MySQL NOT IN from another column in the same table

Question

I want to run a mysql query to select all rows from a table films where the value of the title column does not exist anywhere in all the values of anot

Answer 1

CREATE TABLE IF NOT EXISTS `reservation_tables` (
  `res_table_id` int(10) NOT NULL AUTO_INCREMENT,
  `res_table_name` int(10) NOT NULL,
  `date_time` varchar(20) NOT NULL,
  `partyhall_id` int(10) NOT NULL,
  `flag` enum('0','1') NOT NULL DEFAULT '0',
  PRIMARY KEY (`res_table_id`)
) ENGINE=InnoDB  DEFAULT CHARSET=latin1 AUTO_INCREMENT=9 ;


INSERT INTO `reservation_tables` (`res_table_id`, `res_table_name`, `date_time`, `partyhall_id`, `flag`) VALUES
(1, 1, '2014-08-17 12:00 am', 7, '1'),
(2, 2, '2014-08-17 12:00 am', 7, '1'),
(3, 3, '2014-08-18 12:00 am', 8, '1'),
(4, 4, '2014-08-18 12:00 am', 8, '1'),
(5, 1, '2014-08-25 12:00 am', 12, '1'),
(6, 2, '2014-08-25 12:00 am', 12, '1'),
(7, 3, '2014-08-20 12:00 am', 23, '1'),
(8, 4, '2014-08-20 12:00 am', 23, '1');

Ι had to select available table name for matching date_time

Example select available table_name where date_time = 2014-08-18 12:00 am.

solution query is: im sure this works well

SELECT distinct res_table_name FROM reservation_tables WHERE `res_table_name` NOT IN   
(SELECT `res_table_name` FROM reservation_tables where `date_time` = '2014-08-17 12:00 am')