What is the method for bulk importing data in Hive?

1 year ago
Ava Mitchell
1 minute

There are various methods for bulk importing data into Hive, with one of the most commonly used methods being:

  1. You can use the native LOAD DATA statement in Hive to import data files into a Hive table at once. The syntax is as follows:
LOAD DATA [LOCAL] INPATH 'input_path' [OVERWRITE] INTO TABLE table_name;
  1. One way to import data into a target table in Hive is by using the INSERT INTO statement, which allows you to insert data from another Hive table. The syntax is as follows:
INSERT INTO TABLE target_table SELECT * FROM source_table;
  1. You can utilize Hadoop file system commands with Hive by copying data files directly to the storage path of a Hive table, then creating an external table in Hive to import the data.
  2. Using the Sqoop tool: Sqoop is an open-source tool that helps users transfer data between Hadoop and relational databases. With Sqoop, users can import data in bulk from relational databases into Hive tables.
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