Sequences in MySQL help ensure that values aren't repeated, and many applications require database tables to have an incrementing "id" column. The MySQL syntax offers several ways to avoid repeating ...
SELECT * FROM `the_table` WHERE `field1` LIKE 'string%' OR `field2` LIKE 'string%' OR `field3` LIKE 'string%' OR `field4` LIKE 'string%' OR `field5` LIKE 'string%' OR `field6` LIKE 'string%' OR ...
MySQL table primary keys and unique indexes prevent multiple rows with the same index from being added to the table. If you try to insert a duplicate row with a ...