SQL ACCESS (need ideas and help about a query) -
i new @ access sql , need query. want find customers prefer car (manufacturer , model) prefer_to_buy
, prefer_to_rent
no 1 else prefer.
for example if 2 customers prefer toyota aygo must not in result table.
customer(customer_id,name)
prefer_to_buy(customer_id,manufacturer,model)
prefer_to_rent(customer_id, manufacturer,model)
i have tried lot of ways including exists , know there must 2-3 subqueries cant work, ideas?
your problem definition vague, answer sort of generic. should try create left outer join on customer
table and, example, "prefer_to_buy
" table using customer_id
join field, , include: customer_id,name
left table , manufacturer,model
right table. same logic applies prefer_to_rent
table: can combine these 3 tables in single access sql query using aforementioned outer joins.
hope may help. best regards,enter code here
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