use BackTest; CREATE TABLE `TB_Trade` ( `Id` varchar(255) DEFAULT NULL, `symbol` varchar(20) DEFAULT NULL, `orderRef` int(11) DEFAULT '0', `tradeID` int(11) DEFAULT '0', `direction` tinyint(4) DEFAULT NULL, `offset` tinyint(4) DEFAULT NULL, `price` float DEFAULT NULL, `volume` int(11) DEFAULT NULL, `tradeTime` datetime DEFAULT NULL, `amount` float DEFAULT '0', `fee` float DEFAULT '0', `profit` float DEFAULT '0', `profitRate` float DEFAULT '0' ) create table TB_Bar ( Id varchar(255), symbol varchar(20), open float, high float, low float, close float, date date, time time, datetime datetime, volume long, openInterest long ); create table TB_Ema ( Id varchar(255), symbol varchar(20), fastEMA float, slowEMA float, date date, time time, datetime datetime ); delete from TB_Trade; delete from TB_Bar; delete from TB_Ema;