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Oracle Application Express 3.2 by Matthew Lyon, Arie Geller

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Creating a new validation

On the Page Definition page, press the Create icon of the Validations section. This will load the Create Validation wizard:

Creating a new validation

Validation level

In the first screen of the wizard we can choose the validation level we want to define:

  • Item level validation: At this level, we define a validation for a specific item on the page.
  • Page level validation: At this level, we can define a validation that is not tied to a specific item on the page (e.g. validation on a tabular form column).

Create multiple not null validations

A Not Null validation is probably the most common validation in use. At the bottom of the first wizard screen, as ...

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