SQL字符串处理--按分割符拆分字符串T-SQL to Split a varchar into Words
1 ---去掉字符串分隔符
2
3 CREATE TABLE inventory (fullname varchar(60) NOT NULL)
4 go
5 INSERT inventory(fullname)
6 VALUES ('2004 Inventory:Ex.Plant Farm1:1st Cut:Premium:0094')
7 INSERT inventory(fullname)
8 VALUES ('2004 Inventory')
9 INSERT inventory(fullname)
10 VALUES ('2004 Inventory:Ex.Plant Farm1:1st Cut')
11 go
12
13 SELECT inventory, plant = nullif(plant, ''), cut = nullif(cut, ''),
14 grade = nullif(grade, ''), lot# = nullif(lot#, '')
15 FROM
16 (SELECT inventory, plant, cut,
17 left(rest, charindex(':', rest + ':') - 1) AS grade,
18 substring(rest, charindex(':', rest + ':') + 1,
19 len(rest)) AS lot#
20 FROM
21 (SELECT inventory, plant,
22 left(rest, charindex(':', rest + ':') - 1) AS cut,
23 substring(rest, charindex(':', rest + ':') + 1,
24 len(rest)) AS rest
25 FROM
26 (SELECT inventory,
27 left(rest, charindex(':', rest + ':') - 1) AS plant,
28 substring(rest, charindex(':', rest + ':') + 1,
29 len(rest)) AS rest
30 FROM
31 (SELECT left(fullname, charindex(':', fullname + ':') - 1) AS inventory,
32 substring(fullname, charindex(':', fullname + ':') + 1,
33 len(fullname)) AS rest
34 FROM inventory) AS a) AS b) AS c) AS d
35 go
36
37 DROP TABLE inventory
38
39 --Below is a UDF to take a comma delim value and return in table format,
40 --the split results.. Use like select * from dbo.Split('1,2,3,3',',')
41 CREATE FUNCTION dbo.Split(@sText varchar(8000), @sDelim varchar(20) = '')
42 RETURNS @retArray TABLE (idx smallint Primary Key, value varchar(8000))
43 AS
44 BEGIN
45 DECLARE @idx int,
46 @value varchar(8000),
47 @bcontinue bit,
48 @iStrike int,
49 @iDelimlength int
50
51 IF @sDelim = 'Space'
52 BEGIN
53 SET @sDelim = ' '
54 END
55
56 SET @idx = 0
57 SET @sText = LTrim(RTrim(@sText))
58 SET @iDelimlength = DATALENGTH(@sDelim)
59 SET @bcontinue = 1
60
61 if(Len(@sText) = 0)
62 return
63
64 IF NOT ((@iDelimlength = 0) or (@sDelim = 'Empty'))
65 BEGIN
66 WHILE @bcontinue = 1
67 BEGIN
68
69 --If you can find the delimiter in the text, retrieve the first element
70 and
71 --insert it with its index into the return table.
72
73 IF CHARINDEX(@sDelim, @sText)>0
74 BEGIN
75 SET @value = SUBSTRING(@sText,1, CHARINDEX(@sDelim,@sText)-1)
76 BEGIN
77 INSERT @retArray (idx, value)
78 VALUES (@idx, @value)
79 END
80
81 --Trim the element and its delimiter from the front of the string.
82 --Increment the index and loop.
83 SET @iStrike = DATALENGTH(@value) + @iDelimlength
84 SET @idx = @idx + 1
85 SET @sText = LTrim(Right(@sText,DATALENGTH(@sText) - @iStrike))
86
87 END
88 ELSE
89 BEGIN
90 --If you canÆt find the delimiter in the text, @sText is the last
91 value in
92 --@retArray.
93 SET @value = @sText
94 BEGIN
95 INSERT @retArray (idx, value)
96 VALUES (@idx, @value)
97 END
98 --Exit the WHILE loop.
99 SET @bcontinue = 0
100 END
101 END
102 END
103 ELSE
104 BEGIN
105 WHILE @bcontinue=1
106 BEGIN
107 --If the delimiter is an empty string, check for remaining text
108 --instead of a delimiter. Insert the first character into the
109 --retArray table. Trim the character from the front of the string.
110 --Increment the index and loop.
111 IF DATALENGTH(@sText)>1
112 BEGIN
113 SET @value = SUBSTRING(@sText,1,1)
114 BEGIN
115 INSERT @retArray (idx, value)
116 VALUES (@idx, @value)
117 END
118 SET @idx = @idx+1
119 SET @sText = SUBSTRING(@sText,2,DATALENGTH(@sText)-1)
120
121 END
122 ELSE
123 BEGIN
124 --One character remains.
125 --Insert the character, and exit the WHILE loop.
126 INSERT @retArray (idx, value)
127 VALUES (@idx, @sText)
128 SET @bcontinue = 0
129 END
130 END
131
132 END
133
134 RETURN
135 END
136
137 GO
138
139 SET QUOTED_IDENTIFIER OFF
140 GO
141 SET ANSI_NULLS ON
142 GO
143
144
145
146 ---Here is an example usage of the T-SQL SPLIT function in action
147 CREATE FUNCTION SPLIT
148 (
149 @s nvarchar(max),
150 @trimPieces bit,
151 @returnEmptyStrings bit
152 )
153 returns @t table (val nvarchar(max))
154 as
155 begin
156
157 declare @i int, @j int
158 select @i = 0, @j = (len(@s) - len(replace(@s,',','')))
159
160 ;with cte
161 as
162 (
163 select
164 i = @i + 1,
165 s = @s,
166 n = substring(@s, 0, charindex(',', @s)),
167 m = substring(@s, charindex(',', @s)+1, len(@s) - charindex(',', @s))
168
169 union all
170
171 select
172 i = cte.i + 1,
173 s = cte.m,
174 n = substring(cte.m, 0, charindex(',', cte.m)),
175 m = substring(
176 cte.m,
177 charindex(',', cte.m) + 1,
178 len(cte.m)-charindex(',', cte.m)
179 )
180 from cte
181 where i <= @j
182 )
183 insert into @t (val)
184 select pieces
185 from
186 (
187 select
188 case
189 when @trimPieces = 1
190 then ltrim(rtrim(case when i <= @j then n else m end))
191 else case when i <= @j then n else m end
192 end as pieces
193 from cte
194 ) t
195 where
196 (@returnEmptyStrings = 0 and len(pieces) > 0)
197 or (@returnEmptyStrings = 1)
198 option (maxrecursion 0)
199
200 return
201
202 end
203
204 GO
205 --测试
206 declare @s nvarchar(max)
207 select @s = N',,45 , 1, 56, 346 456,8,5, ,d,1,4, 5 9 ,t,,4,5 ,,, w, 3,,'
208 select * from dbo.split(@s,1,0)
209
210
211 ---
212 DECLARE @t table(c1 varchar(200))
213 INSERT INTO @t (c1) VALUES('LongerValue/Place_1/Last_Place')
214
215 SELECT site = PARSENAME(REPLACE(c1, '/', '.'), 3),
216 floor = PARSENAME(REPLACE(c1, '/', '.'), 2),
217 location = PARSENAME(REPLACE(c1, '/', '.'), 1)
218 FROM @t
219
220
221 CREATE FUNCTION dbo.Split (@sep char(1), @s varchar(512))
222 RETURNS table
223 AS
224 RETURN (
225 WITH Pieces(pn, start, stop) AS (
226 SELECT 1, 1, CHARINDEX(@sep, @s)
227 UNION ALL
228 SELECT pn + 1, stop + 1, CHARINDEX(@sep, @s, stop + 1)
229 FROM Pieces
230 WHERE stop > 0
231 )
232 SELECT pn,
233 SUBSTRING(@s, start, CASE WHEN stop > 0 THEN stop-start ELSE 512 END) AS s
234 FROM Pieces
235 )
236
237
238 --I use this function (SQL Server 2005 and above).
