Remove prompts and output from .sql script file.
Still need to tweak the LOAD DATA statement so the whole thing
can run unattended, regardless of the HDFS layout.
Add CREATE DATABASE and USE statements to make sure each script
runs in the right context. Add comments where followup actions needed.
Add comments if one script relies on setup done by a different script.
(Maybe eventually combine those or run them in sequence through a driver
script or Makefile.)