How to rewrite this correlated subquery using joins
I have a correlates subquery. The query selects all bank customers with more than one bank account.
SELECT c.cust_id,c.cust_type_cd,c
WHERE 2 = (SELECT COUNT(*)
FROM account a WHERE a.cust_id = c.cust_id)
So my question is, how can I rewrite this query, so that is uses only joins?
SELECT c.cust_id,c.cust_type_cd,c
WHERE 2 = (SELECT COUNT(*)
FROM account a WHERE a.cust_id = c.cust_id)
So my question is, how can I rewrite this query, so that is uses only joins?
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There won't be any duplicates after using GROUP BY...