Question

我在SQL Server中有一个简单的表（我使用的是2008 R2）：

Sites ( SiteId, Name )

说我有以下数据：

-----------------------------------------
- SiteId - Name                         -
-----------------------------------------
-      1 - Foo Bar Baz                  -
-      2 - Qux Tar                      -
-      3 - Contoso                      -
-----------------------------------------

我想允许用户搜索“baz foo”并返回第1行。我希望SQL Server中断输入字符串并仅返回列值与所有条件匹配的行。 / p>

逻辑上，这将是这样的：

function Search(query) {
    query = query.Split(" ");
    sql = "SELECT ..."
    foreach(term in query) {
        sql += "WHERE Name LIKE " + term + " AND ";
    }
    executeSql( sql );
}

据我所知，T-SQL使得处理数组变得非常困难，但是肯定必须有一些内置的构造来执行标记化/术语匹配吗？

Answer 1

好吧，要查找数据库中的任何值，请查看此处：http://plixa.nl/find-any-value-in-a-database/它包含一个可以使用的脚本！

Answer 2

创建自定义函数以构建SELECT语句

CREATE FUNCTION [dbo].[FINDWORDS](@SEARCHTERMS VARCHAR(150), @TABLE VARCHAR(100))
RETURNS VARCHAR(200)

AS

BEGIN

DECLARE @CURRENTCOUNT AS INT
DECLARE @MAXCOUNT AS INT
DECLARE @SEARCHSTATEMENT AS VARCHAR(200)
DECLARE @CURRENTITEM AS VARCHAR(50)
DECLARE @WORDS TABLE (ROWNUMBER INT, ITEMS VARCHAR(50))

INSERT INTO @WORDS(ROWNUMBER, ITEMS)
SELECT ROWNUMBER = ROW_NUMBER() OVER(ORDER BY items), items
FROM dbo.splitfn(@SEARCHTERMS, ' ')

SET @CURRENTCOUNT = 1
SET @MAXCOUNT = (SELECT MAX(ROWNUMBER) FROM @WORDS)
SET @SEARCHSTATEMENT = 'SELECT SiteId, Name 
                        INTO #MYTABLE
                        FROM ' + @TABLE + ' WHERE Name LIKE ''%' 

WHILE(@CURRENTCOUNT <= @MAXCOUNT)
    BEGIN
        IF @CURRENTCOUNT > 1
            BEGIN
                SET @SEARCHSTATEMENT = @SEARCHSTATEMENT + ' AND NAME LIKE ''%'
            END
        SET @CURRENTITEM = (SELECT items 
                            FROM @WORDS 
                            WHERE ROWNUMBER = @CURRENTCOUNT)
        SET @SEARCHSTATEMENT = @SEARCHSTATEMENT + @CURRENTITEM + '%'''
        SET @CURRENTCOUNT = @CURRENTCOUNT + 1
    END

RETURN @SEARCHSTATEMENT

END

然后创建一个调用SELECT语句的过程（因为我们不能在函数中执行SQL字符串）

CREATE PROCEDURE [dbo].[FINDWORDS2] @SEARCHSTRING VARCHAR(200)

AS

BEGIN

DECLARE @STRING AS VARCHAR(200)

SET @STRING = DBO.FINDWORDS(@SEARCHSTRING, 'SITES') + ' SELECT * FROM #MYTABLE'

EXEC(@STRING)

END

现在您已准备好使用

过程搜索特定字符串

EXEC FINDWORDS2 @SEARCHSTRING = 'baz foo'

在查询文本参数中搜索术语

2 个答案: