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db2 sql query

 
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balajipradeep

New User


Joined: 12 Mar 2009
Posts: 21
Location: chennai

PostPosted: Fri May 21, 2010 3:02 pm    Post subject: db2 sql query
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Hi,

I have to write one sql query to see the policy number and plan id available in the DB2 table.Each policy number has the separate plan id.

For example:

Policy plan

a 1
b 4
c 6
d 5
e 1

select policy,plan where policy,plan=(a,1)(?) -

i want the list of policy to be checked in the single query.
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guptae

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Joined: 14 Oct 2005
Posts: 1187
Location: Bangalore,India

PostPosted: Fri May 21, 2010 3:21 pm    Post subject:
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Hello There,

I am not sure whetehr I understand your query correctly but check below query

Code:
SELECT POLICY,
            PLAN
FROM  TABLE
WHERE (POLICY= 'a' and PLAN= 1) OR
            (POLICY= 'b' and PLAN= 4) OR
...
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balajipradeep

New User


Joined: 12 Mar 2009
Posts: 21
Location: chennai

PostPosted: Fri May 21, 2010 4:21 pm    Post subject:
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Thanks. I also tried the same way.
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GuyC

Senior Member


Joined: 11 Aug 2009
Posts: 1281
Location: Belgium

PostPosted: Fri May 21, 2010 5:40 pm    Post subject:
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values ((a,1),(b,4)) isn't supported (yet) on z/OS

the simpliest way to do it is with the OR clauses like guptae said

for performance reasons you could try

Code:
with input (pol,plan) as (
select 'a',1 from sysibm.sysdummy1
union all
select 'b',4 from sysibm.sysdummy1
union all
...
)

select a.pol, a.plan from table1 A, input
where (input.pol,input.plan) = (a.pol,a.plan)

or the old fashioned way :
Code:
select a.pol, a.plan from table1 A where pol = 'a' and plan =1
union all
select a.pol, a.plan from table1 A where pol = 'b' and plan =4
union all
...
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