Created
January 29, 2022 04:10
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Create a Calender in MySQL
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DROP TABLE IF EXISTS dates; | |
CREATE TABLE dates ( | |
idDate INTEGER PRIMARY KEY, -- year10000+month100+day | |
fulldate DATE NOT NULL, | |
year INTEGER NOT NULL, | |
month INTEGER NOT NULL, -- 1 to 12 | |
day INTEGER NOT NULL, -- 1 to 31 | |
quarter INTEGER NOT NULL, -- 1 to 4 | |
week INTEGER NOT NULL, -- 1 to 52/53 | |
dayOfWeek INTEGER NOT NULL, -- 1 to 7 | |
weekend INTEGER NOT NULL, | |
UNIQUE td_ymd_idx (year,month,day), | |
UNIQUE td_dbdate_idx (fulldate) | |
) Engine=innoDB; | |
DROP PROCEDURE IF EXISTS fill_date_dimension; | |
DELIMITER // | |
CREATE PROCEDURE fill_date_dimension(IN startdate DATE,IN stopdate DATE) | |
BEGIN | |
DECLARE currentdate DATE; | |
SET currentdate = startdate; | |
WHILE currentdate < stopdate DO | |
INSERT INTO dates VALUES ( | |
YEAR(currentdate)*10000+MONTH(currentdate)*100 + DAY(currentdate), | |
currentdate, | |
YEAR(currentdate), | |
MONTH(currentdate), | |
DAY(currentdate), | |
QUARTER(currentdate), | |
WEEKOFYEAR(currentdate), | |
CASE DAYOFWEEK(currentdate)-1 WHEN 0 THEN 7 ELSE DAYOFWEEK(currentdate)-1 END , | |
CASE DAYOFWEEK(currentdate)-1 WHEN 0 THEN 1 WHEN 6 then 1 ELSE 0 END); | |
SET currentdate = ADDDATE(currentdate,INTERVAL 1 DAY); | |
END WHILE; | |
END | |
// | |
DELIMITER ; | |
TRUNCATE TABLE dates; | |
CALL fill_date_dimension('2014-01-01','2101-01-01'); | |
OPTIMIZE TABLE dates; |
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