sql server 2008:从字段中选择子字符串
以下是示例数据：sql server 2008:从字段中选择子字符串,sql,sql-server-2008,Sql,Sql Server 2008,以下是示例数据： 10914_Excel Short Summary.xls F:\MassHunter\DATA\10921_PAIN\QuantResults\10921_PAIn.batch.bin 10918_Excel Short Summary.xls 10923_Excel Short Summary.xls 10922_Excel Short Summary.xls 10913_Excel Short Summary.xls 10912R_Excel Short Summary
10914_Excel Short Summary.xls
F:\MassHunter\DATA\10921_PAIN\QuantResults\10921_PAIn.batch.bin
10918_Excel Short Summary.xls
10923_Excel Short Summary.xls
10922_Excel Short Summary.xls
10913_Excel Short Summary.xls
10912R_Excel Short Summary.xls
F:\MassHunter\DATA\10907_PAIN\QuantResults\10907_PAIN.batch.bin
F:\MassHunter\DATA\10915_PAIN\QuantResults\10915_PAIN.batch.bin
F:\MassHunter\DATA\10909_PAIN\QuantResults\10909_PAIN.batch.bin
F:\MassHunter\DATA\10914_PAIN_new\QuantResults\10914_PAIN_new.batch.bin
F:\MassHunter\DATA\10911_PAIN\QuantResults\10911_PAIN.batch.bin
C:\Documents and Settings\Michelle Miller\Desktop\10917_PAIN\QuantResults\10917_PAIN.batch.bin
F:\MassHunter\DATA\10913_PAIN\QuantResults\10913_PAIN.batch.bin
C:\Sergey\10923_PAIN\QuantResults\10923_pain.batch.bin
C:\Documents and Settings\Michelle Miller\Desktop\10922_PAIN\QuantResults\10922_PAIN.batch.bin
C:\Sergey\10919_PAIN\QuantResults\10919_pain.batch.bin
D:\Marina\10920_PAIN\QuantResults\10920_PAIN.batch.bin
D:\Marina\10925_PAIN\QuantResults\10925_PAIN.batch.bin
D:\Marina\10937_PAIN\QuantResults\10937_PAIN.batch.bin
10925_Excel Short Summary.xls
10924_Excel Short Summary.xls
10925_Excel Short Summary_100727092302.xls
10925_THC_Excel Short Summary.xls
F:\MassHunter\DATA\10924_PAIN\QuantResults\10924_pAIN.batch.bin
10924_THC_Excel Short Summary.xls
10926_Excel Short Summary.xls
10927_Excel Short Summary.xls
10928_Excel Short Summary.xls
10929_Excel Short Summary.xls
10930_Excel Short Summary.xls
10931_Excel Short Summary.xls
10932_Excel Short Summary.xls
10933_Excel Short Summary.xls
10934_Excel Short Summary.xls
10935_Excel Short Summary.xls
10936_Excel Short Summary.xls
F:\MassHunter\DATA\10926_PAIN\QuantResults\10926_PAIN.batch.bin
F:\MassHunter\DATA\10938_PAIN\QuantResults\10938_Pain.batch.bin
F:\MassHunter\DATA\10928_PAIN\QuantResults\10928_PAIN.batch.bin
C:\LSR Data\10940_PAIN\QuantResults\10940_PAIN.batch.bin
10927_THC_Excel Short Summary.xls
10930_THC_Excel Short Summary_100727112433.xls
F:\MassHunter\DATA\10932_PAIN\QuantResults\10932_PAIN.batch.bin
10926_THC_Excel Short Summary_100727113358.xls
10929_THC_Excel Short Summary.xls
10928_THC_Excel Short Summary.xls
10931_THC_Excel Short Summary.xls
10932_THC_Excel Short Summary_100727114507.xls
F:\MassHunter\DATA\10939_PAIN\QuantResults\10939_PAIN.batch.bin
10947_Excel Short Summary.xls
10948_Excel Short Summary.xls
10949_Excel Short Summary.xls
10933_THC_Excel Short Summary.xls
10934_THC_Excel Short Summary.xls
10937_Excel Short Summary.xls
10938_Excel Short Summary.xls
10939_Excel Short Summary.xls
