How to create and manage a view in HCatalog?
Answer / Maneesh
To create a view in HCatalog, you can use the CREATE VIEW statement followed by the name of the new view and a SELECT query that defines its contents. For example: CREATE VIEW view_name AS SELECT * FROM table_name; To manage views, you can alter or drop them using ALTER VIEW and DROP VIEW statements respectively.
| Is This Answer Correct ? | 0 Yes | 0 No |
Which command do we use to insert data in HCatalog?
Explain HCatInputFormat and HCatOutputFormat?
Why HCatalog?
Explain Creating an Index?
How to invoke Command Line Interface?
Explain HCatWriter?
Who is intended audience to learn HCatalog?
Explain HCatLoader and HCatStorer APIs?
Explain HCatReader?
Name Applications and Use Cases of HCatalog?
Which command is used to list all the tables in a database or list all the columns in a table?
Explain the term HCatalog?
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)