Harvinder,
Let's see what we can come up with:
insert into t_suspended_txn
select 'A', 'B'
from dual
where exists (select col1 from t_suspended_txn where col2 = 'A')
Although I don't honestly know if "dual" exists in SQL Server (in Oracle
it's a single row, single column table - you could easily create a "dual"
in SQL Server), otherwise:
insert into t_suspended_txn
select distinct 'A', 'B'
from t_suspended_txn where col2 = 'A'
This would work but might do an unnecessarily large sort if t_suspended_txn
contains many rows, otherwise:
insert into t_suspended_txn
select 'A', 'B'
from t_suspended_txn where col2 = 'A' and rownum = 1
Although again, I don't know if SQL Server supports "rownum" as a pseudo
column.
Hopefully I've given enough ideas to find something that works though.
Cheers,
Mark.
"Harvinder Singh"
<Harvinder.Singh@Metr To: Multiple recipients of list
ORACLE-L <[EMAIL PROTECTED]>
aTech.com> cc:
Sent by: Subject: how to modify query
[EMAIL PROTECTED]
05/12/2002 06:04
Please respond to
ORACLE-L
Hi,
Following code works in sql server but IF NOT EXISTS dosn't work in oracle
how can we modify this code so that it should work on both sql server and
oracle
if not exists (
select
col1
from
t_suspended_txn
where
col2 ='A'
begin
insert into t_suspended_txn
select 'A' , 'B'
end
Thanks
--Harvinder
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