239 create function [dbo].[Split]
240 (
241 @string nvarchar(4000),
242 @delimiter nvarchar(10)
243 )
244 returns @table table
245 (
246 [Value] nvarchar(4000)
247 )
248 begin
249 declare @nextString nvarchar(4000)
250 declare @pos int, @nextPos int
251 declare @commaCheck nvarchar(1)
252
253 set @nextString = ''
254 set @commaCheck = right(@string, 1)
255 set @string = @string + @delimiter
256
257 set @pos = charindex(@delimiter, @string)
258 set @nextPos = 1
259 while (@pos <> 0)
260 begin
261 set @nextString = substring(@string, 1, @pos - 1)
262
263 insert into @table
264 (
265 [Value]
266 )
267 values
268 (
269 @nextString
270 )
271
272 set @string = substring(@string, @pos + 1, len(@string))
273 set @nextPos = @pos
274 set @pos = charindex(@delimiter, @string)
275 end
276 return
277 end
278
279 --
280 create FUNCTION dbo.fn_Split2 (@sep nvarchar(10), @s nvarchar(4000))
281 RETURNS table
282 AS
283 RETURN (
284 WITH Pieces(pn, start, stop) AS (
285 SELECT 1, 1, CHARINDEX(@sep, @s)
286 UNION ALL
287 SELECT pn + 1, stop + (datalength(@sep)/2), CHARINDEX(@sep, @s, stop + (datalength(@sep)/2))
288 FROM Pieces
289 WHERE stop > 0
290 )
291 SELECT pn,
292 SUBSTRING(@s, start, CASE WHEN stop > 0 THEN stop-start ELSE 4000 END) AS s
293 FROM Pieces
294 )
295 --
296 ALTER Function [dbo].[SplitStr] (
297 @txt text
298 )
299 Returns @tmp Table
300 (
301 value varchar(127)
302 )
303 as
304 BEGIN
305 declare @str varchar(8000)
306 , @Beg int
307 , @last int
308 , @size int
309
310 set @size=datalength(@txt)
311 set @Beg=1
312
313
314 set @str=substring(@txt,@Beg,8000)
315 IF len(@str)<8000 set @Beg=@size
316 ELSE BEGIN
317 set @last=charindex(',', reverse(@str))
318 set @str=substring(@txt,@Beg,8000-@last)
319 set @Beg=@Beg+8000-@last+1
320 END
321
322 declare @workingString varchar(25)
323 , @stringindex int
324
325
326
327 while @Beg<=@size Begin
328 WHILE LEN(@str) > 0 BEGIN
329 SELECT @StringIndex = CHARINDEX(',', @str)
330
331 SELECT
332 @workingString = CASE
333 WHEN @StringIndex > 0 THEN SUBSTRING(@str, 1, @StringIndex-1)
334 ELSE @str
335 END
336
337 INSERT INTO
338 @tmp(value)
339 VALUES
340 (cast(rtrim(ltrim(@workingString)) as varchar(127)))
341 SELECT @str = CASE
342 WHEN CHARINDEX(',', @str) > 0 THEN SUBSTRING(@str, @StringIndex+1, LEN(@str))
343 ELSE ''
344 END
345 END
346 set @str=substring(@txt,@Beg,8000)
347
348 if @Beg=@size set @Beg=@Beg+1
349 else IF len(@str)<8000 set @Beg=@size
350 ELSE BEGIN
351 set @last=charindex(',', reverse(@str))
352 set @str=substring(@txt,@Beg,8000-@last)
353 set @Beg=@Beg+8000-@last+1
354
355 END
356 END
357
358 return
359 END
360 --
361 SELECT substring(commaSeparatedTags,0,charindex(',',commaSeparatedTags))
362
363 --
364 CREATE FUNCTION SplitWords(@text varchar(8000))
365 RETURNS @words TABLE (
366 pos smallint primary key,
367 value varchar(8000)
368 )
369 AS
370 BEGIN
371 DECLARE
372 @pos smallint,
373 @i smallint,
374 @j smallint,
375 @s varchar(8000)
376
377 SET @pos = 1
378 WHILE @pos <= LEN(@text)
379 BEGIN
380 SET @i = CHARINDEX(' ', @text, @pos)
381 SET @j = CHARINDEX(',', @text, @pos)
382 IF @i > 0 OR @j > 0
383 BEGIN
384 IF @i = 0 OR (@j > 0 AND @j < @i)
385 SET @i = @j
386
387 IF @i > @pos
388 BEGIN
389 -- @i now holds the earliest delimiter in the string
390 SET @s = SUBSTRING(@text, @pos, @i - @pos)
391
392 INSERT INTO @words
393 VALUES (@pos, @s)
394 END
395 SET @pos = @i + 1
396
397 WHILE @pos < LEN(@text)
398 AND SUBSTRING(@text, @pos, 1) IN (' ', ',')
399 SET @pos = @pos + 1
400 END
401 ELSE
402 BEGIN
403 INSERT INTO @words
404 VALUES (@pos, SUBSTRING(@text, @pos, LEN(@text) - @pos + 1))
405
406 SET @pos = LEN(@text) + 1
407 END
408 END
409 RETURN
410 END
411
412
413 select *
414
415 from table1 t1
416
417 where dbo.splitwords(t1.column1)
418
419 like dbo.splitwords(@userinput)
420
421 (where @userinput is a input parameter)
422
423 --I think dbo.splitwords(t1.column1) does not work in sql server 2000.
424
425 --I hope you have solution.
426
427 --Sample table.
428 CREATE TABLE dbo.[tblRates] (
429 [RateID] [id] ,
430 [Rate] [varchar] (80) COLLATE Latin1_General_CI_AS NULL
431 )
432 GO
433
434 --Sample data.
