>

>SELECT * FROM mytable ;
>WHERE (fieldname1 = Myvalue1 and fieldname2 = Myvalue2) AND ;
>(fieldname1 = Myvalue3 and fieldname2 = Myvalue4) AND ;
>fiedlname1 = Myvalue5 and fieldname2 = Myvalue6 ;
>INTO CURSOR mycursor
>
>IF _TALLY > 0
>   MESSAGEBOX("SUCCESS!")
>ELSE
>  *--DO WATEVER
>ENDIF
>
>

This select will find no records ever because fieldname1 will never equal MyValue1 and MyValue3 for any one record.