比较mysql中的两个日期

Question

hotel check in & check out time is

Table data

   check in                   check out                room name
2018-09-17 11:00:00           2018-09-19 11:00:00      room 1
2018-09-18 11:00:00           2018-09-19 11:00:00      room 2

Note : Standard Check in and Check out time : 11:00 AM

if i try for date from 2018-09-17 11:00:00 to 2018-09-18 11:00:00 then output for that date total booked should be 1. room 1 is booked and room 2 should be free.

my query

SELECT * FROM transcationmaster WHERE checkin >= STR_TO_DATE('2018-09-17 11:00:00', '%Y-%m-%d %H:%i:%s') and  checkout  <= STR_TO_DATE('2018-09-18 11:00:00', '%Y-%m-%d %H:%i:%s') 

how to do this in mysql?

Thanks in advance

Answer 1

This is just the overlapping range problem. To find records which overlap with your own date range, try this query:

SELECT *
FROM transactionmaster
WHERE '2018-09-17 11:00:00' < checkout AND '2018-09-18 11:00:00' > checkin;

Demo