435 CREATE TABLE tblRates
436 (
437 RateID INT,
438 Rate VARCHAR(100)
439 )
440 GO
441
442 INSERT INTO tblRates (RateID, Rate)
443 VALUES (1,'1.123456789,2.1234567,3.12345')
444
445
446 --Current query, with the three rates split out (Fields: Rate1,Rate2,Rate3)
447 SELECT
448 Rate AS 'MasterRates'
449 ,'Rate1' = LEFT(Rate,CHARINDEX(',',Rate)-1)
450 ,'Rate2' =
451 LEFT(SUBSTRING(Rate,(CHARINDEX(',',Rate)+1),LEN(Rate)),CHARINDEX(',',SUBSTRING(Rate,(CHARINDEX(',',Rate)+1),LEN(Rate)))-1)
452 ,'Rate3' = SUBSTRING(Rate, ((LEN(LEFT(Rate,CHARINDEX(',',Rate)-1))+1) +
453 (LEN(LEFT(SUBSTRING(Rate,(CHARINDEX(',',Rate)+1),LEN(Rate)),CHARINDEX(',',SUBSTRING(Rate,(CHARINDEX(',',Rate)+1),LEN(Rate)))-1))+1))+1
454 ,LEN(Rate) )
455
456 --Fields for calculation reference.
457 ,'Rate1LengthIncDelimitter' = LEN(LEFT(Rate,CHARINDEX(',',Rate)-1))+1
458 ,'Rate2LengthIncDelimitter' =
459 LEN(LEFT(SUBSTRING(Rate,(CHARINDEX(',',Rate)+1),LEN(Rate)),CHARINDEX(',',SUBSTRING(Rate,(CHARINDEX(',',Rate)+1),LEN(Rate)))-1))+1
460 ,'Rate3StartingCharacterPostion' =
461 ((LEN(LEFT(Rate,CHARINDEX(',',Rate)-1))+1) +
462 (LEN(LEFT(SUBSTRING(Rate,(CHARINDEX(',',Rate)+1),LEN(Rate)),CHARINDEX(',',SUBSTRING(Rate,(CHARINDEX(',',Rate)+1),LEN(Rate)))-1))+1))+1
463 FROM tblRates
464
465 select RateID,
466 replace(parsename(replace(replace(
467 Rate, '.', '/'), ',', '.'), 3), '/', '.') AS 'A',
468 replace(parsename(replace(replace(
469 Rate, '.', '/'), ',', '.'), 2), '/', '.') AS 'B',
470 replace(parsename(replace(replace(
471 Rate, '.', '/'), ',', '.'), 1), '/', '.') AS 'C'
472 from tblRates
473
474 CREATE FUNCTION [dbo].[SPLIT] (
475
476 @str_in VARCHAR(8000),
477
478 @separator VARCHAR(4) )
479
480 RETURNS @strtable TABLE (strval VARCHAR(8000))
481
482 AS
483
484 BEGIN
485
486 DECLARE
487
488 @Occurrences INT,
489
490 @Counter INT,
491
492 @tmpStr VARCHAR(8000)
493
494 SET @Counter = 0
495
496 IF SUBSTRING(@str_in,LEN(@str_in),1) <> @separator
497
498 SET @str_in = @str_in + @separator
499
500 SET @Occurrences = (DATALENGTH(REPLACE(@str_in,@separator,@separator+'#')) - DATALENGTH(@str_in))/ DATALENGTH(@separator)
501
502 SET @tmpStr = @str_in
503
504 WHILE @Counter <= @Occurrences
505
506 BEGIN
507
508 SET @Counter = @Counter + 1
509
510 INSERT INTO @strtable
511
512 VALUES ( SUBSTRING(@tmpStr,1,CHARINDEX(@separator,@tmpStr)-1))
513
514 SET @tmpStr = SUBSTRING(@tmpStr,CHARINDEX(@separator,@tmpStr)+1,8000)
515
516
517 IF DATALENGTH(@tmpStr) = 0
518
519 BREAK
520
521
522 END
523
524 RETURN
525
526 END
527
528 GO
529
530 --
531 CREATE FUNCTION [dbo].[Split]
532 (
533 @pvcSearchString VARCHAR(8000),
534 @pvcSeparator VARCHAR(5)
535 )
536
537 RETURNS @strtable TABLE (strval VARCHAR(8000))
538
539 AS
540
541 BEGIN
542 DECLARE
543 @tmpStr VARCHAR(8000),
544 @intSeparatorLength INT
545
546 SET @intSeparatorLength = LEN(@pvcSeparator)
547
548 SET @tmpStr = @pvcSearchString
549 WHILE 1=1
550 BEGIN
551 INSERT INTO @strtable VALUES ( SUBSTRING(@tmpStr, 0 ,CHARINDEX(@pvcSeparator,@tmpStr)))
552 SET @tmpStr = SUBSTRING(@tmpStr,CHARINDEX(@pvcSeparator,@tmpStr)+LEN(@pvcSeparator),8000)
553 IF CHARINDEX(@pvcSeparator,@tmpStr) < 1
554 BREAK
555 END
556
557 RETURN
558 END
559
560 --
561 /*
562 Sample Delineated Data From [Col1]:
563 "Item 1 | Item 2 | Item 3"
564
565 Desired Target Result:
566 [ColItem1],[ColItem2],[ColItem3]
567 “Item 1”, Item 2”, Item 3”
568
569 Use the MS SQL PARSENAME function to achieve this. It’s a little backwards from how you think it should work, but follow this example to get the basic idea. PARSENAME can by used in similar fashion to a split function.
