CRUD

Create (in the world of http => POST)
	Command: INSERT INTO `table_name` (`column1`, `column2`, `column3`,...) VALUES ("value1", value2, value3,...)
	Create new row in the table_name, entered value1 in column1, value2 in column2, etc.

Retrieve (in the world of http => GET )
	Command: SELECT * FROM `tablename`
	General Usage: Retrieve all rows from tablename
	Command: SELECT `id` FROM `tablename`
	Retrieve all rows from tablename but just the id column
	Command: SELECT * FROM `tablename` WHERE `id` = 1
	Retrieve all rows from tablename where the id column has the value 1
	Command: SELECT * FROM `tablename` WHERE `id` = 1 OR `category_id` = 1
	AND and OR with WHERE to make it specific
	AND means "both" things be true
	OR means "either" thing must be true
	
Update (in the world of http => PUT (Browsers don't do this, so we POST) )
	UPDATE `tablename` SET `column1`="value1" WHERE `id`=1
	Update tablename, column1 to the new value1, in a row where the column `id` has value 1

Delete (in the world of http => DELETE (Browsers don't do this, so we POST) )
	DELETE FROM `tablename` WHERE `id` = 1
	Delete row from tablename where column id has value 1