Simple MySQL

This class can be used to execute MySQL queries defined programmatically.

It can compose and execute MySQL queries to perform the four basic SQL operations:

- Select or count the rows of a table given the columns to be retrieved, the where clause and optionally a limited range of result rows to retrieve
- Insert a row in a table given the field values
- Delete rows from a table given the where clause
- Update rows of a table given the where clause and the column rows to update