570
571 Sample Syntax (default delimited style):
572 */
573 Select
574 PARSENAME([Col1],3) as ColItem1
575 ,PARSENAME([Col1],2) as ColItem2
576 ,PARSENAME([Col1],1) as ColItem3
577 From [myTable]
578
579 --Sample Syntax (dealing with the pipe | ):
580
581 Select
582 PARSENAME(replace([Col1],'|','.'),3) as ColItem1
583 ,PARSENAME(replace([Col1],'|','.'),2) as ColItem2
584 ,PARSENAME(replace([Col1],'|','.'),1) as ColItem3
585 From [myTable]
586
587 ---split column with part of text string
588 CREATE TABLE myTable99(Col1 varchar(255))
589 GO
590
591 SET NOCOUNT ON
592 INSERT INTO myTable99(Col1)
593 SELECT 'name: johnson email: firstname: philip need: doc 12' UNION ALL
594 SELECT 'name: johnson email: pjohnson@yahoo.com firstname: philip need: doc 13'
595 GO
596
597 CREATE FUNCTION udf_GetString(@Col1 varchar(255), @tag varchar(255))
598 RETURNS varchar(255)
599 AS
600 BEGIN
601 DECLARE @str varchar(255)
602 SELECT @str = SUBSTRING(@Col1
603 , CHARINDEX(@tag,@Col1)+1+LEN(@tag)
604 , CHARINDEX(' ',Col1,CHARINDEX(@tag,@Col1)+1+LEN(@tag))-(CHARINDEX(@tag,@Col1)+1+LEN(@tag)))
605 FROM myTable99
606 RETURN @str
607 END
608 GO
609
610 SELECT dbo.udf_GetString(Col1,'firstname:')
611 , dbo.udf_GetString(Col1,'email:')
612 , dbo.udf_GetString(Col1,'need:')
613 , Col1
614 FROM myTable99
615 GO
616
617 DECLARE @tag varchar(255)
618 SELECT @tag = 'firstname:'
619 SELECT SUBSTRING(Col1
620 , CHARINDEX(@tag,Col1)+1+LEN(@tag)
621 , CHARINDEX(' ',Col1,CHARINDEX(@tag,Col1)+1+LEN(@tag))-(CHARINDEX(@tag,Col1)+1+LEN(@tag)))
622 FROM myTable99
623 SELECT @tag = 'email:'
624 SELECT SUBSTRING(Col1
625 , CHARINDEX(@tag,Col1)+1+LEN(@tag)
626 , CHARINDEX(' ',Col1,CHARINDEX(@tag,Col1)+1+LEN(@tag))-(CHARINDEX(@tag,Col1)+1+LEN(@tag)))
627 FROM myTable99
628 SELECT @tag = 'need:'
629 SELECT SUBSTRING(Col1
630 , CHARINDEX(@tag,Col1)+1+LEN(@tag)
631 , CHARINDEX(' ',Col1,CHARINDEX(@tag,Col1)+1+LEN(@tag))-(CHARINDEX(@tag,Col1)+1+LEN(@tag)))
632 FROM myTable99
633 GO
634
635
636 SET NOCOUNT OFF
637 DROP FUNCTION udf_GetString
638 DROP TABLE myTable99
639 GO
640
641 SELECT * FROM [dbo].[SPLIT]('1,2,3')
642
643
644 CREATE FUNCTION [dbo].[SPLIT]
645 (
646 @Text TEXT
647 )
648 RETURNS @output TABLE(
649 Item INT
650 )
651 BEGIN
652
653 DECLARE @start INT, @end INT , @Datalen INT
654
655
656 SELECT @start = 1,
657 @end = CHARINDEX(',', @Text),
658 @Datalen = DATALENGTH(@Text) + 1
659
660 WHILE @start < @Datalen BEGIN
661 IF @end <= @start BEGIN
662 SET @end = @Datalen
663 END
664
665 INSERT INTO @output (Item)
666 VALUES (SUBSTRING(@Text, @start, @end - @start))
667
668 SET @start = @end + 1
669 SET @end = CHARINDEX(',', SUBSTRING(@Text, @start,20)) + @start -1
670 END
671 RETURN
672 END
673
674
675
676 And here get 2 fields
677
678 SELECT * FROM [dbo].[SPLIT_2]('1_1,2_1,2_2')
679
680 CREATE FUNCTION [dbo].[SPLIT_2]
681 (
682 @Text TEXT
683 )
684 RETURNS @output TABLE(
685 Document_id INT,IndexOf int
686 )
687 BEGIN
688
689 DECLARE @start INT, @end INT , @Datalen INT ,
690 @Values VARCHAR(50), @Document VARCHAR(5),
691 @Index VARCHAR(5), @CharIndex INT
692
693 SELECT @start = 1,
694 @end = CHARINDEX(',', @Text),
695 @Datalen = DATALENGTH(@Text) + 1
696
697 WHILE @start < @Datalen BEGIN
698 IF @end <= @start BEGIN
699 SET @end = @Datalen
700 END
701
702 SET @Values = SUBSTRING(@Text, @start, @end - @start)
703 SET @CharIndex = CHARINDEX('_', @Values)
704
705 SET @Document = SUBSTRING(@Values,0,@CharIndex)
706 SET @Index = SUBSTRING(@Values,@CharIndex+1,5)
707
708 INSERT INTO @output (document_id , IndexOf)
709 VALUES (@Document,@Index)
710
711 SET @start = @end + 1
712 SET @end = CHARINDEX(',', SUBSTRING(@Text, @start,20)) + @start -1
713 END
714 RETURN
715
716
717 ---SQL: String Split Function
718 CREATE FUNCTION Split(@String varchar(4000), @Delimiter char(1))
719 RETURNS @Results TABLE (ID int, Items nvarchar(4000))
720 AS
721
722 BEGIN
723 DECLARE @INDEX INT
724 DECLARE @SLICE nvarchar(4000)
725 DECLARE @ID int
726
727 SELECT @INDEX = 1, @ID = 1
728 WHILE @INDEX !=0
729
730 BEGIN
731 -- GET THE INDEX OF THE FIRST OCCURENCE OF THE SPLIT CHARACTER
732 SELECT @INDEX = CHARINDEX(@Delimiter,@STRING)
733 -- NOW PUSH EVERYTHING TO THE LEFT OF IT INTO THE SLICE VARIABLE
734 IF @INDEX !=0
735 SELECT @SLICE = LEFT(@STRING,@INDEX - 1)
736 ELSE
737 SELECT @SLICE = @STRING
738 -- PUT THE ITEM INTO THE RESULTS SET
739 INSERT INTO @Results(ID, Items) VALUES(@ID, @SLICE)
740 SELECT @ID = @ID + 1
741 -- CHOP THE ITEM REMOVED OFF THE MAIN STRING
742 SELECT @STRING = RIGHT(@STRING,LEN(@STRING) - @INDEX)
743 -- BREAK OUT IF WE ARE DONE
744 IF LEN(@STRING) = 0 BREAK
745 END
746 RETURN
747
748 select Items from dbo.Split(@List, ',')
749
750 Create FUNCTION Split(@String varchar(4000), @Delimiter char(1))
751 RETURNS @Results TABLE (ID int, Items nvarchar(4000))
752 AS
753
754 BEGIN
755 DECLARE @INDEX INT
756 DECLARE @SLICE nvarchar(4000)
757 DECLARE @ID int
758
759 SELECT @INDEX = 1, @ID = 1
760 WHILE @INDEX !=0
761
762 BEGIN
763 -- GET THE INDEX OF THE FIRST OCCURENCE OF THE SPLIT CHARACTER
764 SELECT @INDEX = CHARINDEX(@Delimiter,@String)
765 -- NOW PUSH EVERYTHING TO THE LEFT OF IT INTO THE SLICE VARIABLE
766 IF @INDEX !=0
767 SELECT @SLICE = LEFT(@String,@INDEX - 1)
768 ELSE
769 SELECT @SLICE = @String
770 -- PUT THE ITEM INTO THE RESULTS SET
771 INSERT INTO @Results(ID, Items) VALUES(@ID, @SLICE)
772 SELECT @ID = @ID + 1
773 -- CHOP THE ITEM REMOVED OFF THE MAIN STRING
774 SELECT @String = RIGHT(@String,LEN(@String) - @INDEX)
775 -- BREAK OUT IF WE ARE DONE
776 IF LEN(@String) = 0 BREAK
777 END
778 Return
779 END
780
781
2
3 CREATE TABLE inventory (fullname varchar(60) NOT NULL)
4 go
5 INSERT inventory(fullname)
