フリー問題

問題文

Which command tells an analyst whether a table is external, and which file format the table uses?

選択肢

1. The additional output of the SHOW TABLES listing reveals the external marking, and the identical output prints the sampled counts recorded for the table.
2. The additional output of the DESCRIBE FORMATTED variation reveals the external marking, and the identical output prints the file format recorded for the table.
3. The additional output of the DESCRIBE FORMATTED variation reveals the external marking, and the identical output prints the sampled counts recorded for the table.
4. The additional output of the SHOW TABLES listing reveals the external marking, and the identical output prints the file format recorded for the table.