Other

Where is hive database located?

by Author

Where is hive database located?

To list out the databases in Hive warehouse, enter the command ‘show databases’. The database creates in a default location of the Hive warehouse. In Cloudera, Hive database store in a /user/hive/warehouse.

Which of the following is the default location of the databases created in hive?

hive/warehouse
The default path is /apps/hive/warehouse.

What can be altered using alter database command in hive?

Hadoop Hive alter database is a statement used to change the properties of a databases in Hive. You can add or remove the database comments, properties etc by using alter database statements.

How do I access the hive database?

Paste the jar files of the driver in the appropriate folder.

  1. Create a new folder called Big Data.
  2. Right-click on the Big Data folder and select New > Data source > JDBC.
  3. Name the data source hive_ds.
  4. Select Hive 2.0.
  5. Fill in the login and password fields, as needed.
  6. Click and then Create base view.
READ:   Is AP Physics 1 or C Mechanics harder?

How do you manipulate data in hive?

Hive DML (Data Manipulation Language) commands are used to insert, update, retrieve, and delete data from the Hive table once the table and database schema has been defined using Hive DDL commands….The various Hive DML commands are:

  1. LOAD.
  2. SELECT.
  3. INSERT.
  4. DELETE.
  5. UPDATE.
  6. EXPORT.
  7. IMPORT.

How do I find my default database in hive?

By default, the database with the name “default” is the current database in the hive shell. To see the list of all databases, type “show databases”. As you can see, there are 1623 databases in Hive. To see the list of all tables, type “show tables”.

Can we change default database in Hive?

When a user logs into Hue and then opens beeswax, the default Hive database “default” is preselected. I want to change this so that the first database they see is their own sandbox database. Currently, the user has to manually select the database from beeswax or run the use DATABASE command in the editor.

READ:   Why do goldfish swim at top of tank?

Can we rename database in Hive?

You will need to update any VIEW’s original text or expanded text so that any references to the old database need to updated. In my test case, I need to update the above VIEW with the following SQL statement: UPDATE TBLS SET VIEW_EXPANDED_TEXT = ‘select `test`.

How do I find my hive connection URL?

Configuration Required -> PXF JDBC Connector or Hive configuration required for User Identity….JDBC Server Configuration.

Property Value
jdbc.driver org.apache.hive.jdbc.HiveDriver
jdbc.url jdbc:hive2://:/

How do I find my HDFS location?

Access the HDFS using its web UI. Open your Browser and type localhost:50070 You can see the web UI of HDFS move to utilities tab which is on the right side and click on Browse the File system, you can see the list of files which are in your HDFS.

How do you manipulate data in Hive and also write data retrieval queries?

Hive Data Manipulation Language (DML) Commands

  1. LOAD – The LOAD statement transfers data files into the locations that correspond to Hive tables.
  2. SELECT – The SELECT statement in Hive functions similarly to the SELECT statement in SQL.
  3. INSERT – The INSERT clause loads the data into a Hive table.
READ:   What falls under exigent circumstances?