HomeOracleOracle Error ORA-30926: unable to get a stable set of rows in the source tables

Oracle Error ORA-30926: unable to get a stable set of rows in the source tables

Oracle Error Message

ORA-30926: unable to get a stable set of rows in the source tables

Reason for the Error

A stable set of rows could not be got because of large dml activity or a non-deterministic where clause.

“Unable to get a stable set of rows in the source tables” is an error message that can appear in Oracle when performing a data manipulation operation, such as an INSERT or UPDATE statement, on a view or table that has a relationship with another table or view.

This error message is typically displayed when the data in the source tables changes during the operation, resulting in an unstable set of rows being produced. For example, if you insert data into a table with a foreign key relationship to another table and the data in the related table changes during the insert operation, the ORA-30926 error can occur.

Solution

To fix this error, you can try the following solutions:

  • Remove any non-deterministic where clauses and reissue the dml.
  • Use the NOVALIDATE option: When creating a foreign key constraint, use the NOVALIDATE option to disable constraint validation. This can help to avoid the ORA-30926 error when inserting or updating data.
  • Use a transaction: A transaction can be used to lock the data in the source tables during the operation. This can help to prevent data changes that could result in the ORA-30926 error.
  • Use a different data manipulation technique if the ORA-30926 error persists: If the ORA-30926 error persists, you may need to use a different data manipulation technique. For example, you may need to divide the operation into smaller steps or use a different query type.
  • Examine the table relationships: You may need to go over the table relationships to ensure that they are set up correctly. To prevent the ORA-30926 error from occurring, you may need to add additional constraints or update existing constraints.

Share:

Leave a Reply

You May Also Like

Oracle Error Message CLSGN-32767: Internal error. Reason for the Error An unexpected error occurred. Solution Examine the message(s) that accompany...
Oracle Error Message CLSGN-00211: OCR batch operation failed. string Reason for the Error Setting a set of Oracle Cluster Registry...
Oracle Error Message CLSGN-00210: failed to get value for OCR key “string”. string Reason for the Error It was not...