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SQL Server子字符串循环

2012-07-25 80 views
0

我需要有关子字符串的帮助。SQL Server子字符串循环

列guild_data包含binary(4000)。

我需要得到每个值从269开始，每40和15长度直到结束。

例子：

SELECT DISTINCT 
     CONVERT(VARCHAR,substring(guild_data, 269, 15)) AS name, 
     CONVERT(VARCHAR,substring(guild_data, 309, 15)) AS name1, 
     CONVERT(VARCHAR,substring(guild_data, 349, 15)) AS name2, 
     CONVERT(VARCHAR,substring(guild_data, 389, 15)) AS name3, 
    -- so on until it gets till the end... 
FROM 
     guild_data

有没有办法更有效地做到这一点？

我估计大约100个重复...

269, 309, 349, 389, 429, 469, 509, 549, 589, 629, 669, 709, 749, 789, 829, 869, 909, 949, 989, 1029, 1069, 1109, 1149, 1189, 1229, 1269, 1309, 1349, 1389, 1429, 1469, 1509, 1549, 1589, 1629, 1669, 1709, 1749, 1789, 1829, 1869, 1909, 1949, 1989, 2029, 2069, 2109, 2149, 2189, 2229, 2269, 2309, 2349, 2389, 2429, 2469, 2509, 2549, 2589, 2629, 2669, 2709, 2749, 2789, 2829, 2869, 2909, 2949, 2989, 3029, 3069, 3109, 3149, 3189, 3229, 3269, 3309, 3349, 3389, 3429, 3469, 3509, 3549, 3589, 3629, 3669, 3709, 3749, 3789, 3829, 3869, 3909, 3949, 3989

谢谢。

我正在寻找T-SQL查询。我打算在PHP脚本上使用它。

----编辑---- 我们在这里有这个脚本，它也可以工作。但其过长:)

CONVERT(VARCHAR,substring(guild_data, 269, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 309, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 349, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 389, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 429, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 469, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 509, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 549, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 589, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 629, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 669, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 709, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 749, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 789, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 829, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 869, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 909, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 949, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 989, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 1029, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 1069, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 1109, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 1149, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 1189, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 1229, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 1269, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 1309, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 1349, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 1389, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 1429, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 1469, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 1509, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 1549, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 1589, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 1629, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 1669, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 1709, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 1749, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 1789, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 1829, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 1869, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 1909, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 1949, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 1989, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 2029, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 2069, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 2109, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 2149, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 2189, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 2229, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 2269, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 2309, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 2349, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 2389, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 2429, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 2469, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 2509, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 2549, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 2589, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 2629, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 2669, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 2709, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 2749, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 2789, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 2829, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 2869, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 2909, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 2949, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 2989, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 3029, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 3069, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 3109, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 3149, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 3189, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 3229, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 3269, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 3309, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 3349, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 3389, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 3429, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 3469, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 3509, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 3549, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 3589, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 3629, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 3669, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 3709, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 3749, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 3789, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 3829, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 3869, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 3909, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 3949, 15)) AS glname, 
CONVERT(VARCHAR,substring(guild_data, 3989, 15)) AS glname

来源

2012-07-25 nambla

+1

问：有没有办法更有效地做到这一点？答：是的。解析字符串的东西 - *任何* - 除了SQL。 Perl，PHP，C＃，VB.Net，Java，Python和Ruby都是合适的选择。用SQL查询字符串，并用您选择的语言进行处理。恕我直言... – paulsm4 2012-07-25 05:20:58

+0

为什么列'二进制（4000）'，如果它包含文本数据??? – 2012-07-25 05:22:15

+0

其设计失败，我必须处理它。 – nambla 2012-07-25 05:24:42

回答

1

下面是一个使用CTE例如：

DECLARE @String VARCHAR(4000) = '111111111111111222222222222222333333333333333444444444444444555555555555555' 
DECLARE @b VARBINARY(4000) = CONVERT(varbinary(4000),@string) 
DECLARE @StartPos int=1 
DECLARE @Len tinyint=15 
;WITH C (Orig,Startpos,Value) AS (
SELECT @b,@StartPos,CONVERT(VARCHAR,SUBSTRING(@b,@StartPos,@Len)) 
UNION ALL 
SELECT @b,[email protected],CONVERT(VARCHAR,SUBSTRING(@b,[email protected],@Len)) FROM C 
WHERE [email protected] < = LEN(@b) 
) 
select C.Value from c

结果：

Value 
111111111111111 
222222222222222 
333333333333333 
444444444444444 
555555555555555

在你的情况，你应该改变@StartPos 269和@Len 15

来源

2012-07-25 06:24:46 Dalex

0

另一种方法

declare @string varchar(4000) 
set @string = '111111111111111222222222222222333333333333333444444444444444555555555555555' 
declare @startpos int=1 
declare @len tinyint=15 

declare @t table(data varchar(100)) 
while len(@string)>15 
begin 
    insert into @t 
    select substring(@string,@startpos,@len) 
    select @string=substring(@string,@startpos+15,len(@string)) 
end 
    insert into @t 
    select substring(@string,@startpos,@len) 
select data from @t

来源

2012-07-25 08:06:23 Madhivanan

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