How To Fix CNV_IUUC_DB_CONN083 - Table &1 already exists in schema &2 with different structure

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_IUUC_DB_CONN - db connection

• Message number: 083

• Message text: Table &1 already exists in schema &2 with different structure

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_IUUC_DB_CONN083 - Table &1 already exists in schema &2 with different structure ?

  The SAP error message CNV_IUUC_DB_CONN083 indicates that there is a conflict with a database table during a data migration or conversion process. Specifically, it means that the table you are trying to create already exists in the specified schema, but its structure (i.e., the columns, data types, or other attributes) is different from what the migration process expects.
  Cause:
  
  Existing Table: The table already exists in the target schema, which can happen if a previous migration attempt was partially successful or if the table was created manually.
  Different Structure: The existing table has a different structure than what the migration process is trying to create. This could be due to changes in the source system, changes in the migration logic, or differences in the database schema.
  
  Solution:
  
  
  Check Existing Table: 
  
  Use database tools or SQL queries to inspect the existing table's structure. Compare it with the expected structure that the migration process is trying to create.
  Example SQL query to check the structure:
  DESCRIBE schema_name.table_name;
  
  
  
  
  Decide on Action:
  
  If the existing table is not needed: You can drop the existing table if it is safe to do so. Use the following SQL command:
  DROP TABLE schema_name.table_name;
  
  If the existing table is needed: You may need to modify the existing table to match the expected structure. This could involve adding or removing columns, changing data types, etc. Use the ALTER TABLE command as necessary.
  
  
  
  Adjust Migration Logic: If the existing table is correct and should not be altered, you may need to adjust the migration logic to accommodate the existing structure. This could involve changing the mapping or transformation rules in the migration tool.
  
  
  Re-run Migration: After resolving the conflict, re-run the migration process to ensure that it completes successfully.
  
  
  Related Information:
  
  Backup: Always ensure that you have a backup of your data before making any changes to the database schema or dropping tables.
  Documentation: Refer to the SAP documentation for the specific migration tool you are using (e.g., SAP S/4HANA Migration Cockpit, SAP Data Services) for detailed instructions and best practices.
  Logs: Check the migration logs for additional context or errors that may provide more insight into the issue.
  Support: If you are unable to resolve the issue, consider reaching out to SAP support or consulting with a database administrator who has experience with SAP migrations.
  
  By following these steps, you should be able to resolve the CNV_IUUC_DB_CONN083 error and successfully proceed with your migration or data conversion process.