下文将教您在数据库中如何使用SQL查询连续号码段的方法,供您参考,如果您对SQL查询方面感兴趣的话,不妨一看,对您会有所帮助。
有一个表结构,
fphm,kshm
2014,00000001
2014,00000002
2014,00000003
2014,00000004
2014,00000005
2014,00000007
2014,00000008
2014,00000009
2013,00000120
2013,00000121
2013,00000122
2013,00000124
2013,00000125
(第二个字段内可能是连续的数据,可能存在断点。)
- SQL> SELECT b.fphm, MIN (b.kshm) Start_HM, MAX (b.kshm) End_HM
- 2 FROM (SELECT a.*, TO_NUMBER (a.kshm - ROWNUM) cc
- 3 FROM (SELECT *
- 4 FROM t
- 5 ORDER BY fphm, kshm) a) b
- 6 GROUP BY b.fphm, b.cc
- 7 /
- FPHM START_HM END_HM
- ---------- -------- --------
- 2013 00000120 00000122
- 2013 00000124 00000125
- 2014 00000001 00000005
- 2014 00000007 00000009
查询结果:
2014,00000001,00000005
2014,00000009,00000007
2013,00000120,00000122
2013,00000124,00000125
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