[RESOLVED] Record fields comparison

hi again guys, i just want to know if its possible to match a database record to another record which is quite different. for example employeeA both belongs to all this group which is GroupA, GroupB,and Group C. now the user will send a message to only Group A and Group C. logically, employeeA should have received that message coz he belongs to both group. however, the code i had accomplished doesn't get this result, it will only received the message if it will be sent to all three groups. please just ask me if something's not clear. :(

thanks guys..