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HomeDatabaseMysql Tutorial SQLSERVER全文搜索

SQLSERVER全文搜索 看这篇文章之前请先看一下下面我摘抄的全文搜索的MSDN资料,基本上MSDN上关于全文搜索的资料的我都copy下来了 并且非常认真地阅读和试验了一次,并且补充了一些SQL语句,这篇文章本人抽取了一些本人自认为是重点的出来 并且加入了一些自己

SQLSERVER全文搜索

看这篇文章之前请先看一下下面我摘抄的全文搜索的MSDN资料,基本上MSDN上关于全文搜索的资料的我都copy下来了

并且非常认真地阅读和试验了一次,香港服务器,并且补充了一些SQL语句,这篇文章本人抽取了一些本人自认为是重点的出来

并且加入了一些自己的内容,香港空间,补充MSDN上没有的和整理了网上关于全文搜索的资料

至于全文搜索的性能,注意事项,大家可以看我copy下来的文章

文章地址:

网上另一篇说全文搜索的也比较详细

SQL Server 全文目录相关 地址:

至于什么是全文搜索我就不说了,网上文章非常多,但是这些文章感觉总结和归纳不全,只是建立一下全文索引,但是并没有深入一些或者再整理一下





(v=SQL.105).aspx
(v=SQL.105).aspx

全文搜索的架构

先上MSDN的一幅图片

 

我画了一幅简单的图

其实全文搜索技术也有些人叫全文搜索或者叫全文索引,不过两种叫法本人都觉得是对的

MSDN中对于普通SQLSERVER和全文索引的区别

 

全文索引

普通 SQL Server 索引

每个表只允许有一个全文索引。

每个表允许有多个普通索引。

population, can be requested through either a schedule or a specific request, or can occur automatically with the addition of new data." data-guid="16d49fbbe94c83e4bf994c864a469764">将数据添加到全文索引的操作称为“填充”,可以通过计划或特定请求来请求填充,也可以在添加新数据时自动填充。

当插入、更新或删除作为其基础的数据时自动更新。

在同一个数据库内分组为一个或多个全文目录。

不分组。

 

在一张表中建立了全文索引后,你不会看到数据表中会有全文索引页面,因为MSDN说得很清楚,

因为全文索引的行以压缩格式存储在磁盘的文件系统里,以优化磁盘的使用,并且这些数据会以二进制数据的形式存储。

创建全文目录的时候会有一个选项叫你选择目录位置,全文索引就存放在这个位置

当你查询全文索引列的时候,香港虚拟主机,SQLSERVER就会扫描全文目录,去找你需要查询的记录,所以当你查看执行计划的时候会看到一个执行计划“远程扫描”

远程扫描基本上占了大头

 

全SQL建立全文搜索

在网上看到很多文章都是用SSMS来建立全文索引,本人想用全SQL的方式建立全文索引因为高手都是使用TSQL而非GUI,虽然本人不是高手o(∩_∩)o

(1)先在D盘建立一个文件夹fulltext

建立全文索引的方式有两种

.., , N

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