Remove the database column extensions that are created when query databases such as Hive. In other words, when pulling data into R from HIVE, the name of the HIVE database is prefixed to all the column names. For example, if you HIVE table is called FOO, then your columns in R would be of the form FOO.variable1 FOO.variable2 ... etc.
rm_db_name(df, db_name)Dataframe
string The name of the table in the database that you want removed from the column names.
A dataframe is returned with the prefix database name of the column names removed. In the example above the new dataframe would have column names variable1, variable2...etc.
Removes database extensions from column/fields/variable names.