一直都没写过Oracle的存储过程,今天突然来了一个需求:计算指定日期的前N个工作日或者后N个工作日日期(去除周末,法定节假日无
一直都没写过Oracle的存储过程,,今天突然来了一个需求:计算指定日期的前N个工作日或者后N个工作日日期(去除周末,法定节假日无法计算),然后研究了一下 Oracle的时间函数和循环方法。具体实现方法如下,也没啥难的,对数据库没研究过,也不知道下面的写法效率怎么样。
或者有没有更好的写法。o(︶︿︶)o 唉!
create or replace procedure proc_CalculationWorkDate
(
plan_date in date,--登录日期
flag in number,--1 往前日期,0往后日期
date_number in number,--天数
out_date out date--计算出的日期
)
is
dayOfWeek number:=0;--星期的数字
dates number:=date_number;--往前或者往后的天数(包含工作日的)初始化给他等于天数
i int:=0;
j int:=0;
begin
if flag=1 then--计算往前日期
while i
if dayOfWeek=1 or dayOfWeek=7 then --周六 周日
dates:=dates+1;
i:=i;
j:=j+1;
else
i:=i+1;
end if;
end loop;
select plan_date+dates into out_date from dual;
--DBMS_OUTPUT.PUT_LINE(dates);
end if;
if flag=0 then --计算往后日期
while i
if dayOfWeek=1 or dayOfWeek=7 then
dates:=dates+1;
i:=i;
j:=j+1;
else
i:=i+1;
end if;
end loop;
select plan_date-dates into out_date from dual;
--DBMS_OUTPUT.PUT_LINE(dates);
end if;
end;
本文永久更新链接地址:

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