mysql儲存過程以及游標的使用

create procedure sp1()

begin
declare s int default 0;
declare f_total int;
declare f_playerid varchar(30);
declare cur cursor for select count(*) as total ,playerid from ff_soccer_lottery_prize_record where ff_soccer_lottery_prize_record.lottery_date < '2016-06-10 15:07:22' group by playerid  order by total desc;
declare continue handler for sqlstate '02000' set s=1;  
open cur;
fetch cur into f_total, f_playerid;
while s <> 1 do 
update ff_soccer_lottery set ff_soccer_lottery.lottery_used_count = ff_soccer_lottery.lottery_used_count - f_total where ff_soccer_lottery.playerid = f_playerid;
fetch cur into f_total, f_playerid;
end while;
close cur;
end;
call sp1;
drop procedure sp1;

#設定乙個終止標記

declare continue handler for sqlstate '02000' set s=1

#開啟游標就不說了

fetch cur into f_total, f_playerid  #這裡注意，變數的使用必須在上面用declare定義型別

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