Summary
In this chapter we reviewed the APEX validation concepts, which help us to preserve the quality, accuracy, and consistency of our data. APEX includes a built-in server-side, declarative validation mechanism that supports both item and page level validations while allowing us to use SQL or PL/SQL code, various pre-defined declarative options of string comparison, and Oracle regular expressions to validate our data. APEX also allows us to implement our own client-side validation mechanism and its built-in JavaScript library includes some functions to support it.
In the next chapter, we are going to review APEX Processes.
