This class is a MySQL database access wrapper that can execute common SQL queries. It can: - Establish connections to a MySQL host and access a given database - Execute INSERT or UPDATE SQL queries to a given table and a list of fields - Get the last inserted identifier value - Execute arbitrary SQL queries - Retrieve the total number rows and result set data - Build an SQL search condition on a specific field using the LIKE operator - Format dates on the ISO format used by MySQL YYYY-MM-DD hh:ii:ss