如何在mysql中創建用於選擇記錄的過程？

Question

如何在mysql中編寫程序以從IN和OUT參數中選擇特定表中的記錄？

Answer 1

delimiter // 

create procedure sample (in id int, out MyCount int) 
begin 
    select count(*) into MyCount 
     from YourTable 
     where YourKey = id; 
end//