Does rdd have schema?
Answer / Kumar Alok Ranjha
By default, RDDs in Apache Spark do not have a schema. However, you can assign a schema to an RDD using methods like `toDF()` or `selectSchema()`. When reading data from structured sources like CSV or JSON, Spark will automatically infer the schema.
| Is This Answer Correct ? | 0 Yes | 0 No |
List few benefits of spark over map reduce?
What are common spark ecosystems?
When should you use spark cache?
What is Directed Acyclic Graph(DAG)?
What is transformation in spark?
How can you manually partition the rdd?
Why do fires spark?
Explain partitions?
How many ways can you create rdd in spark?
Explain countByValue() operation in Apache Spark RDD?
Do I need scala for spark?
How does yarn work with spark?
Apache Hadoop (394)
MapReduce (354)
Apache Hive (345)
Apache Pig (225)
Apache Spark (991)
Apache HBase (164)
Apache Flume (95)
Apache Impala (72)
Apache Cassandra (392)
Apache Mahout (35)
Apache Sqoop (82)
Apache ZooKeeper (65)
Apache Ambari (93)
Apache HCatalog (34)
Apache HDFS Hadoop Distributed File System (214)
Apache Kafka (189)
Apache Avro (26)
Apache Presto (15)
Apache Tajo (26)
Hadoop General (407)