The APEX_ERROR package provides the interface declarations and some utility functions for an error handling function and includes procedures and functions to raise errors in an Application Express application.

• Constants and Attributes used for Result Types
  
• Example of an Error Handling Function
  
• ADD_ERROR Procedure Signature 1
  
• ADD_ERROR Procedure Signature 2
  
• ADD_ERROR Procedure Signature 3
  
• ADD_ERROR Procedure Signature 4
  
• ADD_ERROR Procedure Signature 5
  
• APEX_ERROR.HAVE_ERRORS_OCCURRED Function
  
• AUTO_SET_ASSOCIATED_ITEM Procedure
  
• EXTRACT_CONSTRAINT_NAME Function
  
• GET_FIRST_ORA_ERROR_TEXT Function
  
• INIT_ERROR_RESULT Function