5 About Upgrading Applications
Learn how to rebuild Application Programs in the following topics.
Related Topics
5.1 Precompile and Compile Application Programs
You must change the Application code when APIs are deprecated or changed.
- Make the necessary code changes for APIs that are either deprecated or changed.
- Precompile and compile embedded SQL applications.
- Compile OCI applications with the new software.
- Relink the application using the libraries of the new release of Oracle Database.
By recompiling, you perform a syntax check of your application code. Some problems in the application code that were not detected by previous releases of the Oracle software can emerge when you precompile or compile with the new Oracle Database software. Precompiling and compiling with the latest release of Oracle Database software helps you to detect and correct problems in the application code that were previously unnoticed.
5.2 Link Application Programs
Statically-linked code can be incompatible with the upgraded Oracle Software.
It is very important that you relink statically-linked applications using the libraries of the new release of Oracle Database Software.
5.3 Update ORAENV Files
Check your ORAENV files, and if necessary, update the value
of the ORAUID, ORACLE_BASE, and
ORACLE_HOME environment variables.
The ORAUID environment variable must refer to the correct Oracle
Database installation user ID and the ORACLE_HOME environment variable
must refer to the corresponding Oracle home directory in the POSIX file system. Also
check other environment variables and update them as required.
Use the INSTALL.P.USER procedure to create a template of an
ORAENV file for the new release of Oracle Database.