How to Import Multiple XML Files into Related Access Tables
Question details
The user needs to import data from multiple XML files with separate sections into Microsoft Access and establish proper relationships between the resulting tables using a shared key.
- Product
- Microsoft Access
- Device & OS
- not provided
- Scenario
- Importing complex XML data that spans multiple files and sections into a relational database structure.
- Observed behavior
- Microsoft Access imports different XML sections into separate, unlinked tables, requiring a method to map and relate the imported records using a common identifier.
Ensure your XML files share at least one common identifier, such as an SSN or subject ID, across the different sections to successfully build relationships in your database.
Use Staging Tables and Append Queries
Import the XML data into temporary staging tables first, then use append queries to distribute the related data into your final tables.
When XML data structures do not perfectly match your target Access tables, the safest approach is to stage the data temporarily. This allows you to review the shared keys before committing the records to your main database.
Go to the External Data tab, select XML File, and import your XML files into new temporary tables (staging tables).
Open the new staging tables and confirm that a common key, such as an SSN, is present to link the different sections.
Navigate to Create > Query Design, select your staging table, and click Append on the ribbon to select your final destination table.
Map the shared key and other relevant fields in the query grid, then click Run to move the data into the properly related permanent tables.
Automate the Import Process Using VBA
Write a VBA script to loop through multiple XML files in a folder, importing and appending them automatically.
Manage Your Tabular Data Easily with WPS Office
While Microsoft Access is designed for complex relational databases, WPS Office provides a free, lightweight, and powerful alternative for managing everyday tabular data, spreadsheets, and documents.
- 1. Download and Install: Visit the official WPS website to download the free suite and complete the quick installation.
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Frequently Asked Questions
Can Microsoft Access automatically link XML tables upon import?
No, Access typically imports different sections of an XML file into separate, unlinked tables. You must establish the relationships manually or via queries using a shared key.
What if my XML files do not have a shared identifier?
If there is no shared key like an SSN or an ID, you will need to modify the source XML files or use an external script to inject a relational key before importing the data into Access.
Can I import XML data directly into existing Access tables?
Yes. During the import process through the External Data tab, you can choose to append the data directly to an existing table, provided the XML structure exactly matches your table's schema.