6 VALUES ('2004 Inventory:Ex.Plant Farm1:1st Cut:Premium:0094')
7 INSERT inventory(fullname)
8 VALUES ('2004 Inventory')
9 INSERT inventory(fullname)
10 VALUES ('2004 Inventory:Ex.Plant Farm1:1st Cut')
11 go
12
13 SELECT inventory, plant = nullif(plant, ''), cut = nullif(cut, ''),
14 grade = nullif(grade, ''), lot# = nullif(lot#, '')
15 FROM
16 (SELECT inventory, plant, cut,
17 left(rest, charindex(':', rest + ':') - 1) AS grade,
18 substring(rest, charindex(':', rest + ':') + 1,
19 len(rest)) AS lot#
20 FROM
21 (SELECT inventory, plant,
22 left(rest, charindex(':', rest + ':') - 1) AS cut,
23 substring(rest, charindex(':', rest + ':') + 1,
24 len(rest)) AS rest
25 FROM
26 (SELECT inventory,
27 left(rest, charindex(':', rest + ':') - 1) AS plant,
28 substring(rest, charindex(':', rest + ':') + 1,
29 len(rest)) AS rest
30 FROM
31 (SELECT left(fullname, charindex(':', fullname + ':') - 1) AS inventory,
32 substring(fullname, charindex(':', fullname + ':') + 1,
33 len(fullname)) AS rest
34 FROM inventory) AS a) AS b) AS c) AS d
35 go
36
37 DROP TABLE inventory
38
39 --Below is a UDF to take a comma delim value and return in table format,
40 --the split results.. Use like select * from dbo.Split('1,2,3,3',',')
41 CREATE FUNCTION dbo.Split(@sText varchar(8000), @sDelim varchar(20) = '')
42 RETURNS @retArray TABLE (idx smallint Primary Key, value varchar(8000))
43 AS
44 BEGIN
45 DECLARE @idx int,
46 @value varchar(8000),
47 @bcontinue bit,
48 @iStrike int,
49 @iDelimlength int
50
51 IF @sDelim = 'Space'
52 BEGIN
53 SET @sDelim = ' '
54 END
55
56 SET @idx = 0
57 SET @sText = LTrim(RTrim(@sText))
58 SET @iDelimlength = DATALENGTH(@sDelim)
59 SET @bcontinue = 1
60
61 if(Len(@sText) = 0)
62 return
63
64 IF NOT ((@iDelimlength = 0) or (@sDelim = 'Empty'))
65 BEGIN
66 WHILE @bcontinue = 1
67 BEGIN
68
69 --If you can find the delimiter in the text, retrieve the first element
70 and
71 --insert it with its index into the return table.
72
73 IF CHARINDEX(@sDelim, @sText)>0
74 BEGIN
75 SET @value = SUBSTRING(@sText,1, CHARINDEX(@sDelim,@sText)-1)
76 BEGIN
77 INSERT @retArray (idx, value)
78 VALUES (@idx, @value)
79 END
80
81 --Trim the element and its delimiter from the front of the string.
82 --Increment the index and loop.
83 SET @iStrike = DATALENGTH(@value) + @iDelimlength
84 SET @idx = @idx + 1
85 SET @sText = LTrim(Right(@sText,DATALENGTH(@sText) - @iStrike))
86
87 END
88 ELSE
89 BEGIN
90 --If you canÆt find the delimiter in the text, @sText is the last
91 value in
92 --@retArray.
93 SET @value = @sText
94 BEGIN
95 INSERT @retArray (idx, value)
96 VALUES (@idx, @value)
97 END
98 --Exit the WHILE loop.
99 SET @bcontinue = 0
100 END
101 END
102 END
103 ELSE
104 BEGIN
105 WHILE @bcontinue=1
106 BEGIN
107 --If the delimiter is an empty string, check for remaining text
108 --instead of a delimiter. Insert the first character into the
109 --retArray table. Trim the character from the front of the string.
110 --Increment the index and loop.
111 IF DATALENGTH(@sText)>1
112 BEGIN
113 SET @value = SUBSTRING(@sText,1,1)
114 BEGIN
115 INSERT @retArray (idx, value)
116 VALUES (@idx, @value)
117 END
118 SET @idx = @idx+1
119 SET @sText = SUBSTRING(@sText,2,DATALENGTH(@sText)-1)
120
121 END
122 ELSE
123 BEGIN
124 --One character remains.
125 --Insert the character, and exit the WHILE loop.
126 INSERT @retArray (idx, value)
127 VALUES (@idx, @sText)
128 SET @bcontinue = 0
129 END
130 END
131
132 END
133
134 RETURN
135 END
136
137 GO
138
139 SET QUOTED_IDENTIFIER OFF
140 GO
141 SET ANSI_NULLS ON
142 GO
143
144
145
146 ---Here is an example usage of the T-SQL SPLIT function in action
147 CREATE FUNCTION SPLIT
148 (
149 @s nvarchar(max),
150 @trimPieces bit,
151 @returnEmptyStrings bit
152 )
153 returns @t table (val nvarchar(max))
154 as
155 begin
156
157 declare @i int, @j int
158 select @i = 0, @j = (len(@s) - len(replace(@s,',','')))
159
160 ;with cte
161 as
162 (
163 select
164 i = @i + 1,
165 s = @s,
166 n = substring(@s, 0, charindex(',', @s)),
167 m = substring(@s, charindex(',', @s)+1, len(@s) - charindex(',', @s))
168
169 union all
170
171 select
172 i = cte.i + 1,
173 s = cte.m,
174 n = substring(cte.m, 0, charindex(',', cte.m)),
175 m = substring(
176 cte.m,
177 charindex(',', cte.m) + 1,
178 len(cte.m)-charindex(',', cte.m)
179 )
180 from cte
181 where i <= @j
182 )
183 insert into @t (val)
184 select pieces
185 from
186 (
187 select
188 case
189 when @trimPieces = 1
190 then ltrim(rtrim(case when i <= @j then n else m end))
191 else case when i <= @j then n else m end
192 end as pieces
193 from cte
194 ) t
195 where
196 (@returnEmptyStrings = 0 and len(pieces) > 0)
197 or (@returnEmptyStrings = 1)
198 option (maxrecursion 0)
199
200 return
201
202 end
203
204 GO
205 --测试
206 declare @s nvarchar(max)
207 select @s = N',,45 , 1, 56, 346 456,8,5, ,d,1,4, 5 9 ,t,,4,5 ,,, w, 3,,'
208 select * from dbo.split(@s,1,0)
209
210
211 ---
212 DECLARE @t table(c1 varchar(200))
213 INSERT INTO @t (c1) VALUES('LongerValue/Place_1/Last_Place')
214
215 SELECT site = PARSENAME(REPLACE(c1, '/', '.'), 3),
216 floor = PARSENAME(REPLACE(c1, '/', '.'), 2),
217 location = PARSENAME(REPLACE(c1, '/', '.'), 1)
218 FROM @t
219
220
221 CREATE FUNCTION dbo.Split (@sep char(1), @s varchar(512))
222 RETURNS table
223 AS
224 RETURN (
225 WITH Pieces(pn, start, stop) AS (
226 SELECT 1, 1, CHARINDEX(@sep, @s)
227 UNION ALL
228 SELECT pn + 1, stop + 1, CHARINDEX(@sep, @s, stop + 1)
229 FROM Pieces
230 WHERE stop > 0
231 )
232 SELECT pn,
233 SUBSTRING(@s, start, CASE WHEN stop > 0 THEN stop-start ELSE 512 END) AS s
234 FROM Pieces
235 )
236
237
238 --I use this function (SQL Server 2005 and above).