10942_Excel Short Summary.xls
F:\MassHunter\DATA\10927_PAIN\QuantResults\10927_PAIN.batch.bin
10940_Excel Short Summary.xls
F:\MassHunter\DATA\10931_PAIN\QuantResults\10931_PAIN.batch.bin
F:\MassHunter\DATA\10929_PAIN\QuantResults\10929_PAIN.batch.bin
10935_THC_Excel Short Summary.xls
10937_THC_Excel Short Summary.xls
10938_THC_Excel Short Summary.xls
10950_Excel Short Summary.xls
F:\MassHunter\DATA\10941_PAIN\QuantResults\10941_PAIN.batch.bin
10947_THC_Excel Short Summary.xls
10949_THC_Excel Short Summary.xls
F:\MassHunter\DATA\10934_PAIN\QuantResults\10934_PAIN.batch.bin
10950_THC_EXCEL SHORT SUMMARY.XLS_Final.xls
10940_THC_Excel Short Summary.xls
F:\MassHunter\DATA\10935_PAIN\QuantResults\10935_PAIN.batch.bin
F:\MassHunter\DATA\10942_PAIN\QuantResults\10942_PAIN.batch.bin
F:\MassHunter\DATA\10933_PAIN\QuantResults\10933_PAIN.batch.bin
10941_Excel Short Summary.xls
10939_THC_Excel Short Summary.xls
10941_THC_Excel Short Summary.xls
10942_THC_Excel Short Summary.xls
F:\MassHunter\DATA\10936_PAIN\QuantResults\10936_PAIN.batch.bin
F:\MassHunter\DATA\10950_PAIN\QuantResults\10950_PAIN.batch.bin
F:\MassHunter\DATA\10949_PAIN\QuantResults\10949_PAIN.batch.bin
10950_THC_Excel Short Summary.xls
F:\MassHunter\DATA\10930_PAIN\QuantResults\10930_PAIN.batch.bin
F:\MassHunter\DATA\10948_PAIN\QuantResults\10948_PAIN.batch.bin
10936_THC_Excel Short Summary.xls
10948_THC_Excel Short Summary.xls
10966_THC_Excel Short Summary.xls
10964_THC_Excel Short Summary.xls
F:\MassHunter\DATA\10947_R_PAIN\QuantResults\10947_R_PAIN.batch.bin
10960_THC_Excel Short Summary.xls
10958_Excel Short Summary.xls
10963_THC_Excel Short Summary.xls
10962_THC_Excel Short Summary.xls
10959_Excel Short Summary.xls
10961_THC_Excel Short Summary.xls
10960_Excel Short Summary.xls
10959_THC_Excel Short Summary.xls
10961_Excel Short Summary.xls
10962_Excel Short Summary.xls
10963_Excel Short Summary.xls
10967_THC_Excel Short Summary.xls
10964_Excel Short Summary.xls
10968_THC_Excel Short Summary.xls
10965_Excel Short Summary.xls
10969_THC_Excel Short Summary.xls
10970_THC_Excel Short Summary.xls
F:\MassHunter\DATA\10958_PAIN_new\QuantResults\10958_PAIN.batch.bin
F:\MassHunter\DATA\10964_PAIN\QuantResults\10964_PAIN.batch.bin
F:\MassHunter\DATA\10966_PAIN\QuantResults\10966_PAIN.batch.bin
F:\MassHunter\DATA\10981_PAIN\QuantResults\10981_PAIN.batch.bin
10958_THC_Excel Short Summary.xls
10965_THC_Excel Short Summary.xls
F:\MassHunter\DATA\10963_PAIN\QuantResults\10963_PAIN.batch.bin
10971_THC_Excel Short Summary.xls
10972_THC_Excel Short Summary.xls
10966_Excel Short Summary.xls
F:\MassHunter\DATA\10961_PAIN\QuantResults\10961_PAIN.batch.bin
10967_Excel Short Summary.xls
F:\MassHunter\DATA\10962_PAIN\QuantResults\10962_PAIN.batch.bin
10968_Excel Short Summary.xls
F:\MassHunter\DATA\10965_PAIN\QuantResults\10965_PAIN.batch.bin
10969_Excel Short Summary.xls
10970_Excel Short Summary.xls
10914
10921
10918
10923
10922
10913
10912
10907
10915
...
