This function returns how many rows in the database were affected by
our last SQL query.
Note
This function is availible only if you're using mSQL version 2
or later. (That means: if the includes and library of version 2 of mSQL
were availible when the module was compiled).
This function is not part of the standard interface, so it is not
availible through the Sql.Sql interface, but only through Sql.msql and
Msql.msql programs