239 create function [dbo].[Split]
240 (
241 @string nvarchar(4000),
242 @delimiter nvarchar(10)
243 )
244 returns @table table
245 (
246 [Value] nvarchar(4000)
247 )
248 begin
249 declare @nextString nvarchar(4000)
250 declare @pos int, @nextPos int
251 declare @commaCheck nvarchar(1)
252
253 set @nextString = ''
254 set @commaCheck = right(@string, 1)
255 set @string = @string + @delimiter
256
257 set @pos = charindex(@delimiter, @string)
258 set @nextPos = 1
259 while (@pos <> 0)
260 begin
261 set @nextString = substring(@string, 1, @pos - 1)
262
263 insert into @table
264 (
265 [Value]
266 )
267 values
268 (
269 @nextString
270 )
271
272 set @string = substring(@string, @pos + 1, len(@string))
273 set @nextPos = @pos
274 set @pos = charindex(@delimiter, @string)
275 end
276 return
277 end
278
279 --
280 create FUNCTION dbo.fn_Split2 (@sep nvarchar(10), @s nvarchar(4000))
281 RETURNS table
282 AS
283 RETURN (
284 WITH Pieces(pn, start, stop) AS (
285 SELECT 1, 1, CHARINDEX(@sep, @s)
286 UNION ALL
287 SELECT pn + 1, stop + (datalength(@sep)/2), CHARINDEX(@sep, @s, stop + (datalength(@sep)/2))
288 FROM Pieces
289 WHERE stop > 0
290 )
291 SELECT pn,
292 SUBSTRING(@s, start, CASE WHEN stop > 0 THEN stop-start ELSE 4000 END) AS s
293 FROM Pieces
294 )
295 --
296 ALTER Function [dbo].[SplitStr] (
297 @txt text
298 )
299 Returns @tmp Table
300 (
301 value varchar(127)
302 )
303 as
304 BEGIN
305 declare @str varchar(8000)
306 , @Beg int
307 , @last int
308 , @size int
309
310 set @size=datalength(@txt)
311 set @Beg=1
312
313
314 set @str=substring(@txt,@Beg,8000)
315 IF len(@str)<8000 set @Beg=@size
316 ELSE BEGIN
317 set @last=charindex(',', reverse(@str))
318 set @str=substring(@txt,@Beg,8000-@last)
319 set @Beg=@Beg+8000-@last+1
320 END
321
322 declare @workingString varchar(25)
323 , @stringindex int
324
325
326
327 while @Beg<=@size Begin
328 WHILE LEN(@str) > 0 BEGIN
329 SELECT @StringIndex = CHARINDEX(',', @str)
330
331 SELECT
332 @workingString = CASE
333 WHEN @StringIndex > 0 THEN SUBSTRING(@str, 1, @StringIndex-1)
334 ELSE @str
335 END
336
337 INSERT INTO
338 @tmp(value)
339 VALUES
340 (cast(rtrim(ltrim(@workingString)) as varchar(127)))
341 SELECT @str = CASE
342 WHEN CHARINDEX(',', @str) > 0 THEN SUBSTRING(@str, @StringIndex+1, LEN(@str))
343 ELSE ''
344 END
345 END
346 set @str=substring(@txt,@Beg,8000)
347
348 if @Beg=@size set @Beg=@Beg+1
349 else IF len(@str)<8000 set @Beg=@size
350 ELSE BEGIN
351 set @last=charindex(',', reverse(@str))
352 set @str=substring(@txt,@Beg,8000-@last)
353 set @Beg=@Beg+8000-@last+1
354
355 END
356 END
357
358 return
359 END
360 --
361 SELECT substring(commaSeparatedTags,0,charindex(',',commaSeparatedTags))
362
363 --
364 CREATE FUNCTION SplitWords(@text varchar(8000))
365 RETURNS @words TABLE (
366 pos smallint primary key,
367 value varchar(8000)
368 )
369 AS
370 BEGIN
371 DECLARE
372 @pos smallint,
373 @i smallint,
374 @j smallint,
375 @s varchar(8000)
376
377 SET @pos = 1
378 WHILE @pos <= LEN(@text)
379 BEGIN
380 SET @i = CHARINDEX(' ', @text, @pos)
381 SET @j = CHARINDEX(',', @text, @pos)
382 IF @i > 0 OR @j > 0
383 BEGIN
384 IF @i = 0 OR (@j > 0 AND @j < @i)
385 SET @i = @j
386
387 IF @i > @pos
388 BEGIN
389 -- @i now holds the earliest delimiter in the string
390 SET @s = SUBSTRING(@text, @pos, @i - @pos)
391
392 INSERT INTO @words
393 VALUES (@pos, @s)
394 END
395 SET @pos = @i + 1
396
397 WHILE @pos < LEN(@text)
398 AND SUBSTRING(@text, @pos, 1) IN (' ', ',')
399 SET @pos = @pos + 1
400 END
401 ELSE
402 BEGIN
403 INSERT INTO @words
404 VALUES (@pos, SUBSTRING(@text, @pos, LEN(@text) - @pos + 1))
405
406 SET @pos = LEN(@text) + 1
407 END
408 END
409 RETURN
410 END
411
412
413 select *
414
415 from table1 t1
416
417 where dbo.splitwords(t1.column1)
418
419 like dbo.splitwords(@userinput)
420
421 (where @userinput is a input parameter)
422
423 --I think dbo.splitwords(t1.column1) does not work in sql server 2000.
424
425 --I hope you have solution.
426
427 --Sample table.
428 CREATE TABLE dbo.[tblRates] (
429 [RateID] [id] ,
430 [Rate] [varchar] (80) COLLATE Latin1_General_CI_AS NULL
431 )
432 GO
433
434 --Sample data.
