Mysql Between in Between

Question

how to select data between 2 dates in between 2 dates? for example :

start_date - end_date -- title

2014-01-28 2014-02-03 test

2014-02-01 2014-02-15 ests

2014-02-28 2014-03-03 sets

2014-03-01 2014-03-10 sste

the problem is, i want to select data between 2014-02-02 and 2014-02-28 with first three of them selected because the first three data is included on 2nd month.

i tried this, but not works

SELECT title FROM my_tables WHERE start_date BETWEEN 2014-02-02 AND 2014-02-28

how it works?

Answer 1

Two periods overlap when one begins before the other ends, and the other ends after the first begins. Here is the correct logic:

SELECT title
FROM my_tables
WHERE start_date <= '2014-02-28' and
      end_date >= '2014-02-02';

Note that date constants need to be in single quotes.

Here is a SQL Fiddle showing it working.

Answer 2

Add single quote to date constant

SELECT title FROM my_tables WHERE start_date BETWEEN '2014-02-02' AND '2014-02-28'

Answer 3

A date range overlaps with another when either the start or the end is within that other range:

given range:    |----|
range 1     |----|           overlaps with given range, because end_date is in that range
range 2            |----|    overlaps with given range, because start_date is in that range
range 3  |----|              does not overlap with given range, because both start and end date are not in that range

SELECT title FROM my_tables 
WHERE (start_date BETWEEN '2014-02-02' AND '2014-02-28')
OR (end_date BETWEEN '2014-02-02' AND '2014-02-28');