MYSQL syntax error - why is this happening? - mysql

Question

I use mysql in my php scripts for more than 6 years but i never encountered error like this.
When i execute this SQL command:
SELECT `discount_items`.* FROM `discount_items` WHERE (position=1) AND (active=1) AND (end<=1344007212) AND (show=1) LIMIT 1
it throws me this error
#1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'show=1) LIMIT 1' at line 1
The table structure is:
CREATE TABLE IF NOT EXISTS `discount_items` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`name` text CHARACTER SET utf8 COLLATE utf8_czech_ci NOT NULL,
`image` text CHARACTER SET utf8 COLLATE utf8_czech_ci NOT NULL,
`discount` float NOT NULL,
`price1` float NOT NULL,
`price2` float NOT NULL,
`bought` int(11) NOT NULL,
`target` int(11) NOT NULL,
`desc` text CHARACTER SET utf8 COLLATE utf8_czech_ci NOT NULL,
`link` text CHARACTER SET utf8 COLLATE utf8_czech_ci NOT NULL,
`active` tinyint(1) NOT NULL,
`start` int(11) NOT NULL,
`end` int(11) NOT NULL,
`position` int(11) NOT NULL DEFAULT '1',
`show` int(11) NOT NULL DEFAULT '1',
PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1;
I don't get whats wrong. Obviously the 'show' field cause the problem but i already tried everything.. (there must be something wrong with show field because:
SELECT `discount_items`.* FROM `discount_items` WHERE (show=1) AND (active=1) AND (end<=1344007212) AND (position=1) LIMIT 1
throws
#1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'show=1) AND (active=1) AND (end<=1344007212) AND (position=1) LIMIT 1' at line 1
So the problem moves with the show field.
I am sorry if this is common problem but i googled and found nothing. This error is too global and doesn't explain anything to me.
Thanks for any help and tips!

Answer 1

show is a MySQL reserved word. If you are going to use it to reference a field name, you must use backticks around it like this:
SELECT `discount_items`.*
FROM `discount_items`
WHERE
(position=1)
AND (active=1)
AND (end<=1344007212)
AND (`show`=1) /* backticks added here */
LIMIT 1

Answer 2

show is a reserved word. Either change it or place it in ticks
SELECT `discount_items`.* FROM `discount_items` WHERE (position=1) AND (active=1) AND (end<=1344007212) AND (`show`=1) LIMIT 1

Answer 3

show is a MySQL reserved word. Enclose it in backticks to make it work.