博客
关于我
oracle创建日历表,并写入数据
阅读量:395 次
发布时间:2019-03-05

本文共 1450 字,大约阅读时间需要 4 分钟。

创建日历表,并写入数据

-- Create tablecreate table tdate(  DT          DATE not null,  YEAR        number(4),  MONTH      VARCHAR2(4),  DAY         VARCHAR2(4),  WEEK         VARCHAR2(10),  WEEKNUM         VARCHAR2(4),  XQ   number(2),  QR    number(2),  bourse_week  VARCHAR2(4));insert into tdate t (  t.dt,                        t.year,                        t.month,                        t.day,                        t.week,                        t.weeknum,                        t.xq,                        t.qr,                        t.bourse_week)select trunc(everyDay) as dt,   to_char(everyday,'yyyy') as yr,   to_char(everyday,'mm') as mm,   to_char(everyday,'dd') as dd,   to_char(everyday,'dy') as dayofweek,   /*ORACLE自定义的标准周*/   to_char(everyday,'WW') as weeknum,   /*该月的第几周*/   /*lpad(to_char(everyday,'w'),6) as monthOfWeek,*/   to_char(everyday,'d') XQ,   to_char(everyday,'Q') as qr,   /*ISO的标准周,通常使用这个*/   to_char(everyday,'IW') as bourse_week   from(select to_date('20170101','yyyymmdd') + level - 1 as everyDay from dual  connect by level <=   (last_day(to_date('20220101','yyyymmdd')) - to_date('20170101','yyyymmdd') +1));  SELECT * FROM (with x as  (select add_months(trunc(sysdate, 'y'), -12) + level - 1 tdate      from dual    connect by level <=              add_months(trunc(sysdate, 'y'), 12) - trunc(sysdate, 'y')) select tdate, to_char(tdate, 'day'),rownum rn from x where to_char(tdate, 'day') ='星期五'   ) where    rn=20

转载地址:http://xrdzz.baihongyu.com/

你可能感兴趣的文章
logstash mysql 准实时同步到 elasticsearch
查看>>
Luogu2973:[USACO10HOL]赶小猪
查看>>
mabatis 中出现&lt; 以及&gt; 代表什么意思?
查看>>
Mac book pro打开docker出现The data couldn’t be read because it is missing
查看>>
MAC M1大数据0-1成神篇-25 hadoop高可用搭建
查看>>
mac mysql 进程_Mac平台下启动MySQL到完全终止MySQL----终端八步走
查看>>
Mac OS 12.0.1 如何安装柯美287打印机驱动,刷卡打印
查看>>
MangoDB4.0版本的安装与配置
查看>>
Manjaro 24.1 “Xahea” 发布!具有 KDE Plasma 6.1.5、GNOME 46 和最新的内核增强功能
查看>>
mapping文件目录生成修改
查看>>
MapReduce程序依赖的jar包
查看>>
mariadb multi-source replication(mariadb多主复制)
查看>>
MariaDB的简单使用
查看>>
MaterialForm对tab页进行隐藏
查看>>
Member var and Static var.
查看>>
memcached高速缓存学习笔记001---memcached介绍和安装以及基本使用
查看>>
memcached高速缓存学习笔记003---利用JAVA程序操作memcached crud操作
查看>>
Memcached:Node.js 高性能缓存解决方案
查看>>
memcache、redis原理对比
查看>>
memset初始化高维数组为-1/0
查看>>