复制内容到剪贴板
代码:USE test;
DELIMITER //
drop
procedure
if
exists updata
//
CREATE PROCEDURE updata ()
BEGIN
DECLARE v_risePrice decimal(20,8); #涨停价
DECLARE v_fallPrice decimal(20,8); #跌停价
DECLARE v_openPrice decimal(20,8); #开盘价
DECLARE v_contractid bigint;#合约ID
DECLARE v_priceTick decimal(20,8); #最小变动价
DECLARE v_price decimal(20,8);
DECLARE done INT;
Declare updcur CURSOR FOR
SELECT
a.RisePrice,
a.fallprice,
a.openprice,
a.contractid,
b.pricetick,
b.price
FROM qoutdata AS a,contractinfo as b where a.contractid=b.contractid;
#DECLARE CONTINUE HANDLER FOR NOT FOUND SET done=1;
#SET done=0;
Open updcur;
FETCH updcur INTO v_risePrice,v_fallPrice,v_openPrice,v_contractid,v_priceTick,v_price;
WHILE (v_risePrice is not null) DO
IF v_openPrice>=0 THEN
IF (v_risePrice MOD v_priceTick)<>0 THEN
SET v_risePrice=v_risePrice-(v_risePrice MOD v_priceTick);
UPDATE qoutdata SET RisePrice=v_risePrice WHERE contractid=v_contractid;
END IF;
IF (v_fallPrice MOD v_priceTick)<>0 THEN
SET v_fallPrice=v_fallPrice+v_priceTick-(v_fallPrice MOD v_priceTick);
UPDATE qoutdata SET FallPrice=v_fallPrice WHERE contractid=v_contractid;
END IF;
END IF;
FETCH updcur INTO v_risePrice,v_fallPrice,v_openPrice,v_contractid,v_priceTick,v_price;
END WHILE;
CLOSE updcur;
END//
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