left join opendatasource('SQLOLEDB','Data Source=192.168.0.3;User ID=username;Password=userpsd').dbname.dbo.detailtable _b on _a.id=_b.fatherid left join ...

The website isn't using parameterized queries, which is a fairly serious security flaw. Most likely, your mother is putting a single quote in a field where the programmer didn't expect it, and because ...

Displaying messages to users of an application is something every developer needs to do. There are many ways to display such messages, some better than others. For example, one approach is to hard ...