Which command would you use to review the history of a Delta Parquet table named FactSales?

• A. DESCRIBE
• B. DESCRIBE HISTORY
• C. SHOW HISTORY
• D. LIST HISTORY

Answer: (A)

To review how a Delta table has changed over time, you query its versioned transaction log with DESCRIBE HISTORY followed by the table name. This command returns a sequence of historical entries including the version number, timestamp, operation type (such as append, overwrite, or delete), and a summary of the changes, giving you a view of the table’s evolution and enabling time-travel to a specific version if needed.

DESCRIBE, on the other hand, shows the current table metadata like columns and data types but does not reveal past changes. The other two options aren’t the standard syntax for accessing Delta table history and don’t provide the historical log in the way DESCRIBE HISTORY does.