How can I copy a table to another database in Hive?
To copy a Hive table to another database, you can use Hive’s INSERT INTO and CREATE TABLE statements. Here are the specific steps:
- Create a new table in the source database to store the data that needs to be copied. For example, execute the following command to create a new table:
CREATE TABLE new_table_name AS SELECT * FROM source_table_name;
- To copy a table to another database, you must first create a new table in the target database and then use the INSERT INTO statement to insert the data into the target table. For example, execute the following command to create a new table and insert data into the target table:
CREATE TABLE target_database.new_table_name AS SELECT * FROM source_table_name;
- Make sure the target table already exists in the destination database, otherwise an error will occur. If the target table already exists, you can use the INSERT INTO statement to insert data into the target table. For example, executing the following command will insert data into the target table:
INSERT INTO target_database.new_table_name SELECT * FROM source_table_name;
By following the above steps, you can copy a Hive table to another database. Please choose the method that best suits your situation.