Populating Tables

Respond to the following in a minimum of 175 words:

After you create a relational table using the SQL statement CREATE TABLE, you can populate that table with data using the INSERT INTO statement.

Do you think it is more common that businesses populate databases table by table, one record at a time, using the INSERT INTO statement, or using some other method?

What happens if human error occurs and data is incorrectly populated into one or more tables?

How would a user of a database system know that an error occurred?