搜索從一字一句

Question

產品

我已在使用下面的SQL，

SELECT * FROM Products P 
WHERE (P.Name LIKE '%'+@Keyword+'%') 

現在我需要通過文字搜索詞，是指當我進入Retina Sony然後我需要尋找Retina在名稱字段ANDSony在名稱字段。意味着我需要將關鍵字中的所有單詞匹配到動畫字段。上面的查詢不適合我。任何線索？

Answer 1

下面是答案，

SELECT * from [Products] P 
WHERE NOT EXISTS(SELECT 1 FROM Split(@Keyword,' ') Words WHERE (P.Name NOT LIKE '%' + Words.Items +'%')) 

得到它，a sql query with multiple search word

Answer 2

如果是事件使用。 轉換inputed字符串數組和嘗試：

WHERE 
    (
     P.Name LIKE '%'+@Keyword[0]+'%' OR 
     P.Name LIKE '%'+@Keyword[1]+'%' 
     .... 
    ) 

---

這是我的想法。

Answer 3

您可以編寫一個函數來分割，空間字符串的一些事情，如：

CREATE FUNCTION [dbo].[Split] 
(
@String VARCHAR(200), 
@Delimiter VARCHAR(5) 
) 

RETURNS @SplittedValues TABLE 
(
OccurenceId SMALLINT IDENTITY(1,1), 
SplitValue VARCHAR(200) 
) 

AS 

BEGIN 

DECLARE @SplitLength INT 

WHILE LEN(@String) > 0 
BEGIN 

SELECT @SplitLength = (CASE CHARINDEX(@Delimiter,@String) WHEN 0 THEN 

LEN(@String) ELSE CHARINDEX(@Delimiter,@String) -1 END) 

INSERT INTO @SplittedValues 

SELECT SUBSTRING(@String,1,@SplitLength) 

SELECT @String = (CASE (LEN(@String) - @SplitLength) WHEN 0 THEN '' 

ELSE RIGHT(@String, LEN(@String) - @SplitLength - 1) END) 

END 

RETURN 

然後使用這樣的功能：

SELECT * FROM Products P 
WHERE (P.Name in (Select * from dbo.Split(@Keyword, ' '))) 

Answer 4

CREATE FUNCTION [dbo].[Split] 
(
    @String NVARCHAR(4000), 
    @Delimiter NCHAR(1) 
) 
RETURNS TABLE 
AS 
RETURN 
(
    WITH Split(stpos,endpos) 
    AS(
     SELECT 0 AS stpos, CHARINDEX(@Delimiter,@String) AS endpos 
     UNION ALL 
     SELECT endpos+1, CHARINDEX(@Delimiter,@String,endpos+1) 
      FROM Split 
      WHERE endpos > 0 
    ) 
    SELECT 'Id' = ROW_NUMBER() OVER (ORDER BY (SELECT 1)), 
     'Data' = SUBSTRING(@String,stpos,COALESCE(NULLIF(endpos,0),LEN(@String)+1)-stpos) 
    FROM Split 
) 
GO 

DECLARE @DelimitedString NVARCHAR(128) 
SET @DelimitedString = 'Duckman,Cornfed,Ajax,Charles,Mambo' 
SELECT * FROM dbo.Split(@DelimitedString, ',') 

DECLARE @Keyword nvarchar(128) 
SET @Keyword = 'Retina,Cornfed' 

select * from Products p where p.name in 
(SELECT Data FROM dbo.Split(@Keyword, ',')) 

檢查現在這個

這我已經測試了它，讓我重溫了這個詞

Answer 5

聽起來像是一個完美的使用情況下全文搜索：

CREATE TABLE dbo.Products 
(
    ID INT IDENTITY CONSTRAINT PK_Products PRIMARY KEY CLUSTERED, 
    Name NVARCHAR(100) 
) 
GO 

CREATE FULLTEXT CATALOG mycatalog; 
GO 

CREATE FULLTEXT INDEX ON dbo.Products 
( 
    Name LANGUAGE 1033 
) 
KEY INDEX PK_Products ON mycatalog; 
GO 

SELECT * 
FROM dbo.Products 
WHERE FREETEXT(Name, 'Retina AND Sony') -- will match any text that contains the two words, their inflectional forms or synonyms 

有搜索的幾種方法以上只是一個例子。

參見： http://msdn.microsoft.com/en-us/library/ms142571.aspx http://msdn.microsoft.com/en-us/library/ms142583.aspx