This function will delete any rows that fit the $where clause, and returns the number of rows deleted from the table.
This function will only delete rows as long as they are within the $limit. If no $limit is defined, then all rows that match will be deleted.
Important- To achieve the same results as this function before txtSQL 2.2.2 RC2, use the execute() function
Note- For more information on defining a where clause, see the how to create a where clause section, or for defining a limit clause, see
how to create a limit clause section
Note- If no $db is specified and no database is already selected, txtSQL will issue an error
