How can a temporary table be created in Hive and data be imported into it?

2 years ago
Olivia Parker
1 minute

To create a temporary table and import data in Hive, follow these steps:

  1. Open the Hive command line interface or connect to the Hive service using the Hive client.
  2. The syntax for creating a temporary table is as follows:
CREATE TEMPORARY TABLE temp_table_name (
  column1 data_type,
  column2 data_type,
  ...
)

In the above syntax, temp_table_name is the name of the temporary table, column1, column2, etc are the column names of the table, and data_type is the data type of the column.

  1. The syntax for importing data into a temporary table is as follows:
LOAD DATA [LOCAL] INPATH 'input_file_path' [OVERWRITE] INTO TABLE temp_table_name

In the above syntax, the LOCAL keyword indicates that the imported file path is a local path (not an HDFS path), input_file_path is the data file path to be imported, and the OVERWRITE keyword means that if the temporary table already exists, it will be overwritten.

  1. Choose

Please note that temporary tables in Hive will be automatically deleted at the end of the session. If you need to share data between different Hive sessions, consider creating permanent tables.

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