
• “气候”
• “等等等等气候”

但它不会匹配：

• “xx气候”

仅供参考，FreeTextTable 用于自然语言类型搜索 - 同义词、单数/复数形式、变位匹配，并且只需要在搜索中匹配 1 个术语。 ContainsTable 匹配精确的单词（无同义词等），允许使用布尔运算符（AND、OR、NOT），支持通配符（*、?），并且可以执行邻近搜索（word2 的 N 个单词中的 word1）。