How to delete Specific row http://sqlfiddle.com/#!9/df6245
How to delete all rows Where brand not equal to 107
for example in above fiddle GRPCD 44111 have 107 so it should not delete both rows which have GRPCD 44111 but it will delete both two rows of GRPCD 33111 because there is no brand 107 value.
Please help
Edit
This query is working perfect someone can give me better query.
DELETE FROM `products_cross` WHERE GRPCD NOT IN (SELECT GRPCD FROM products_cross WHERE brand=107)
You need a subquery like this for the products_cross , so that Mysql has a temporary table to select the wanted ids


CREATE TABLE IF NOT EXISTS `products_cross` (
  `id` int(6) unsigned NOT NULL,
  `GRPCD` int(10) unsigned NOT NULL,
  `brand` int(5) NOT NULL,
  PRIMARY KEY (`id`)
) DEFAULT CHARSET=utf8;
INSERT INTO `products_cross` (`id`, `GRPCD`, `brand`) VALUES
  ('1', '33111', '107'),
  ('2', '33111', '103'),
  ('3', '44111', '105'),
  ('4', '44111', '101');




SELECT * FROM products_cross


id | GRPCD | brand
-: | ----: | ----:
 1 | 33111 |   107
 2 | 33111 |   103
 3 | 44111 |   105
 4 | 44111 |   101




DELETE FROM `products_cross` 
WHERE GRPCD NOT IN (SELECT GRPCD FROM (SELECT * FROM products_cross ) pc WHERE brand=107) 




SELECT * FROM products_cross


id | GRPCD | brand
-: | ----: | ----:
 1 | 33111 |   107
 2 | 33111 |   103


db&lt;&gt;fiddle here