Using Application Contexts to Retrieve User Information

An application context stores user identification that can enable or prevent a user from accessing data in the database.

• About Application Contexts
  An application context provides many benefits in controlling the access that a user has to data.

• Types of Application Contexts
  There are three general categories of application contexts.

• Using Database Session-Based Application Contexts
  A database session-based application context enables you to retrieve session-based information about a user.

• Global Application Contexts
  You can use a global application context to access application values across database sessions, including an Oracle Real Application Clusters environment.

• Using Client Session-Based Application Contexts
  A client session-based application context is stored in the User Global Area (UGA).

• Application Context Data Dictionary Views
  Oracle Database provides data dictionary views that provide information about application contexts.