我使用SQL齐心协力像这样的表:SQL - 组由部分字符串在SQL
person flavour purchase
andy likes-orange_hates-vanilla $5
george likes-orange_hates-icecream $5
gena likes-vanilla_hates-bourban $2
gena likes-vanilla_hates-bourban $4
是否有可能从去:
total
likes-orange $10
likes-vanilla $6
即使更好的是
total av. purchase size av. purchases per person total people
likes-orange $10 $5 1 2
likes-vanilla $6 $3 2 1
我只能访问一个phpmyadmin。
这是你查询的源表或结果? – 2012-02-21 17:23:48
规范你的数据库。 – YXD 2012-02-21 17:24:47