JAVA高级面试进阶训练营视频教程

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刚才一个朋友问到：

 mysql  有类似 mssql 退出执行的方法不？
比如我执行到某个条件，下面就终止执行了。 

 

想起以前写的存储过程，找了好久才找到，就发给他，希望对他有所帮助，贴在这里，留作纪念，也方便自己以后查找。

-- --------------------------------------------------------------------------------

-- Routine DDL
-- --------------------------------------------------------------------------------
DELIMITER $$


CREATE PROCEDURE xxx.proc_reuters_dss_equity_price(OUT p_result BOOLEAN)
BEGIN
-- 错误处理
DECLARE EXIT HANDLER FOR SQLEXCEPTION
BEGIN
TRUNCATE TABLE reuters_interface.reuters_dss_equity_price;
SET p_result = FALSE;
END;
    
    -- 处理数据
REPLACE INTO reuters_dss.equity_price (ric, company_name, currency_code, exchange_code, ticker, trade_date, ask_price, bid_price,
close_price, volume, last_updated_ask_price, last_updated_bid_price, last_updated_close_price, last_updated_date, last_updated_volume, split_factor, vwap_price,
insert_time)
SELECT ric, IF(company_name='', null, company_name), currency_code, exchange_code, ticker, trade_date, IF(ask_price='0.00000', null, ask_price), 
        IF(bid_price='0.00000', null, bid_price), close_price, IF(volume='0', null, volume), IF(last_updated_ask_price='0.00000', null, last_updated_ask_price), 
        IF(last_updated_bid_price='0.00000', null, last_updated_bid_price), 
        IF(last_updated_close_price='0.00000', null, last_updated_close_price),
        last_updated_close_price_date,
        IF(last_updated_volume='0', null, last_updated_volume),
        IF(split_factor='', null, split_factor),
        IF(vwap_price='0.00000', null, vwap_price),
        insert_time
FROM reuters_interface.reuters_dss_equity_price;

COMMIT;
    
TRUNCATE TABLE reuters_interface.reuters_dss_equity_price;
SET p_result = TRUE;

COMMIT;

END