Query Nightmare? Fixing “Error 3340: Access Query Is Corrupt” Like a Pro!

Runtime error 3340: Access Query is corrupt is a common issue in the Access databases that display when trying to run a query or update a query in a VBA code. This warning message can lead to significant disturbances in database functionality. Well, in this blog, I will explore the intricacies of this runtime error, discover its causes, & provide practical fixes to troubleshoot the MS Access query corruption 3340 error.

error 3340: Access Query is corrupt

But before digging into the solutions, let’s know something about this error in detail.

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What Is a Query in Access Database?

Query in the Access database is a combination of various tables and it includes lots of commands like insert, create, delete, select, and many others. These queries are much simpler but a bit of modification can cause disasters. So, you need to deal very carefully with the Access database queries diligently.


Improper handling of an Access database can often result in an unusable database or to the state in which the database experiences errors.

What Are the Different Types of Queries in MS Access?

There are 6 types of queries in the MS Access database, they are as follows:

  1. Select queries
  2. Parameter queries
  3. Action queries
  4. Append queries
  5. Crosstab queries
  6. SQL queries.

How to Know If Access Database Query Is Corrupt?

Access database contains crucial objects, like tables, queries, reports, forms, macros, and modules. During modification of the query objects or after executing the query, it can lead to db query corruption and display various errors, such as:

  • “Operation must use an updateable query” error
  • “System Resource Exceeded” Error
  • “ORA-01013 User Requested Cancel of Current Operation”
  • “Cannot Group On Fields Selected With ‘*'”
  • Access Query Dlookup not returning value #error
  • MS Access query invalid operation

When running the query in Access VBA, if any of these error appears on the PC screen, it simply means your query is corrupted, it should be fixed.

Common Reasons for MS Access Query Corruption

MS Access queries are built with numerous conditional statements, so minor changes in the queries can result in complete damage to the database. Here I will shortlist the major factors for Access database query corruption 3340 error. So, let’s take a look:

  1. The Access database or the queries are itself corrupted.
  2. If your Access database is stored at an untrusted location, you may receive a 3340 error.
  3. Pending Office updates.
  4. Due to disabled Referential Integrity.
  5. Missing parameters in the query.
  6. Power outages or PC crashes during query execution.
  7. Complex SQL queries.

How to Fix Error 3340: Access Query Is Corrupt?

Follow the below stepwise methods to solve runtime error 3340 in Access.

Solution 1- Check For the Updated Backup

Restoration Of Data Without Backup

If you have an updated backup or an extra copy of the corrupted database file, it is suggested to restore that backup file and perform a query in that database. It is a primary troubleshooting method for most of the Access users to deal with runtime errors in a hassle-free manner.

Also Read: Access Database Engine Cannot Find the Input Table or Query (Error 3078)

Solution 2- Clear All Name AutoCorrect Options

In case you don’t have the proper and complete backup then you need not worry. Because these times you can easily troubleshoot and resolve this issue on your own. For that, you need to clear all Name AutoCorrect options.  To perform this follow the below-mentioned steps:

  1. Go to File tab >> the Options >> Access Options.
  2. After the opening of the dialog box tap on the Current Database
  3. Clear the below checkboxes under Name AutoCorrect option:
    • Track name AutoCorrect info
    • Perform name AutoCorrect
    • Log name AutoCorrect changes
  4. Click OK.

error 3340: Access Query is corrupt

Solution 3- Simplify the Database Queries

As already mentioned in the causes section, error 3340: Access Query is corrupt can occur if there’s a problem with the queries in a specific database. All you need to do is to check for the query and remove joins, functions, nested functions, or subqueries. Also, ensure to install the latest Office updates.

Solution 4- Restore Objects In A Database

To restore one or more objects in the database, import the objects from the backup copy of the database into the database that contains the object that you want to restore.

  • Open a database in which you want the get the object
  • Hit the External Data, and in the Import & Link group, tap to the Access option.

error 3340: Access Query is corrupt

  • In the Get External Data-Access Database dialog box, hit the Browse option to select the backup database, and then hit to Open.
  • Select Import tables, queries, forms, reports, macros, and modules into the current database, and then click OK.
  • In the Import Objects dialog box, hit the tabs that correspond to the type of objects that you want to restore.

