SQL like operations on a table

Is there a way to make SQL like operations (i.e.: Select Distinc, count, group by), using a table as input?
Specicaly, I would like to filter duplicated lines in a table, based on a column, but other features like that would be apreciated.

See GroupBy node with count and other options.

You could have a Look at this Post

If you want to use SQL you might have a look at SQLite.