zoukankan      html  css  js  c++  java
  • 定时建表

    每天凌晨一点建一个第二天的表
    DELIMITER //
    CREATE PROCEDURE test.create_tab_every_day()
    BEGIN
    DECLARE `@i` VARCHAR(15);
    DECLARE `@sqlstr` VARCHAR(2560);
    SET `@i` = DATE_FORMAT(DATE_ADD(NOW(),INTERVAL 1 DAY),'%Y_%m_%d');
    SET @sqlstr = CONCAT(
    "CREATE TABLE day_tab_",
    `@i`,
    "(
      `prop` VARCHAR(40)
    );"
    );
    PREPARE stmt FROM @sqlstr;
    EXECUTE stmt;
    END;

    CALL test.create_tab_every_day();
    /*****DROP PROCEDURE test.create_tab_every_day;*****/
    /*****drop table test.day_tab_2015_09_11;*****/

    DELIMITER $$
    CREATE EVENT event_create_tab_days
    ON SCHEDULE EVERY 1 DAY
    STARTS '2015-09-10 01:00:00'
    ON  COMPLETION  PRESERVE
    ENABLE
    DO
    BEGIN
    CALL test.create_tab_every_day();
    END
    $$
    DELIMITER ;


    每月的11号建一张下个月的表

    DELIMITER //
    CREATE PROCEDURE test.create_tab_every_mon()
    BEGIN
    DECLARE `@i` VARCHAR(15);
    DECLARE `@sqlstr` VARCHAR(2560);
    SET `@i` = DATE_FORMAT(DATE_ADD(NOW(),INTERVAL 1 MONTH),'%Y_%m');
    SET @sqlstr = CONCAT(
    "CREATE TABLE mon_tab_",
    `@i`,
    "(
      `prop` VARCHAR(40)
    );"
    );
    PREPARE stmt FROM @sqlstr;
    EXECUTE stmt;
    END;


    CALL test.create_tab_every_mon();
    /*****DROP PROCEDURE test.create_tab_every_mon;*****/
    /*****DROP TABLE test.mon_tab_2015_10*****/


    DELIMITER $$
    CREATE EVENT event_create_tab_mons
    ON SCHEDULE EVERY 1 MONTH
    STARTS '2015-09-11 01:00:00'
    ON  COMPLETION  PRESERVE
    ENABLE
    DO
    BEGIN
    CALL test.create_tab_every_mon();
    END
    $$
    DELIMITER ;

    来自 “ ITPUB博客 ” ,链接:http://blog.itpub.net/29320885/viewspace-1796496/,如需转载,请注明出处,否则将追究法律责任。

  • 相关阅读:
    bzoj 5092: [Lydsy1711月赛]分割序列
    bzoj1173: [Balkan2007]Point
    bzoj1536: [POI2005]Akc- Special Forces Manoeuvres
    bzoj2178: 圆的面积并
    bzoj1043 下落的圆盘
    bzoj2674 Attack
    bzoj1201: [HNOI2005]数三角形
    bzoj3135: [Baltic2013]pipesd
    bzoj1760 [Baltic2009]Triangulation
    bzoj3136
  • 原文地址:https://www.cnblogs.com/xuchenCN/p/14025195.html
Copyright © 2011-2022 走看看