In this chapter, you learned how to gather information from a table to use it to INSERT, UPDATE, and DELETE data. You learned how to insert data using single- and multiple-row methods. You also learned how to create a new table and insert data from an existing table into it, as well as how to insert data from an existing table into another existing table.
You learned how to delete all the data from a table and how to delete only some data in a table. You also learned how to update all the data in a table and how to update only some of the data in a table. You learned what a transaction is and how to use it, including how to start a transaction and how to commit or roll back a transaction.
Finally, you learned how to modify the table structure, including how to add and drop columns, how to rename a column, how to change the data type of a column, how to add, change,...
