ALTER TABLE `pobocka`
    ADD COLUMN `kratky_nazov` VARCHAR(50) NOT NULL AFTER `nazov`;
UPDATE `pobocka` SET `kratky_nazov`='LM' WHERE  `id`=1;
UPDATE `pobocka` SET `kratky_nazov`='ZA' WHERE  `id`=2;
UPDATE `pobocka` SET `kratky_nazov`='PB' WHERE  `id`=3;
UPDATE `pobocka` SET `kratky_nazov`='BA' WHERE  `id`=4;
UPDATE `pobocka` SET `kratky_nazov`='ZM' WHERE  `id`=5;
