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select two tables

Author

Topic

amirs
Constraint Violating Yak Guru

260 Posts

Posted - 2008-11-24 : 06:15:12

hi
in two table how to select all records in first table and select record in second table which is not exists in first table

LoztInSpace
Aged Yak Warrior

940 Posts

Posted - 2008-11-24 : 06:21:11

select * from bol
union all
select * from bol2 where not exists (select 1 from bol where bol.pk=bol2.pk)

visakh16
Very Important crosS Applying yaK Herder

52326 Posts

Posted - 2008-11-24 : 06:34:06

[code]select *
from(
select pk,othercols..,1 as cat from bol
union all
select pk,othercols..,2 from bol2
)t
group by pk
having count(distinct cat)=1[/code]

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