CREATE DEFINER=mysqladmin@% FUNCTION convertWeekToDate(reportYear INT,reportWeek INT) RETURNS varchar(50) CHARSET utf8
BEGIN
DECLARE str_date VARCHAR(50) DEFAULT ”;
SET @dateYear = reportYear;
SET @dateWeek = reportWeek;
SET str_date = CONCAT(SUBSTRING_INDEX(str_to_date(concat(@dateYear, @dateWeek,’SUNDAY’), ‘%X%V%W’),’-‘,-2),”~”,SUBSTRING_INDEX(str_to_date(concat(@dateYear, @dateWeek,’SATURDAY’), ‘%X%V%W’),’-‘,-2));
RETURN str_date;
END
Original: https://www.cnblogs.com/lboke/p/15896902.html
Author: 在bug中写bug
Title: 周转换日期区间，SQL函数
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