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one query and one result set

select * from a_messages where profile_id='username' order by message_id desc
select * from a_messages2 where profile_id='username' order by message_id desc


want one query with one result set because tables have same structure
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rgb192
Asked:
rgb192
3 Solutions
 
plusone3055Commented:
select * from a_messages where profile_id='username' order by message_id desc
UNION
select * from a_messages2 where profile_id='username' order by message_id desc
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Guy Hengel [angelIII / a3]Billing EngineerCommented:
use UNION ALL:
select * from a_messages where profile_id='username' 
UNION ALL
select * from a_messages2 where profile_id='username' 
order by message_id desc 

Open in new window

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plusone3055Commented:
#@(*&Q#(*(&$ ANGELLLL!!!!!!

LOL

one misype :(
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Guy Hengel [angelIII / a3]Billing EngineerCommented:
note: UNION ALL will not try to do an implicit DISTINCT, so unless you really want to do that, ALWAYS use union all.
and order by is only at the end of the query, so you cannot do the "per" table, but only once per "result", so the comment before mine is unfortunately incorrect in that regards ...
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Steve WalesSenior Database AdministratorCommented:
Not necessarily a mistype.

UNION returns a distinct result set (does not show duplicates).
UNION ALL returns all rows, regardless of duplicates.

Depends what the original poster wants in the result set, I suppose :)
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plusone3055Commented:
i know its a monday I wasn't quite awake yet and i dont drink coffee
  :)
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rgb192Author Commented:
http://www.experts-exchange.com/M_4365474.html

Error Code: 1221. Incorrect usage of UNION and ORDER BY


second query worked

thanks for explanations also
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