Import Corrupt Database into new MS Access Database

Eg: to restore a table, hit the Tables tab.

  • Click the object to select it.
  • To restore more objects just repeat steps no.6 and 7 until you have selected all the objects that you want to restore.
  • Review the import option before importing the objects, in the Import Objects dialog box, tap to the Options.
  • After selecting the objects and import setting options, tap on the OK option to restore the objects.

Solution 5- Change the Database Location

If your Access database isn’t stored at the trusted location then also you can encounter this runtime error. In such a situation, you can move a database file to a trusted location by following the below steps:

  • Open Access >> click File>> Options.
  • Under Access Options, choose Trust Center >> Trust Center Settings.

error 3340: Access Query is corrupt

  • After that, click on Trusted Locations>> choose Allow Trusted Locations on my network to add the network location.

Move the Database to a Trusted Location 3

  • Now, you have to choose Add New Location.
  • Under Microsoft Office Trusted window, click on Browse option to browse to a location.
  • Check the “Subfolders of this location are also trusted” checkbox if you need to specify subfolders.
  • After successfully adding a trusted location, tap OK.

Trust Center Settings

  • Now, you can move your database to a newly added location.

Also Read: Access Can’t Append All The Records In The Append Query Error

Solution 6- Fix Error 3340: Access Query Is Corrupt by Enabling Referential Integrity

Enabling the Referential Integrity in Access database can also fix Microsoft Access Query is corrupt issue. Follow the below instructions carefully to do so:

  • In MS Access, click Database Tools>> Relationships.

Enabling Referential Integrity

  • Then, double-tap on a line between 2 tables.
  • Under Edit Relationships, choose “Enforce Referential Integrity” checkbox >> hit OK.

Enabling Referential Integrity

  • Finally, close the window.

Solution 7- Using Compact and Repair Tool

Sometimes, runtime errors occur in the Access due to database corruption that can be easily fixed by using the built-in MS Access tool i.e “Compact and Repair Database”. Here are the steps to repair Access database files using this utility:

  • Open Microsoft Access >> click on ‘Compact and Repair Database’ option on Tools.

Compact and Repair Database

  • Select ‘Database to Compact From’ >> click ‘Compact’ button.

error 3340: Access Query is corrupt

  • As soon as you click on “Compact” option, the repair process gets started.
  • Wait for the repair process to be completed. After completing all this, just make click on ‘Save’ button.

If the Compact and Repair tool doesn’t fix the Query is corrupt problem, likely, the database is severely corrupted that holds the query. In such a case, you must opt for Access Repair Tool to repair corrupt database files. Apart from fixing the db, it can restore tables, queries, forms, macros, reports, etc. from the corrupt file.

* By clicking the Download button above and installing Stellar Repair for Access (14.8 MB), I acknowledge that I have read and agree to the End User License Agreement and Privacy Policy of this site.

Frequently Asked Questions:

Is There a Risk of Data Loss During the Troubleshooting Process?

It is recommended to create a backup before you begin the troubleshooting process as it minimizes the risk of data loss.

Can Error 3340 Be Prevented Entirely?

Regular maintenance & staying updated to the latest Office version can significantly diminish the likelihood of facing error 3340.

What Should I Do If None of The Troubleshooting Steps Work?

If none of the troubleshooting steps work, you should Contact Microsoft support for comprehensive assistance.


Fixing the Access 3340 error code can pose significant challenges to Access users. However, by applying the troubleshooting methods outlined in this blog, users can easily overcome the situation. But if the error has occurred due to severe db corruption, opt for automatic Access Repair Software. Also, ensure regular maintenance of backup to avoid such errors in the future.


tip Still having issues? Fix them with this Access repair tool:

This software repairs & restores all ACCDB/MDB objects including tables, reports, queries, records, forms, and indexes along with modules, macros, and other stuffs effectively.

  1. Download Stellar Repair for Access rated Great on Cnet (download starts on this page).
  2. Click Browse and Search option to locate corrupt Access database.
  3. Click Repair button to repair & preview the database objects.

Pearson Willey is a website content writer and long-form content planner. Besides this, he is also an avid reader. Thus he knows very well how to write an engaging content for readers. Writing is like a growing edge for him. He loves exploring his knowledge on MS Access & sharing tech blogs.