To intuitively understand join operations, we first build a simple example database that stores grocery items and their corresponding categories. The category information is stored in the categories ...

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 ...