mORMot Open Source

Dear All,
I'm delphi programmer, and not familiar with the framework. But, i feel, i need it.
My question  is simple.

What class that  it's behavior like TxxConnection?

What class that  it's behavior like TxxQuery?

What class that  it's behavior like TxxTable?

can anyone show me simple code (or link) to execute and sql query to a .s3db file, that return a resultset/TDataset?

can anyone show me simple code (or link) to use trigger?

Thanks.