How do I update the 'people_10m' table using the 'people_10m_updates' DataFrame in Databricks?
To update the 'people_10m' table using the 'people_10m_updates' DataFrame in Databricks, you can use the following SQL command:

MERGE INTO people_10m USING people_10m_updates ON people_10m.id = people_10m_updates.id WHEN MATCHED THEN UPDATE SET * WHEN NOT MATCHED THEN INSERT \*;

This command merges the 'people_10m_updates' DataFrame into the 'people_10m' table based on the matching 'id' column. When there is a match, it updates all the columns in the 'people_10m' table with the values from the 'people_10m_updates' DataFrame. When there is no match, it inserts all the columns from the 'people_10m_updates' DataFrame into the 'people_10m' table.

After running the update command, you can query the 'people_10m' table to see the updated results.

SELECT \* FROM main.default.people_10m WHERE id >= 9999998;

This command selects all the rows from the 'people_10m' table where the 'id' column is greater than or equal to 9999998, which includes the updated and inserted rows.