[datatable-help] converting sql to data table with subqueriesand exists clauses

[Matthew Dowle]

Dhruv,

But user 4 voted for movie 4 twice (first 1*, then 3*). Which is something
I already asked about (but you haven't addressed). Further, you've
described a new column. That implies a new value for every row. There are
7 rows but you've only stated what 2 of those 7 values should be.

Please read through this in full :

    http://www.catb.org/~esr/faqs/smart-questions.html

Matthew