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table1  a     b     c

        1     2     3

        1     2     5

        2     3     4
        ....

only combine rows with the same a and b: Desired result:

table2  a     b     c

       1     2     3,5

       2     3     4
       ....

How? The real table contains like 15 fields, and want to combine rows base on 5 fields.

Fate Riddle
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  • I hope this is for presentation only... Never, ever store data as comma separated items. It will only cause you lots of trouble. – jarlh Sep 27 '16 at 09:34
  • When you say combine, are you referring to eliminating rows from one table or the other, or simply for display purposes? – LogicalMan Sep 27 '16 at 11:28

0 Answers0