435 CREATE TABLE tblRates
436 (
437 RateID INT,
438 Rate VARCHAR(100)
439 )
440 GO
441
442 INSERT INTO tblRates (RateID, Rate)
443 VALUES (1,'1.123456789,2.1234567,3.12345')
444
445
446 --Current query, with the three rates split out (Fields: Rate1,Rate2,Rate3)
447 SELECT
448 Rate AS 'MasterRates'
449 ,'Rate1' = LEFT(Rate,CHARINDEX(',',Rate)-1)
450 ,'Rate2' =
451 LEFT(SUBSTRING(Rate,(CHARINDEX(',',Rate)+1),LEN(Rate)),CHARINDEX(',',SUBSTRING(Rate,(CHARINDEX(',',Rate)+1),LEN(Rate)))-1)
452 ,'Rate3' = SUBSTRING(Rate, ((LEN(LEFT(Rate,CHARINDEX(',',Rate)-1))+1) +
453 (LEN(LEFT(SUBSTRING(Rate,(CHARINDEX(',',Rate)+1),LEN(Rate)),CHARINDEX(',',SUBSTRING(Rate,(CHARINDEX(',',Rate)+1),LEN(Rate)))-1))+1))+1
454 ,LEN(Rate) )
455
456 --Fields for calculation reference.
457 ,'Rate1LengthIncDelimitter' = LEN(LEFT(Rate,CHARINDEX(',',Rate)-1))+1
458 ,'Rate2LengthIncDelimitter' =
459 LEN(LEFT(SUBSTRING(Rate,(CHARINDEX(',',Rate)+1),LEN(Rate)),CHARINDEX(',',SUBSTRING(Rate,(CHARINDEX(',',Rate)+1),LEN(Rate)))-1))+1
460 ,'Rate3StartingCharacterPostion' =
461 ((LEN(LEFT(Rate,CHARINDEX(',',Rate)-1))+1) +
462 (LEN(LEFT(SUBSTRING(Rate,(CHARINDEX(',',Rate)+1),LEN(Rate)),CHARINDEX(',',SUBSTRING(Rate,(CHARINDEX(',',Rate)+1),LEN(Rate)))-1))+1))+1
463 FROM tblRates
464
465 select RateID,
466 replace(parsename(replace(replace(
467 Rate, '.', '/'), ',', '.'), 3), '/', '.') AS 'A',
468 replace(parsename(replace(replace(
469 Rate, '.', '/'), ',', '.'), 2), '/', '.') AS 'B',
470 replace(parsename(replace(replace(
471 Rate, '.', '/'), ',', '.'), 1), '/', '.') AS 'C'
472 from tblRates
473
474 CREATE FUNCTION [dbo].[SPLIT] (
475
476 @str_in VARCHAR(8000),
477
478 @separator VARCHAR(4) )
479
480 RETURNS @strtable TABLE (strval VARCHAR(8000))
481
482 AS
483
484 BEGIN
485
486 DECLARE
487
488 @Occurrences INT,
489
490 @Counter INT,
491
492 @tmpStr VARCHAR(8000)
493
494 SET @Counter = 0
495
496 IF SUBSTRING(@str_in,LEN(@str_in),1) <> @separator
497
498 SET @str_in = @str_in + @separator
499
500 SET @Occurrences = (DATALENGTH(REPLACE(@str_in,@separator,@separator+'#')) - DATALENGTH(@str_in))/ DATALENGTH(@separator)
501
502 SET @tmpStr = @str_in
503
504 WHILE @Counter <= @Occurrences
505
506 BEGIN
507
508 SET @Counter = @Counter + 1
509
510 INSERT INTO @strtable
511
512 VALUES ( SUBSTRING(@tmpStr,1,CHARINDEX(@separator,@tmpStr)-1))
513
514 SET @tmpStr = SUBSTRING(@tmpStr,CHARINDEX(@separator,@tmpStr)+1,8000)
515
516
517 IF DATALENGTH(@tmpStr) = 0
518
519 BREAK
520
521
522 END
523
524 RETURN
525
526 END
527
528 GO
529
530 --
531 CREATE FUNCTION [dbo].[Split]
532 (
533 @pvcSearchString VARCHAR(8000),
534 @pvcSeparator VARCHAR(5)
535 )
536
537 RETURNS @strtable TABLE (strval VARCHAR(8000))
538
539 AS
540
541 BEGIN
542 DECLARE
543 @tmpStr VARCHAR(8000),
544 @intSeparatorLength INT
545
546 SET @intSeparatorLength = LEN(@pvcSeparator)
547
548 SET @tmpStr = @pvcSearchString
549 WHILE 1=1
550 BEGIN
551 INSERT INTO @strtable VALUES ( SUBSTRING(@tmpStr, 0 ,CHARINDEX(@pvcSeparator,@tmpStr)))
552 SET @tmpStr = SUBSTRING(@tmpStr,CHARINDEX(@pvcSeparator,@tmpStr)+LEN(@pvcSeparator),8000)
553 IF CHARINDEX(@pvcSeparator,@tmpStr) < 1
554 BREAK
555 END
556
557 RETURN
558 END
559
560 --
561 /*
562 Sample Delineated Data From [Col1]:
563 "Item 1 | Item 2 | Item 3"
564
565 Desired Target Result:
566 [ColItem1],[ColItem2],[ColItem3]
567 “Item 1”, Item 2”, Item 3”
568
569 Use the MS SQL PARSENAME function to achieve this. It’s a little backwards from how you think it should work, but follow this example to get the basic idea. PARSENAME can by used in similar fashion to a split function.
