SQL Server ContainsTable 不返回以“N”开头的单词的结果答案

【问题标题】：SQL Server ContainsTable not returning result with word that start with "N"SQL Server ContainsTable 不返回以“N”开头的单词的结果
【发布时间】：2019-02-01 11:39:42
【问题描述】：

我想使用 NEAR 语法进行查询以检索人员。当我搜索第二个单词中包含字母 N 的任何文本时，结果始终为空。

我在桌子上登记了两个人 Ricardo，“Ricardo Mova”和“Ricardo Nova”。如果搜索 'Ricardo NEAR "Mova*"' 就可以了，但不能搜索 'Ricardo NEAR 'Nova*'

编辑

4 条记录（Ricardo Nova、Ricardo Novais、Ricardo Novo、Ricardo Nunes）
查询 'Ricardo NEAR 'N*'
结果仅显示“Ricardo Novais”和“Ricardo Nunes”。

表格：

CREATE TABLE [dbo].[EntitySearch](
    [IdEntity] [int] NOT NULL,
    [Name] [nvarchar](max) NULL,
    [Accessibility] [bit] NOT NULL,
    [Document] [nvarchar](max) NULL,
    [Email] [nvarchar](max) NULL,
    [Phone] [nvarchar](max) NULL,
    [Phone2] [nvarchar](max) NULL,
    [Birthdate] [datetime] NULL,
    [Gender] [int] NULL,
    [IsAct] [bit] NOT NULL,
    [Discriminator] [int] NOT NULL,
 CONSTRAINT [PK_dbo.EntitySearch] PRIMARY KEY CLUSTERED 
(
    [IdEntity] 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]

CREATE FULLTEXT CATALOG main_catalog;

完整索引

CREATE FULLTEXT INDEX ON dbo.EntitySearch 
        (       [Name] 
            Language[Brazilian],  
                [Document]
            Language[Brazilian],
                [Email]
            Language[Brazilian], 
                [Phone]
            Language[Brazilian],
                [Phone2]
            Language[Brazilian] )  
KEY INDEX [PK_dbo.EntitySearch] ON main_catalog;

查询：

SELECT top 10
    FT_TBL.[IdEntity]
    ,FT_TBL.[Name]
    ,FT_TBL.[Accessibility]
    ,FT_TBL.[Document]
    ,FT_TBL.[Email]
    ,FT_TBL.[Phone]
    ,FT_TBL.[Phone2]
    ,FT_TBL.[Birthdate]
    ,FT_TBL.[Gender]
    ,FT_TBL.[IsAct]
    ,FT_TBL.[Discriminator]
    FROM [EntitySearch] AS FT_TBL INNER JOIN  
    CONTAINSTABLE ([EntitySearch], [Name], 'Ricardo NEAR "Nova*"' ) AS KEY_TBL  
    ON FT_TBL.[IdEntity] = KEY_TBL.[KEY]  
    WHERE
        FT_TBL.[IsAct] = 1 
    and FT_TBL.[Discriminator] = 2
    and KEY_TBL.RANK > 10  
    ORDER BY KEY_TBL.RANK DESC, FT_TBL.[Name]

我希望显示 1 条记录，但没有显示。谢谢！

编辑：解决方法

我使用葡萄牙语删除并重新创建了全文索引。问题已经解决了，所以我猜“错误”是关于巴西语言的索引。

【问题讨论】：

标签： sql-server full-text-search full-text-indexing

【解决方案1】：

这不是BUG。

每个语言都有你的自停用词列表，这意味着有些词与索引搜索无关。

https://docs.microsoft.com/en-us/sql/relational-databases/search/configure-and-manage-stopwords-and-stoplists-for-full-text-search?view=sql-server-2017

SELECT * 
FROM sys.fulltext_system_stopwords 
WHERE language_id = 1046 --Brazilian language ID

所以，就我而言，我做了一个算法，在发送之前更正搜索查询。

【讨论】：