tsql函數拆分字符串

我想知道是否有人可以幫助我。tsql函數拆分字符串

我需要一個TSQL函數在給定值分割，如：

1) 00 Not specified 
3) 01-05 Global WM&BB | Operations 
2) 02-05-01 Global WM&BB | Operations | Operations n/a

我需要得到這樣的結果：

cat1 cat1descr  cat2 cat2descr  cat3 cat3descr 
---------------------------------------------------------------- 
00 Not especified null null   null null 
01 Global WM&BB 05  Operations null null 
01 Global WM&BB 05  Operations 01  Operations n/a

結果都將永遠6列

選擇funcX（'00未指定'）;

cat1 cat1descr  cat2 cat2descr  cat3 cat3descr 
---------------------------------------------------------------- 
00 Not especified null null   null null

來源

2009-10-20 Joshua

哪個版本的SQL Server？ – MartW 2009-10-20 14:11:09

http://stackoverflow.com/questions/2647/split-string-in-sql – tster 2009-10-20 13:44:46

爲此，可以使用PATINDEX和串

來源

2009-10-20 13:59:34

如果@In是你試圖解析字符串的值這樣做，那麼試試這個：

Select 
    Case When firstDash = 0 Then zz.sKey 
     Else left(zz.sKey, FirstDash-1) End cat1, 
     Ltrim(RTrim(Case When firstPipe = 0 Then zz.Vals 
     Else Left(zz.Vals, firstPipe -1) End)) ca1Desc, 
    Case When firstDash = 0 Then Null 
     When secondDash = 0 
      Then SubString(zz.sKey, FirstDash+1, Len(zz.skey)) 
     Else SubString(zz.sKey, FirstDash+1, secondDash-firstDash-1) End cat2, 
     Ltrim(RTrim(Case When firstPipe = 0 Then Null 
     When secondPipe = 0 
      Then SubString(zz.Vals, firstPipe+1, Len(zz.Vals)) 
     Else SubString(zz.Vals, firstPipe+1, 
         secondPipe-firstPipe-1) End)) cat2Desc, 
    Case When secondDash > 0 
     Then Substring(zz.sKey, secondDash+1, len(sKey)-seconddash) End cat3, 
      Ltrim(RTrim(Case When secondPipe > 0 
       Then Substring(zz.Vals, secondPipe+1, 
        len(Vals)-secondPipe) End)) cat3Desc 
    From (Select Z.sKey, Z.Vals, 
      charIndex('-', Z.skey) firstDash, 
      charIndex('-', Z.skey, 1 + charIndex('-', Z.skey)) secondDash, 
      charIndex('|', Z.Vals) firstPipe, 
     charIndex('|', Z.Vals, 1 + charIndex('|', Z.Vals)) secondPipe 
     From (Select Left(@In, CharIndex(' ', @In)-1) skey, 
       substring(@In, CharIndex(' ', @In)+ 1, Len(@In)) vals) Z) ZZ

來源

2009-10-20 14:47:00

這將在SQL工作Server 2005和SQL Server 2008.我假定你的第一個數字序列被固定爲1,2或3的2位組。你可以用更少的級聯CTE來做到這一點，但是我發現SUBSTRING/CHARINDEX/LEN語法可以很快就變得很難閱讀和調試。

DECLARE @foo TABLE 
(
    bar VARCHAR(4000) 
); 

INSERT @foo(bar) SELECT '00 Not specified' 
UNION ALL SELECT '01-05 Global WM&BB | Operations' 
UNION ALL SELECT '02-05-01 Global WM&BB | Operations | Operations n/a'; 


WITH split1 AS 
(
    SELECT 
     n = SUBSTRING(bar, 1, CHARINDEX(' ', bar)-1), 
     w = SUBSTRING(bar, CHARINDEX(' ', bar)+1, LEN(bar)), 
     rn = ROW_NUMBER() OVER (ORDER BY bar) 
    FROM 
     @foo 
), 
split2 AS 
(
    SELECT 
     rn, 
     cat1 = LEFT(n, 2), 
     wl = RTRIM(SUBSTRING(w, 1, 
      COALESCE(NULLIF(CHARINDEX('|', w), 0)-1, LEN(w)))), 
     wr = LTRIM(SUBSTRING(w, NULLIF(CHARINDEX('|', w),0) + 1, LEN(w))), 
     cat2 = NULLIF(SUBSTRING(n, 4, 2), ''), 
     cat3 = NULLIF(SUBSTRING(n, 7, 2), '') 
    FROM 
     split1 
), 
split3 AS 
(
    SELECT 
     rn, 
     cat1descr = wl, 
     cat2descr = RTRIM(SUBSTRING(wr, 1, 
       COALESCE(NULLIF(CHARINDEX('|', wr), 0)-1, LEN(wr)))), 
     cat3descr = LTRIM(SUBSTRING(wr, 
       NULLIF(CHARINDEX('|', wr),0) + 1, LEN(wr))) 
    FROM 
     split2 
) 
SELECT 
    s2.cat1, s3.cat1descr, 
    s2.cat2, s3.cat2descr, 
    s2.cat3, s3.cat3descr 
FROM split2 AS s2 
INNER JOIN split3 AS s3 
ON s2.rn = s3.rn;

來源

2009-10-20 15:19:37

tsql函數拆分字符串

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