570
571 Sample Syntax (default delimited style):
572 */
573 Select
574 PARSENAME([Col1],3) as ColItem1
575 ,PARSENAME([Col1],2) as ColItem2
576 ,PARSENAME([Col1],1) as ColItem3
577 From [myTable]
578
579 --Sample Syntax (dealing with the pipe | ):
580
581 Select
582 PARSENAME(replace([Col1],'|','.'),3) as ColItem1
583 ,PARSENAME(replace([Col1],'|','.'),2) as ColItem2
584 ,PARSENAME(replace([Col1],'|','.'),1) as ColItem3
585 From [myTable]
586
587 ---split column with part of text string
588 CREATE TABLE myTable99(Col1 varchar(255))
589 GO
590
591 SET NOCOUNT ON
592 INSERT INTO myTable99(Col1)
593 SELECT 'name: johnson email: firstname: philip need: doc 12' UNION ALL
594 SELECT 'name: johnson email: pjohnson@yahoo.com firstname: philip need: doc 13'
595 GO
596
597 CREATE FUNCTION udf_GetString(@Col1 varchar(255), @tag varchar(255))
598 RETURNS varchar(255)
599 AS
600 BEGIN
601 DECLARE @str varchar(255)
602 SELECT @str = SUBSTRING(@Col1
603 , CHARINDEX(@tag,@Col1)+1+LEN(@tag)
604 , CHARINDEX(' ',Col1,CHARINDEX(@tag,@Col1)+1+LEN(@tag))-(CHARINDEX(@tag,@Col1)+1+LEN(@tag)))
605 FROM myTable99
606 RETURN @str
607 END
608 GO
609
610 SELECT dbo.udf_GetString(Col1,'firstname:')
611 , dbo.udf_GetString(Col1,'email:')
612 , dbo.udf_GetString(Col1,'need:')
613 , Col1
614 FROM myTable99
615 GO
616
617 DECLARE @tag varchar(255)
618 SELECT @tag = 'firstname:'
619 SELECT SUBSTRING(Col1
620 , CHARINDEX(@tag,Col1)+1+LEN(@tag)
621 , CHARINDEX(' ',Col1,CHARINDEX(@tag,Col1)+1+LEN(@tag))-(CHARINDEX(@tag,Col1)+1+LEN(@tag)))
622 FROM myTable99
623 SELECT @tag = 'email:'
624 SELECT SUBSTRING(Col1
625 , CHARINDEX(@tag,Col1)+1+LEN(@tag)
626 , CHARINDEX(' ',Col1,CHARINDEX(@tag,Col1)+1+LEN(@tag))-(CHARINDEX(@tag,Col1)+1+LEN(@tag)))
627 FROM myTable99
628 SELECT @tag = 'need:'
629 SELECT SUBSTRING(Col1
630 , CHARINDEX(@tag,Col1)+1+LEN(@tag)
631 , CHARINDEX(' ',Col1,CHARINDEX(@tag,Col1)+1+LEN(@tag))-(CHARINDEX(@tag,Col1)+1+LEN(@tag)))
632 FROM myTable99
633 GO
634
635
636 SET NOCOUNT OFF
637 DROP FUNCTION udf_GetString
638 DROP TABLE myTable99
639 GO
640
641 SELECT * FROM [dbo].[SPLIT]('1,2,3')
642
643
644 CREATE FUNCTION [dbo].[SPLIT]
645 (
646 @Text TEXT
647 )
648 RETURNS @output TABLE(
649 Item INT
650 )
651 BEGIN
652
653 DECLARE @start INT, @end INT , @Datalen INT
654
655
656 SELECT @start = 1,
657 @end = CHARINDEX(',', @Text),
658 @Datalen = DATALENGTH(@Text) + 1
659
660 WHILE @start < @Datalen BEGIN
661 IF @end <= @start BEGIN
662 SET @end = @Datalen
663 END
664
665 INSERT INTO @output (Item)
666 VALUES (SUBSTRING(@Text, @start, @end - @start))
667
668 SET @start = @end + 1
669 SET @end = CHARINDEX(',', SUBSTRING(@Text, @start,20)) + @start -1
670 END
671 RETURN
672 END
673
674
675
676 And here get 2 fields
677
678 SELECT * FROM [dbo].[SPLIT_2]('1_1,2_1,2_2')
679
680 CREATE FUNCTION [dbo].[SPLIT_2]
681 (
682 @Text TEXT
683 )
684 RETURNS @output TABLE(
685 Document_id INT,IndexOf int
686 )
687 BEGIN
688
689 DECLARE @start INT, @end INT , @Datalen INT ,
690 @Values VARCHAR(50), @Document VARCHAR(5),
691 @Index VARCHAR(5), @CharIndex INT
692
693 SELECT @start = 1,
694 @end = CHARINDEX(',', @Text),
695 @Datalen = DATALENGTH(@Text) + 1
696
697 WHILE @start < @Datalen BEGIN
698 IF @end <= @start BEGIN
699 SET @end = @Datalen
700 END
701
702 SET @Values = SUBSTRING(@Text, @start, @end - @start)
703 SET @CharIndex = CHARINDEX('_', @Values)
704
705 SET @Document = SUBSTRING(@Values,0,@CharIndex)
706 SET @Index = SUBSTRING(@Values,@CharIndex+1,5)
707
708 INSERT INTO @output (document_id , IndexOf)
709 VALUES (@Document,@Index)
710
711 SET @start = @end + 1
712 SET @end = CHARINDEX(',', SUBSTRING(@Text, @start,20)) + @start -1
713 END
714 RETURN
715
716
717 ---SQL: String Split Function
718 CREATE FUNCTION Split(@String varchar(4000), @Delimiter char(1))
719 RETURNS @Results TABLE (ID int, Items nvarchar(4000))
720 AS
721
722 BEGIN
723 DECLARE @INDEX INT
724 DECLARE @SLICE nvarchar(4000)
725 DECLARE @ID int
726
727 SELECT @INDEX = 1, @ID = 1
728 WHILE @INDEX !=0
729
730 BEGIN
731 -- GET THE INDEX OF THE FIRST OCCURENCE OF THE SPLIT CHARACTER
732 SELECT @INDEX = CHARINDEX(@Delimiter,@STRING)
733 -- NOW PUSH EVERYTHING TO THE LEFT OF IT INTO THE SLICE VARIABLE
734 IF @INDEX !=0
735 SELECT @SLICE = LEFT(@STRING,@INDEX - 1)
736 ELSE
737 SELECT @SLICE = @STRING
738 -- PUT THE ITEM INTO THE RESULTS SET
739 INSERT INTO @Results(ID, Items) VALUES(@ID, @SLICE)
740 SELECT @ID = @ID + 1
741 -- CHOP THE ITEM REMOVED OFF THE MAIN STRING
742 SELECT @STRING = RIGHT(@STRING,LEN(@STRING) - @INDEX)
743 -- BREAK OUT IF WE ARE DONE
744 IF LEN(@STRING) = 0 BREAK
745 END
746 RETURN
747
748 select Items from dbo.Split(@List, ',')
749
750 Create FUNCTION Split(@String varchar(4000), @Delimiter char(1))
751 RETURNS @Results TABLE (ID int, Items nvarchar(4000))
752 AS
753
754 BEGIN
755 DECLARE @INDEX INT
756 DECLARE @SLICE nvarchar(4000)
757 DECLARE @ID int
758
759 SELECT @INDEX = 1, @ID = 1
760 WHILE @INDEX !=0
761
762 BEGIN
763 -- GET THE INDEX OF THE FIRST OCCURENCE OF THE SPLIT CHARACTER
764 SELECT @INDEX = CHARINDEX(@Delimiter,@String)
765 -- NOW PUSH EVERYTHING TO THE LEFT OF IT INTO THE SLICE VARIABLE
766 IF @INDEX !=0
767 SELECT @SLICE = LEFT(@String,@INDEX - 1)
768 ELSE
769 SELECT @SLICE = @String
770 -- PUT THE ITEM INTO THE RESULTS SET
771 INSERT INTO @Results(ID, Items) VALUES(@ID, @SLICE)
772 SELECT @ID = @ID + 1
773 -- CHOP THE ITEM REMOVED OFF THE MAIN STRING
774 SELECT @String = RIGHT(@String,LEN(@String) - @INDEX)
775 -- BREAK OUT IF WE ARE DONE
776 IF LEN(@String) = 0 BREAK
777 END
778 Return
779 END
780
781
哲学管理(学)人生, 文学艺术生活, 自动(计算机学)物理(学)工作, 生物(学)化学逆境, 历史(学)测绘(学)时间, 经济(学)数学金钱(理财), 心理(学)医学情绪, 诗词美容情感, 美学建筑(学)家园, 解构建构(分析)整合学习, 智商情商(IQ、EQ)运筹(学)生存.---Geovin Du(涂聚文）
