This video explains how to use the INSERT statement of the Structured Query Language (SQL). It is the second in a series about a subset of SQL known as the Data Manipulation Language (DML), which is used to work with the data in database tables. It includes examples of how to use the INSERT statement with the VALUES clause, and with a SELECT statement to copy records from one table to another. It also briefly mentions the role of an auto-increment column of a table when the INSERT statement is used.