Reference integrity is a feature included in relational database management systems which enforces data integrity. This constraint helps to eliminate redundancy from the database. If two tables enforce referential integrity, then you cannot add a value to the foreign key of one table if no matching value exists in the primary key of the related table. When this property is applied to Access database tables, they might behave inconsistently and sometimes lead to corruption of the Access database. Other causes for MDB file corruption are simultaneous modification of Access components, operating system errors, virus infections etc. Due to this corruption, you may lose all the valuable information present in your Access database. To overcome the problem, you need to go for Access repair through a reliable third-party utility.
For instance, when you try to export a table of your MS Access 2000 database, you may come across the following error message.
“The Microsoft Jet Database Engine could not find the Object ". Make sure the object exists and that you spelled its name correctly.”
Once you click 'OK', you may receive another message as follows:
“An error occurred trying to export the data from table 'tablename'. The data was not exported.”
The above error occurred because the table you are trying to export is having a self-join and memo fields, and referential integrity constraint is applied to it.
Follow the below mentioned procedure to solve the problem-
Transform the Memo fields to Text fields or shift the Memo fields to another table.
After this, execute a 1:1 relationship.
However, if the problem still persists, you should take help of an efficient Access database repair tool. These software are equipped with powerful features that help the users to recover all the damaged Access objects in their original form. They repair Access file by using extremely safe recovery mechanisms and also provide a log report of the repair process.
Stellar Phoenix Access Database Recovery is an advanced utility that Repairs corrupt Access database files created in MS Access 2010, 2007, 2003, 2002, and 2000. It performs a selective repair of database components. It can also recover password-protected VBA code for MS Access forms and modules. Furthermore, it is compatible with Windows 7, Vista, Server 2003, XP, and 2000.
Access database corruption due to referential integrity