How to view all table fields in Impala?
To view the fields of all tables in the Impala database, you can use the following command:
- Access the Impala Shell: Enter impala-shell in the terminal and press Enter.
- Connect to the Impala database by entering “use your_database_name;” in the Impala Shell, replacing “your_database_name” with the actual database name, and pressing Enter.
- To view all tables, type “show tables;” and press Enter. This will display the names of all tables.
- View the fields of the table: For each table, type in describe your_table_name; replacing “your_table_name” with the actual table name, and press Enter. This will display all the fields and their attributes of that table.
Repeat step 4 to view the fields of all tables.