Hi Fabio,

So... it looks asif it acts upon two aliases because of the use of SET RELATION. One more reason to be cautious when encountering the function in someone else's code (or our own old code :), since it makes the function even more confusing and difficult to read.

>>Hi All,
>>
>>Here's some code someone else wrote.
>>

LOOKUP( EmpFcur.Both, M.EmpNo, EmpFcur.EmpNo, 'EMP' )

>>It looks up a value in the alias EmpFcur. It appears to work, even if EmpFcur is not the currently selected alias. I assume it is an undocumented, and very handy, feature.
>>
>>Any comments?
>
>You see the phrase "current selected work area" ? no
>
>LOOKUP has other property beneficial (or maleficent if they are not known!):
>

>CREATE CURSOR master ( aa i DEFAULT RECCOUNT())
>APPEND BLANK
>APPEND BLANK
>CREATE CURSOR child ( aa i,bb i)
>INSERT INTO child values (0,-1)
>INSERT INTO child VALUES (1,-2)
>INDEX ON aa TAG taa
>SET RELATION TO aa INTO child IN master
>? LOOKUP(child.bb,1,master.aa)
>? LOOKUP(child.bb,0,master.aa)
>CLOSE TABLES ALL
>