For Oracle Database 12c Release 2 (12.2), Oracle Database 2 Day Developer's Guide has these changes:

• You are encouraged to use the currently available release of SQL Developer (see "Connecting to Oracle Database from SQL Developer").

For Oracle Database 12c Release 1 (12.1), Oracle Database 2 Day Developer's Guide has these changes:

• If you use SQL Developer, you must use version 3.2 or later (see "Connecting to Oracle Database from SQL Developer").

• Connecting to Oracle Database and Exploring It, covers the topics previously covered in Chapter 1 through Chapter 3, has the new topic "Exploring Oracle Database with SQL*Plus", and has some new and changed examples.

• The schema objects that you create in the tutorials in About DML Statements and Transactions, Creating and Managing Schema Objects, and Developing Stored Subprograms and Packages, (formerly Chapter 5, Chapter 6, and Chapter 7) are no longer used in a sample application.

• Developing Stored Subprograms and Packages, has the new topic "When to Use Exception Handlers".

• New Building Effective Applications, explains how to build scalable applications and use recommended programming and security practices.

• New Developing a Simple Oracle Database Application, shows how to develop a simple Oracle Database application.

• Deploying an Oracle Database Application, has the new topic "Creating Installation Scripts with the Cart" and explains how to deploy the application that you develop in Developing a Simple Oracle Database Application.