sql - Join Table by previous top (max) date -

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i have following problem: have 2 tables, 1 accounts table transactions in (there can multiple transactions in sigle day), table account balances (where balance @ end of day recorded; since tranactions don't occur everyday balance table has date 'gaps' like: 2014-01-05 800 usd next row 2014-02-03 600 usd). need join tables initial balance of day (max previous date in balance table).

select client_id, transaction_id, amount, date transactions

balance table:

select client_id, date, balance balance

i need like

select *  transactions t     inner join balance b on b.client_id = t.client_id , t.date > b.date

(here should previous max date)

select *  transactions t     inner join balance b             on b.client_id = t.client_id            , t.date = (select max (bl.date)                          balance bl                          t.client = bl.client_id                          , bl.date < t.date)


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