mysql計算工作日

mysql計算工作日  

Sql代碼  
DELIMITER $$  
  
drop procedure if exists `pGetWorkDays`$$  
  
create procedure pGetWorkDays(s datetime,e datetime)  
begin  
select floor(days/7)*5+days%7  
    -case when 6 between wd and wd+days%7-1 then 1 else 0 end  
    -case when 7 between wd and wd+days%7-1 then 1 else 0 end  
from  
(select datediff(e,s)+1 as days,weekday(s)+1 as wd) as a;  
end$$  
DELIMITER ;  
call pGetWorkDays('2005-01-01','2005-12-31');