#27 StatementImpl::Columns() should never throw

[Michael Hieke]

StatementImpl::Columns() should simply return 0 if mOutRow isn't assigned. There is nothing wrong with querying the number of rows from any prepared statement.

[Michael Hieke]

The same applies to StatementImpl::Parameters(). There is also some inconsistency in the getters, some test whether the statement has been prepared, some don't.

[Olivier Mascia]

Agreed.