Advanced Data Validation Techniques for MS Access

In this Microsoft Access tutorial, I will show you how to use advanced data validation techniques, including input masks, field- and table-level validation rules, and VBA with the Before Update event to prevent duplicate entries and ensure your data stays accurate. You will also learn practical examples of using the DLookup and NZ functions to compare data across records.

Members

There is no extended cut, but here is the file download:

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Prerequisites

• Intro to VBA
• If Then
• DLookup
• NZ Function

Links

• Required
• Input Mask
• Validation Rules
• Table-Level Validation
• Before Update
• BeforeUpdate & AfterUpdate

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Keywords

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