How do I view the contents of a table in Hive?

Where is the data of a hive table located?

Hive stores tables files by default at /user/hive/warehouse location on HDFS file system. You need to create these directories on HDFS before you use Hive. On this location, you can find the directories for all databases you create and subdirectories with the table name you use.

How do I run a view in Hive?

We can execute all DML operations on a view.

  1. Creating a View. You can create a view at the time of executing a SELECT statement.
  2. Example. Let us take an example for view.
  3. Dropping a View. Use the following syntax to drop a view: DROP VIEW view_name.
  4. Creating an Index.
  5. Example.
  6. Dropping an Index.

How do I find the location of an external table in hive?

If you want to see the actual data storage location of hive table,you can use multiple ways .

  1. hive> show create table <TableName>; It will provide you the table syntax long with where actual data located path .
  2. describe extended table_name or describe formatted table_name .

What is the right way to create view?

To create a view, a user must have the appropriate system privilege according to the specific implementation. CREATE VIEW view_name AS SELECT column1, column2.…. FROM table_name WHERE [condition]; You can include multiple tables in your SELECT statement in a similar way as you use them in a normal SQL SELECT query.

How do I change view in Hive?

CREATE VIEW –

  1. CREATE VIEW [IF NOT EXISTS] view_name [(column_list)] AS select_statement.
  2. Hive> CREATE VIEW std_details_v AS SELECT * FROM std_db. std_details;
  3. ALTER VIEW [database_name.]
  4. Hive> ALTER VIEW std_details_v AS SELECT * FROM std_db1.
  5. DROP VIEW [IF EXISTS] [database_name.]

How do I open Hive shell?

Launch PuTTY

  1. start Hive Shell and wait for a successful start.
  2. open the result of the command.
  3. copy session name Hive Shell.
  4. launch PuTTY, open the previously saved Hive Shell profile and, using the right mouse button, insert the saved session name as the user name and hit Enter.
  5. that's it! Pretty simple, isn't it?

How do you create a view from a table?

The syntax for the CREATE VIEW statement in SQL is: CREATE VIEW view_name AS SELECT columns FROM tables [WHERE conditions]; view_name. The name of the SQL VIEW that you wish to create.

How do I view data in SQL table?

Right-click the Products table in SQL Server Object Explorer, and select View Data. The Data Editor launches. Notice the rows we added to the table in previous procedures. Right-click the Fruits table in SQL Server Object Explorer, and select View Data.

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