listColumns: Returns a list of columns for the given table/view in the specified database
Description
Returns a list of columns for the given table/view in the specified database.
Usage
listColumns(tableName, databaseName = NULL)
Arguments
tableName
the qualified or unqualified name that designates a table/view. If no database
identifier is provided, it refers to a table/view in the current database.
If databaseName parameter is specified, this must be an unqualified name.
databaseName
(optional) name of the database
Value
a SparkDataFrame of the list of column descriptions.