...
select column from table where column...
将其分解为两个步骤： 丢弃所有数字，直到数字的开头，我假设最少有3个数字 然后把所有的数字都取到下一个非数字数字 左边需要一个CASE，数字在末尾，因为PATINDEX将返回零
DECLARE @MyTable TABLE (bigstring varchar(200))
INSERT @MyTable VALUES ('F:\MassHunter\DATA\6897_Pan_1\QuantResults\6897_Pan_1.batch.bin')
INSERT @MyTable VALUES ('F:\MassHunter\DATA\6897_Pan_1\QuantResults\6897_Pan_1.batch.bin')
INSERT @MyTable VALUES ('10914_Excel Short Summary.xls')
SELECT --assumes number not at end of string
LEFT(startOf, PATINDEX('%[^0-9]%', startof)-1)
FROM
(
SELECT --assumed 3 digits minimum
SUBSTRING(bigstring, PATINDEX('%[0-9][0-9][0-9]%', bigstring), 8000) AS startOf
FROM
@MyTable
) foo
将其分解为两个步骤： 丢弃所有数字，直到数字的开头，我假设最少有3个数字 然后把所有的数字都取到下一个非数字数字 左边需要一个CASE，数字在末尾，因为PATINDEX将返回零
DECLARE @MyTable TABLE (bigstring varchar(200))
INSERT @MyTable VALUES ('F:\MassHunter\DATA\6897_Pan_1\QuantResults\6897_Pan_1.batch.bin')
INSERT @MyTable VALUES ('F:\MassHunter\DATA\6897_Pan_1\QuantResults\6897_Pan_1.batch.bin')
INSERT @MyTable VALUES ('10914_Excel Short Summary.xls')
SELECT --assumes number not at end of string
LEFT(startOf, PATINDEX('%[^0-9]%', startof)-1)
FROM
(
SELECT --assumed 3 digits minimum
SUBSTRING(bigstring, PATINDEX('%[0-9][0-9][0-9]%', bigstring), 8000) AS startOf
FROM
@MyTable
) foo
总是4位数？你想把整个专栏都删掉，还是只在上面搜索？@gbn对不起，我更新了这个问题。它并不总是四位数。我只想从column@i我是个女孩，不清楚你想做什么-从列中检索所有数字数据，检索文件名的前五个字符（不包括文件路径），在每行随机生成一个五位数。。。请你澄清一下你想要达到的目标。总是4位数？你想把整个专栏都删掉，还是只在上面搜索？@gbn对不起，我更新了这个问题。它并不总是四位数。我只想从column@i我是个女孩，不清楚你想做什么-从列中检索所有数字数据，检索文件名的前五个字符（不包括文件路径），在每行随机生成一个五位数。。。请你澄清一下你想要达到的目标。@JNK:谢谢。请允许我评论一下您在一个名为“我是一个女孩”的用户中使用他的情况：-@gbn-刚刚捕捉到并在您键入时修复了它：@gbn非常感谢，我如何只选择大于3个字符的大字符串？我正在尝试此操作，但不是wokring select-假设数字不在字符串LEFTstartOf的末尾，PATINDEX“[^0-9]”，startof-1 FROM SELECT-假定最小3位子字符串datapath，PATINDEX“%[0-9][0-9][0-9]”，datapath，8000作为startof FROM SELECT DATAPH FROM batchinfo，其中LENdatapath>3根据需要扩展[0-9][0-9][0-9]。这只是最小长度，不是固定长度。@JNK:谢谢。请允许我评论一下您在一个名为“我是一个女孩”的用户中使用他的情况：-@gbn-刚刚捕捉到并在您键入时修复了它：@gbn非常感谢，我如何只选择大于3个字符的大字符串？我正在尝试此操作，但不是wokring select-假设数字不在字符串LEFTstartOf的末尾，PATINDEX“[^0-9]”，startof-1 FROM SELECT-假定最小3位子字符串datapath，PATINDEX“%[0-9][0-9][0-9]”，datapath，8000作为startof FROM SELECT DATAPH FROM batchinfo，其中LENdatapath>3根据需要扩展[0-9][0-9][0-9]。这只是一个最小长度，不是固定长度。