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mike123
Master Smack Fu Yak Hacker
1462 Posts |
 Posted - 2004-03-11 : 04:50:14
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| I have a mailbox feature on a website I am working on in which people are increasingly using to spam other members. Whats the best way for me to select all rows in a table where there are more than 5 rows of the same message?Thanks again for any helpmike123 |
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nr
SQLTeam MVY
12543 Posts |
Posted - 2004-03-11 : 05:22:44
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| select t1.*from tbl t1join (select msg from tbl group by tbl having count(*) > 5) t2on t1.msg = t2.msg==========================================Cursors are useful if you don't know sql.DTS can be used in a similar way.Beer is not cold and it isn't fizzy. |
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Frank Kalis
Constraint Violating Yak Guru
413 Posts |
Posted - 2004-03-11 : 05:27:23
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| [code]SELECT MsgSubjectFROM mails_headerGROUP BY MsgSubjectHAVING COUNT(*) > 5[/code]might be a starting point. In your case it should be more tricky as most spams have a random number or string in their subject line.Maybe you can query your table for how many mails soneone has sent?HTH--Frankhttp://www.insidesql.de |
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detecting spam