> 
> 
> 
> Consider this:
> 
> v_age, v_name, v_eno are 3 variables.
> 
> 
> Exec sql Select age into :v_age from temp where name = :v_name and eno
> = :v_eno;
> 
> Suppose: 
> v_name ="rama" 
> v_eno = NULL
> 
> 
> Table: temp
> 
> Suppose the values in my table are, 
> Name = rama 
> Eno = NULL 
> Age = 23
> 
> 
> The prob is it does not retrieve 23 from the table. 
> The prob is I cannot give eno is NULL as I donât know (in practice)
> whether the field will be NULL.
> 
> Digvijoy Chatterjee

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