topic Re: Operators: Or/And in Application Development and Automation Discussions

Operators: Or/And

Former Member — Wed, 30 Jan 2008 21:32:25 GMT

In my logic I do not want to send a message out when the doc types DO NOT EQUAL either 'AB' 'AN' 'ICLP' 'LU'.

I always get confused betweeen 'OR' and 'AND'

My logic: Is it right? Is there a better way to write the code?

if i_ekko-bsart NE 'AB' or

i_ekko-bsart NE 'AN' or

i_ekko-bsart NE 'ICLP' or

i_ekko-bsart NE 'LU'.

MESSAGE E054(ZS) WITH 'Message out here'

endif.

Thank-You

Re: Operators: Or/And

uwe_schieferstein — Wed, 30 Jan 2008 23:16:50 GMT

Hello Tom

I get confused, too, if the conditions become too complex. Therefore I try to convert the logic and get rid of NOT conditions.

In your case the condition is: "If the doc type equals either of the following types:... then send a message."


  IF ( i_ekko-bsart = 'AB'     OR
        i_ekko-bsart = 'AN'   OR
        i_ekko-bsart = 'ICLP'    OR
        i_ekko-bsart = 'LU' ).
    MESSAGE E054(zs) WITH 'Wrong doc type' .
 ELSE.
...
 ENDIF.

Regards

Uwe

Re: Operators: Or/And

Former Member — Thu, 31 Jan 2008 04:35:44 GMT

Hi,

OR:

can be used to check whether any of the conditions are true.

ie.,

... log_exp1 OR log_exp2 OR log_exp3 ...

Effect

If you link multiple logical expressions log_exp with OR, then a new logical expression is created which is true if at least one of the logical expressions log_exp is true. Only if all logical expressions are false, then the link is false as well.

AND:

can be used to check whether all the conditons are satisfied.

... log_exp1 AND log_exp2 AND log_exp3 ...

Effect

The linking of several logical expressions log_exp with AND forms a new logical expression that is true when all logical expressions log_exp are true. If one of the logical expressions is false, then the link is also false.

You have used the right logic

Regards,

Renjith Michael.