检查mysql持续时间的最佳方法

Question

in my mysql table, there are column startYear,startMonth,endYear,endMonth which are all integer (int). there I stored the starting year and month, and ending year and month for something.. for example I want to store the duration of my car instalment, so startYear would have 2012, startMonth would have 8, endYear would have 2019, endMonth would have 7

ok so since now the actual current month is 9 (september) and year 2013, what is the best way/query for me to check whether the current month and year is within the startYear,startMonth and endYear,endMonth?

Answer 1

BETWEEN将检查值是否大于或等于第一个数字，并且小于或等于第二个数字。

IF (MONTH(CURDATE()) BETWEEN startMonth and endMonth) AND (YEAR(CURDATE()) BETWEEN startYear and endYear))

Answer 2

Try this:

CURDATE() BETWEEN CONCAT_WS('-', startYear, startMonth, '01')
                  AND CONCAT_WS('-', endYear, endMonth, '31');