儲存過程中使用多游標例項 mysql

2021-09-22 17:57:28 字數 1802 閱讀 3941

drop procedure if exists get_qrcode_daily_statistic;


delimiter ;;


create procedure get_qrcode_daily_statistic()


begin


#宣告下面要用到的變數


declare allet_union_out int;


declare ribbon_union_out int;


declare union_out_amount decimal;


declare allet_union_stay int;


declare ribbon_union_stay int;


declare union_stay_amount decimal;


declare allet_company_out int;


declare ribbon_company_out int;


declare company_out_amount decimal;


#建立多個游標


declare unionout cursor for select sum(allet_card) as allet_union_out,sum(ribbon_card) as ribbon_union_out,sum(allet_card_amount) + sum(ribbon_card_amount) as union_out_amount from lh_bill_info where state = 2 and hand_out = 1 and `status` = 1;


declare unionstay cursor for select sum(allet_card) as allet_union_stay,sum(ribbon_card) as ribbon_union_stay,sum(allet_card_amount) + sum(ribbon_card_amount) as union_stay_amount from lh_bill_info where state = 2 and hand_out = 0 and `status` = 1;


#開啟游標


open unionout;


#把游標中資料放入變數中


fetch next from unionout into allet_union_out,ribbon_union_out,union_out_amount;


#關閉當前你游標


close unionout;


#開啟新游標


open unionstay;


#把游標中資料放入變數中


fetch next from unionstay into allet_union_stay,ribbon_union_stay,union_stay_amount;


#關閉當前你游標


close unionstay;


#可使用變數計算變數值


set allet_company_out = allet_union_out + allet_union_stay;


set ribbon_company_out = ribbon_union_out + ribbon_union_stay;


#顯示賦值後的變數值


select allet_union_out,ribbon_union_out,allet_union_stay,ribbon_union_stay,allet_company_out,ribbon_company_out;


end;


;;delimiter ;


call get_qrcode_daily_statistic();

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