[英]sql - group by parts of a string in sql
I'm using sql to pull together a table like this: 我正在使用sql将这样的表拉到一起:
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
Is it possible to go from that to: 有可能从那里走到:
total
likes-orange $10
likes-vanilla $6
even better would be 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
I just have access to a phpmyadmin. 我只能访问phpmyadmin。
尝试
select substring_index(flavor,'_',1), sum(purchase) from table group by 1
In SQL 2005+ 在SQL 2005+中
Following can be used : 以下可以使用:
Select Tbl1.Email, Count(1) FROM (
Select substring(EmailAdd,CHARINDEX('@',EmailAdd),Len(EmailAdd)-CHARINDEX('@',EmailAdd)) as 'Email'
from TableName
) Tbl1 Group By Tbl1.Email
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