sql - Filter top by group -

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we have following situation query in oracle.

we have orders , transactions, order being mapped multiple transactions.

order orderid|customer|.....  transaction orderid|transactionid|transactiondate|.....

we need display latest transaction each order. how go in oracle 11g?

this 1 method

select t1.* transactions t1 inner join ( select orderid,max(transactiondate) transactiondate transactions group orderid ) t2 on o.orderid=t.orderid , t1.transactiondate =t2.transactiondate

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