INSERT INTO market_data (variety, trade_date, open_price, close_price,
high_price, low_price, volume, change_rate, create_time, source)
VALUES (#{variety}, #{tradeDate}, #{openPrice}, #{closePrice},
#{highPrice}, #{lowPrice}, #{volume}, #{changeRate}, CURRENT_TIMESTAMP, #{source})
INSERT INTO market_data (variety, trade_date, open_price, close_price,
high_price, low_price, volume, change_rate, create_time, source)
VALUES
(#{item.variety}, #{item.tradeDate}, #{item.openPrice}, #{item.closePrice},
#{item.highPrice}, #{item.lowPrice}, #{item.volume}, #{item.changeRate}, CURRENT_TIMESTAMP, #{item.source})
DELETE FROM market_data