MySQL生成日期维度表的sql语句
作者:ronshi
这篇文章主要介绍了MySQL生成日期维度表的sql语句,通过存储过程生成,其次是通过递归的公用表表达式生成,需要的朋友可以参考下
MySQL生成日期维度表
1、通过存储过程生成
DELIMITER $$ CREATE PROCEDURE dateDim(startDate DATE, endDate DATE) BEGIN DECLARE currentDate DATE; SET currentDate = startDate; WHILE currentDate <= endDate DO INSERT INTO sys_calendar (stats_day) VALUES (currentDate); SET currentDate = DATE_ADD(currentDate, INTERVAL 1 DAY); END WHILE; END $$ DELIMITER ; CALL dateDim('2022-01-01', '2030-12-31');
2、通过递归的公用表表达式生成
WITH RECURSIVE date_series AS ( SELECT '2023-01-01' AS date_value UNION ALL SELECT DATE_ADD(date_value, INTERVAL 1 DAY) FROM date_series WHERE date_value < '2023-12-31' ) INSERT INTO date_dim (date_value) SELECT date_value FROM date_series;
补充:Mysql 快速生成日期时间维度表
Mysql 快速生成日期时间维度表
创建表结构
CREATE TABLE `dim_date` ( `id` int(11) NOT NULL COMMENT '日期键 20000101', `date` date DEFAULT NULL COMMENT '日期 2000-01-01', `year` smallint(6) DEFAULT NULL COMMENT '年 2000', `month` smallint(6) DEFAULT NULL COMMENT '月 01', `day` smallint(6) DEFAULT NULL COMMENT '日 01', `quarter` smallint(6) DEFAULT NULL COMMENT '当年所属季度', `year_of_week` smallint(6) DEFAULT NULL COMMENT '当前周所属年份', `week` smallint(6) DEFAULT NULL COMMENT '当年所属周', `day_of_week` smallint(6) DEFAULT NULL COMMENT '星期几', PRIMARY KEY (`id`) USING BTREE ) ENGINE=InnoDB DEFAULT CHARSET=utf8;
生产数据
SET @d0 = '2000-01-01'; SET @d1 = '2100-12-31'; SET @date = DATE_SUB( @d0, INTERVAL 1 DAY ); INSERT INTO `dim_date`(`date`, `id`, `year`, `month`, `day`, `quarter`, `year_of_week`, `week`, `day_of_week`) SELECT @date := DATE_ADD( @date, INTERVAL 1 DAY ) AS DATE, DATE_FORMAT( @date, '%Y%m%d' ) AS id, YEAR ( @date ) AS Y, MONTH ( @date ) AS m, DAY ( @date ) AS d, QUARTER ( @date ) AS q, DATE_FORMAT( @date, '%x' ) AS yw, WEEK ( @date, 3 ) AS w, WEEKDAY( @date ) + 1 AS wd FROM [某张行数比日期差大的表] WHERE DATE_ADD( @date, INTERVAL 1 DAY ) <= @d1 ORDER BY DATE;
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