Re: Suggestion with SQL query

Hi
Union distinct works if the value is same, but does
not work if the values are different
For example
T1 has data as below
id Type value
schd test abc
schd test1 abc1

T2 has data
id Type value user
schd test xyz myid

in this case i get result as
id Type value
schd test xyz
schd test abc
schd test1 abc1


Ashish

--- Michael_Schutte@xxxxxxxxxxxx wrote:

I'm sorry I may have mislead you there. You
probably want to go more this
route. This obviously haven't been tested.

Select * from t2
Union distinct
Select * from t1




Michael Schutte
Admin Professional
Bob Evans Farms, Inc.
"The Secret's the Sauce! Enjoy our new Bob-B-Q
Pulled Pork Knife & Fork
Sandwich!"


java400-l-bounces@xxxxxxxxxxxx wrote on 11/05/2007
10:37:05 AM:

Select * from t1 where not exists(select '1' from

t2 where t1.id = t2.id

and t1.type = t2.type and t1.value = t2.value)


Michael Schutte
Admin Professional
Bob Evans Farms, Inc.
"The Secret's the Sauce! Enjoy our new Bob-B-Q

Pulled Pork Knife & Fork

Sandwich!"


java400-l-bounces@xxxxxxxxxxxx wrote on 11/05/2007

10:34:02 AM:

Hi
I need some suggestion with sql query
I have 2 table
T1 which has columns
id, type, value
And
T2 has columns
id, type, value, user

T1 has data as below
id Type value
schd test abc
schd test1 abc1

T2 has data
id Type value user
schd test xyz myid

I want to write a SQL to get data from T1 if

there is

no record in T2, The value in T2 may be

different from

T1.

So my result after the query will be
(i dont need user id)
id Type value
schd test xyz (this comes from T2)
schd test1 abc1 (this comes from T1)

Any suggestions

Ashish





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