When you fill in a form, the entered data must be validated, just to make sure that it is correct. Date fields, number fields where the number should not exceed some defined limit, items with a certain format like a telephone number or an e-mail address, all this data has to be validated. In APEX you can use validations to check the user input.
For this recipe we will use a user profiles form where the user can enter some personal information. Make sure you have access to the
app_user_profiles table and the
app_ups_seq sequence. You can create a user profiles form using these steps: