How can I check the table structure of an impala database?

1 year ago
Ava Mitchell
2 minutes

To view the structure of an Impala table, you can use the following command:

  1. First, connect to the Impala Shell.
  2. Use the DESCRIBE command to view the structure of a table. For example, if you want to see the structure of a table called my_table, you can enter the following command:
  3. Please provide information about my_table.
  4. This will display the column names, data types, and other attributes of the table.
  5. To view a more detailed table structure, you can use the SHOW CREATE TABLE command. For example, input the following command to view the detailed structure of my_table:
  6. Display the structure of the “my_table” table.
  7. This will display the SQL statement for creating a table, including column names, data types, partitions, and other properties.
  8. To view the statistics of a table, you can use the SHOW COLUMN STATS command. For example, enter the following command to view the column statistics of my_table:
  9. Display statistics for the columns in my_table.
  10. This will display statistics for each column, including the minimum value, maximum value, and the number of unique values.

Here are some common commands for viewing table structures using Impala. Depending on your specific needs, you can select the appropriate command to view the structure information of the table.

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