Re: Zero lenght identifier............

xmark.powell_at_eds.com.x a écrit dans le message <9crq49$b73$1_at_news.netmar.com>...
>In article <9cr9fd$7q7$1_at_reader1.imaginet.fr>, dbl
 <homer.simpson_at_mailbox.as>
>writes:
>>Hello!
>>I'm trying to add a test in my PL/SQL script, like this :
>>
>>if '&5' = ''
>>then .....................
>>
>>or :
>>value := '&5'
>>
>>if value = ''
>>then ..........
>>
>>BUT : no way.............. i'm actually unable to pass through this 'IF'
>>...........
>>
>>As I'm not a PL/SQL expert, does anyone have an idea ???????
>>
>>
>>Thanks a Lot :-)
>>
>Since null is the absence or an unknown value then logically nothing can
 ever
>test equal to it!
>
>v_variale := &var;
>if v_variable is null then ....
>
>Pl/sql is sloppy and lets you get away with the syntax but in the manual
>Oracle warns you not to code if var = null type statements. We have more
>than a few of these to contend with outselves.
>
>-- Mark D Powell --

Ok , it's true, I wonder how I did not think of

this........................!

thanks a lot !

dbl Received on Thu May 03 2001 - 09:49:46 CDT