SQL in a Nutshell

Conclusion

The breadth and scope of the SQL commands provide the capability to create and manipulate a wide variety of database objects using the various CREATE, ALTER, and DROP commands. Those database objects then can be loaded with data using commands such as INSERT. The data can be manipulated using a wide variety of commands, such as SELECT, DELETE, and TRUNCATE, as well as the cursor commands, DECLARE, OPEN, FETCH, and CLOSE. Transactions to manipulate the data are controlled through the SET command, plus the COMMIT and ROLLBACK commands. And finally, other commands covered in this chapter include those that control a user’s access to database resources through commands such as GRANT and REVOKE.