MYSQL 生成日期维度表

在报表统计中经常要用到日期维度进行汇总，所以需要提前生成通用的日期维度表。

1、创建建维度表

DROP TABLE IF EXISTS tb_rpt_dim_day;
CREATE TABLE tb_rpt_dim_day (
day_id bigint(0) NOT NULL COMMENT ‘主健’,
day_short date NOT NULL COMMENT ‘日期’,
year int(0) NOT NULL COMMENT ‘所属年份’,
week int(0) NOT NULL COMMENT ‘星期几’,
week_cn varchar(10) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL COMMENT ‘星期几(中文)’,
week_en varchar(10) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL COMMENT ‘星期几(英文)’,
month int(0) NOT NULL COMMENT ‘所属月份’,
month_cn varchar(10) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL COMMENT ‘所属月份(中文)’,
month_en varchar(10) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL COMMENT ‘所属月份(英文)’,
quarter int(0) NOT NULL COMMENT ‘所属季度’,
quarter_cn varchar(10) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL COMMENT ‘所属季度(中文)’,
week_of_year int(0) NOT NULL COMMENT ‘本年第几周’,
day_of_month int(0) NOT NULL COMMENT ‘本月第几天’,
day_of_year int(0) NOT NULL COMMENT ‘本年第几天’,
PRIMARY KEY (day_id) USING BTREE
) ENGINE = InnoDB CHARACTER SET = utf8mb4 COLLATE = utf8mb4_general_ci ROW_FORMAT = Dynamic;

SET FOREIGN_KEY_CHECKS = 1;

2、生成维度数据函数

CREATE DEFINER=root@% PROCEDURE f_dim_day( IN start_date VARCHAR ( 20 ), IN date_count INT )
BEGIN
DECLARE
i INT;

SET i = 0;
DELETE
FROMtb_rpt_dim_day;
WHILEi < date_count DOINSERT INTO tb_rpt_dim_day SELECT REPLACE( start_date, '-', '' ) AS day_id,-- 日期主健DATE_FORMAT( STR_TO_DATE( start_date, '%Y-%m-%d %H:%i:%s' ), '%Y-%m-%d' ) AS day_short,DATE_FORMAT( STR_TO_DATE( start_date, '%Y-%m-%d %H:%i:%s' ), '%Y' ) AS `year`,DATE_FORMAT( STR_TO_DATE( start_date, '%Y-%m-%d %H:%i:%s' ), '%w' ) AS `week`,CASEDATE_FORMAT( STR_TO_DATE( start_date, '%Y-%m-%d %H:%i:%s' ), '%w' ) WHEN 1 THEN'星期一' WHEN 2 THEN'星期二' WHEN 3 THEN'星期三' WHEN 4 THEN'星期四' WHEN 5 THEN'星期五' WHEN 6 THEN'星期六' WHEN 0 THEN'星期天' END AS `week_cn`,DATE_FORMAT( STR_TO_DATE( start_date, '%Y-%m-%d %H:%i:%s' ), '%W' ) AS `week_en`,DATE_FORMAT( STR_TO_DATE( start_date, '%Y-%m-%d %H:%i:%s' ), '%c' ) AS `month`,CASEDATE_FORMAT( STR_TO_DATE( start_date, '%Y-%m-%d %H:%i:%s' ), '%c' ) WHEN 1 THEN'一月' WHEN 2 THEN'二月' WHEN 3 THEN'三月' WHEN 4 THEN'四月' WHEN 5 THEN'五月' WHEN 6 THEN'六月' WHEN 7 THEN'七月' WHEN 8 THEN'八月' WHEN 9 THEN'九月' WHEN 10 THEN'十月' WHEN 11 THEN'十一月' WHEN 12 THEN'十二月' END AS `month_cn`,DATE_FORMAT( STR_TO_DATE( start_date, '%Y-%m-%d %H:%i:%s' ), '%b' ) AS `month_en`,QUARTER ( STR_TO_DATE( start_date, '%Y-%m-%d %H:%i:%s' ) ) AS `quarter`,CASEQUARTER ( STR_TO_DATE( start_date, '%Y-%m-%d %H:%i:%s' ) ) WHEN 1 THEN'一季度' WHEN 2 THEN'二季度' WHEN 3 THEN'三季度' WHEN 4 THEN'四季度' END AS quarter_cn,DATE_FORMAT( STR_TO_DATE( start_date, '%Y-%m-%d %H:%i:%s' ), '%u' ) AS `week_of_year`,DATE_FORMAT( STR_TO_DATE( start_date, '%Y-%m-%d %H:%i:%s' ), '%e' ) AS `day_of_month`,DAYOFYEAR( STR_TO_DATE( start_date, '%Y-%m-%d %H:%i:%s' ) ) AS `day_of_year` FROMDUAL;SET i = i + 1;SET start_date = DATE_FORMAT( date_add( STR_TO_DATE( start_date, '%Y-%m-%d %H:%i:%s' ), INTERVAL 1 DAY ), '%Y-%m-%d' );END WHILE;

END

调用函数如下：call f_dim_day(‘2021-01-01’,365)