which one of the following commands is used to see the structure of the Dataframe

0 votes
which one of the following commands is used to see the structure of the Dataframe?

a)scala> dfs.Schema()

b)scala> printSchema()

c)scala> dfs.printSchema()

d)Run time error
Nov 25, 2020 in Apache Spark by ritu
 • 960 points • 2,431 views

1 answer to this question.

0 votes

Hi @Ritu

If you want to see the Structure (Schema) of the DataFrame, then use the following command.

scala> dfs.printSchema()
answered Nov 25, 2020 by Gitika
 • 65,770 points

Related Questions In Apache Spark

0 votes
1 answer

Which one of the following commands is used to start python-spark?

Hi@ritu, To start your python spark shell, you ...READ MORE

answered Nov 26, 2020 in Apache Spark by MD
 • 95,460 points • 1,432 views
+1 vote
0 answers

How to combine a nested json file, which is being partitioned on the basis of source tags, and has varying internal structure, into a single json file; ( differently sourced Tag and varying structure)

Source tags are different: {  x : [         { ...READ MORE

Oct 11, 2019 in Apache Spark by anonymous
 • 160 points • 1,113 views
0 votes
1 answer

In AWS, if user wants to run spark, then on top of which one of the following can the user do it?

Hi@ritu, AWS has lots of services. For spark ...READ MORE

answered Nov 26, 2020 in Apache Spark by MD
 • 95,460 points • 1,432 views
0 votes
1 answer

3)You have a dataset of in-game purcahses from mobile game users and you want to group these users for upsell. which one of the spark machine learning algorithms could you use ?

Hi@ritu, I think the problem can be solved ...READ MORE

answered Nov 23, 2020 in Apache Spark by MD
 • 95,460 points • 3,748 views
0 votes
1 answer

4)Spark streaming converts streaming data into DStreams. which one of the given statements about DStreams is True?

Hi@ritu, Spark DStream (Discretized Stream) is the basic ...READ MORE

answered Nov 23, 2020 in Apache Spark by MD
 • 95,460 points • 2,785 views
0 votes
1 answer

The number of stages in a job is equal to the number of RDDs in DAG. however, under one of the cgiven conditions, the scheduler can truncate the lineage. identify it.

Hi@Edureka, Spark's internal scheduler may truncate the lineage of the RDD graph ...READ MORE

answered Nov 26, 2020 in Apache Spark by MD
 • 95,460 points • 4,045 views
0 votes
0 answers

A Dataframe can be created from an existing RDD. You would create the Dataframe from the existing RDD by inferring schema using case classes in which one of the given classes?

A Dataframe can be created from an ...READ MORE

Nov 25, 2020 in Apache Spark by Edureka
 • 200 points
closed Nov 26, 2020 by MD • 2,267 views
0 votes
0 answers

The number of stages in a job is equal to the number of RDDs in DAG. however, under one of the cgiven conditions, the scheduler can truncate the lineage. identify it.

14)The number of stages in a job ...READ MORE

Nov 25, 2020 in Apache Spark by Edureka
 • 200 points
closed Nov 25, 2020 by MD • 5,177 views
0 votes
1 answer

9)In scala, which one of the following will give the top 10 resolutions to the console, assuming that sfpdDF is the DataFrame registered as a table - sfpd?

Hey, @Ritu, According to the question, the answer ...READ MORE

answered Nov 23, 2020 in Apache Spark by Gitika
 • 65,770 points • 3,007 views
0 votes
1 answer

1)Given sfpd RDD, to create a pair RDD consisting of tuples of the form (Category. 1) in scala ,which of the following is used?

Hi, @Ritu, When creating a pair RDD from ...READ MORE

answered Nov 23, 2020 in Apache Spark by Gitika
 • 65,770 points • 6,338 views
webinar REGISTER FOR FREE WEBINAR X
REGISTER NOW
webinar_success Thank you for registering Join Edureka Meetup community for 100+ Free Webinars each month JOIN MEETUP GROUP
"PMP®","PMI®", "PMI-ACP®" and "PMBOK®" are registered marks of the Project Management Institute, Inc. MongoDB®, Mongo and the leaf logo are the registered trademarks of MongoDB, Inc.