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Discover a comprehensive solution for exporting OLE Object and Binary data from Microsoft Access 2016 using VBA. Learn how to create SQL INSERT statements effectively!
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This video is based on the question https://stackoverflow.com/q/62924799/ asked by the user 'Miguel Velez' ( https://stackoverflow.com/u/12352791/ ) and on the answer https://stackoverflow.com/a/62962876/ provided by the user 'Miguel Velez' ( https://stackoverflow.com/u/12352791/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Mastering Microsoft Access 2016: How to Properly Export OLE Object & Binary Data

Are you struggling with exporting OLE Object and Binary data from Microsoft Access 2016? You’re not alone. Many users encounter issues when attempting to generate SQL INSERT statements for records that contain complex data types such as OLE Objects and Binary fields. If you’ve tried exporting this data only to find question marks and incomplete statements, you’ve come to the right place! In this post, we’ll walk you through the solution, ensuring you can successfully export this data without the hassle.

Problem Overview

When working with Access databases, particularly those containing diverse data types like OLE Object and Binary fields, it's common to face hurdles. These fields often store complex data types (like images, files, etc.), which can lead to problems during export. In particular, exporting to a text file can result in missing or corrupted information, often displayed as question marks (?).

This issue was pondered by one user, Miguel, who sought a solution that would help him write clean SQL INSERT statements for a given table with such fields.

Understanding the Core of the Issue

The challenge arises because standard methods of reading binary data may inadvertently convert the information into a format that is not readable or usable for your text file export. Thus, special handling is needed to convert OLE and Binary data into a proper format that can be inserted back into an Access database or any SQL environment.

The Solution: Converting Byte Arrays to Hexadecimal

After further research, a solution was found that involves converting Byte Arrays (which represents the Binary data) into a hexadecimal string. This approach allows the proper handling of Binary data without data loss or corruption. Here’s a breakdown of how this works:

ByteArrayToHex Function: This function takes a Byte array as input and converts each byte into its corresponding hexadecimal representation.

Hexadecimal Representation: The Hexadecimal format is suitable for SQL statements, as it allows safe and accurate representation of Binary data.

Here is the complete code for the function you need to use:

[[See Video to Reveal this Text or Code Snippet]]

How to Use the Function

Copy the Code: First, copy the provided function into a new module in your Access database.

Call the Function: When constructing your SQL INSERT statements, call ByteArrayToHex(yourByteArray) where yourByteArray is the array of data you want to convert.

Integrate with Your Logic: Ensure this function is used during the data extraction process to convert any Binary fields to Hex format before appending them to your SQL statements.

Conclusion

By implementing the ByteArrayToHex function, you will be able to handle OLE Objects and Binary data in Microsoft Access 2016 seamlessly. This approach will eliminate the confusion of seeing question marks in your exports and provide you with clean, consistent SQL INSERT statements you can use for your records.

If you found this information helpful or have further questions, feel free to reach out! Happy coding!