I have a simple problem thats causing me grief
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basically i have 4 tables, Patient, Loan, Equipment and Repair..... i need a query that will pick out only equipment that is not on loan or being repaired... i think im ok with the relationships and attributes i have primary and foreign keys etc.... i have loan date and return date....and repair date and return from repair date..... but i cant get the query to work.... the main problem is picking out equipment that has never been on loan or repaired? any help will be gratefully recieved
)
basically i have 4 tables, Patient, Loan, Equipment and Repair..... i need a query that will pick out only equipment that is not on loan or being repaired... i think im ok with the relationships and attributes i have primary and foreign keys etc.... i have loan date and return date....and repair date and return from repair date..... but i cant get the query to work.... the main problem is picking out equipment that has never been on loan or repaired? any help will be gratefully recieved