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如何限制mysql中变量的增量

来源:互联网 

here's my table....

这是我的桌子......

+----+--------+---------+------------+
| id | idName | fldName | fld_Date   |
+----+--------+---------+------------+
|  1 |      1 | Marlon  | 2013-06-03 |
|  2 |      1 | Marlon  | 2013-06-05 |
|  3 |      1 | Marlon  | 2013-06-07 |
|  4 |      1 | Marlon  | 2013-06-08 |
|  5 |      1 | Marlon  | 2013-06-11 |
|  6 |      2 | Dawn    | 2013-06-03 |
|  7 |      2 | Dawn    | 2013-06-06 |
|  8 |      2 | Dawn    | 2013-06-08 |
|  9 |      2 | Dawn    | 2013-06-11 |
| 10 |      2 | Dawn    | 2013-06-15 |
| 11 |      3 | Jenny   | 2013-06-15 |
| 12 |      3 | Jenny   | 2013-06-19 |
| 13 |      3 | Jenny   | 2013-06-14 |
| 14 |      3 | Jenny   | 2013-06-21 |
+----+--------+---------+------------+
+----+----



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