How to view data in a table in Hive?

2 years ago
Isabella Edwards
1 minute

You can use the SELECT statement in Hive to view data in a table. Here are the steps to query data in a Hive table.

  1. Open the Hive command line terminal or use Hive client tools such as Hue or Beeline.
  2. Switch to the database named “database_name”.
  3. Retrieve all data from table_name.
  4. After executing the query statement, the query results will be returned.

In addition to using the SELECT statement to retrieve data from an entire table, you can also add a WHERE clause to filter the data. For example, you can use the following statement to query data that meets specific criteria:

SELECT * FROM table_name WHERE condition;

Condition is the search criteria, which can be a combination of one or more conditions.

Additionally, if you want to see the structure of the table (including column names and data types), you can use the DESCRIBE statement.

DESCRIBE table_name;

After executing this statement, it will return information such as column names and data types of the table.

Please note that the database_name and table_name in the above query statement need to be replaced with the actual database name and table name.

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