Hi. I have the following test db/tbl setup. stateTBL +--------------+ | stateName | | stateID |>>>>>>>+ +--------------+ V V V collegeTBL V +--------------+ V | collegeName | V | stateID |<<<<<<<+ | collegeID |>>>>>>>+ +--------------+ V V V deptTBL V +--------------+ V | deptName | V | collegeID |<<<<<<<+ | deptID |>>>>>>>+ +--------------+ V V V courseTBL V +--------------+ V | courseName | V | deptID |<<<<<<<+ | courseID |>>>>>>>+ +--------------+ V V V facultyTBL V +--------------+ V | facultyName | V | courseID |<<<<<<<+ | ID | +--------------+ my intended app will allow the user to select a given item (college, dept, course, faculty) and to store this data. when a user is displaying a list of items, i'd like to have my app determine if the child of the item has been selected by the user. so. if a user has selected stanford, i'd like to be able to have a query that returns 'true' for any item, that has a 'child' (leaf) already selected by the user. (this should work for any level of childTBL) so if a user has selected a course, from the stanford, physics dept, physics 101, i'd like to have a query that returns 'true' if the user selects 'stanford' from the list of colleges... i can't quite seem to figure out the sql to make it happen... thoughts/comments/etc.. i'm hoping that this makes sense!! thanks -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php