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Can I use the keyword "if" whil using cte

Mehram asked
Last Modified: 2012-05-11
Sql server 2005

The code written (snippet id = 8085622) has syntax error.

Can I use if keyword while using cte.

I can hadle the situation by using temp table but I am only interested if is it possible to use if with cte directly.

My pois is , to directly use a CTE immediately followed by an IF-ELSE construct. ...
declare @trans_no varchar(100)
;with vchr_balance as ( 
 select  debit = sum(debit) , credit = sum(credit)
     from  gl_vchr_det 
     where trans_no  = @trans_no 
if (select sum(debit) from vchr_balance) <> (select sum(debit) from vchr_balance)
      SET @msg = 'Voucher is not balanced? ' 
             + 'Debit amt = '  + convert(varchar,convert(money,(select sum(debit) from vchr_balance)),103)
             + 'Credit amt = ' + convert(varchar,convert(money,(select sum(credit) from vchr_balance)),103)
        RAISERROR (@msg,16,1)

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