Read this SQL tutorial to learn when to use SELECT, JOIN, subselects and UNION to access multiple tables with a single statement. It’s sometimes difficult to know which SQL syntax to use when ...

I need to search about twenty columns for given a string with wildcards. The query essentially looks like this: SELECT * FROM `the_table` WHERE `field1` LIKE 'string%' OR `field2` LIKE 'string ...

This eliminates data replication in the tables. Multiple members of the mailing list can have the same zip code, ... SELECT mailing.fname, mailing ... Create Table Syntax; MySQL 5.6 Reference ...