How To Fix CNV184 - The generated SQL condition is too long (portion &1, condition &2)

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV - Conversion: Messages for Conversion Services (CNCC)

• Message number: 184

• Message text: The generated SQL condition is too long (portion &1, condition &2)

What causes this issue?

The generated SQL condition is too long (portion &V1&, condition &V2&).
This can happen if the values of the partitioning field are too long as
well.

System Response

The entries are saved in spite of the error in the tables CNVCONDITIONS
or CNVCONDITIONS_DI.

How to fix this error?

Check the corresponding entries in the tables CNVCONDITIONS or
CNVCONDITIONS_DI and correct the conditions manually if required.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV184 - The generated SQL condition is too long (portion &1, condition &2) ?

  The SAP error message CNV184, which states "The generated SQL condition is too long (portion &1, condition &2)," typically occurs during data migration or transformation processes, particularly when using SAP's Data Migration tools or during the execution of SQL queries that exceed the maximum length allowed for SQL conditions.
  Cause:
  
  SQL Condition Length: The error is primarily caused by the SQL condition string exceeding the maximum length that the database can handle. This can happen when there are too many entries in an IN clause or when concatenating multiple conditions results in a very long SQL statement.
  Data Volume: If you are trying to process a large volume of data or have a large number of conditions being generated dynamically, it can lead to this error.
  Complex Queries: Complex queries with multiple joins, subqueries, or conditions can also contribute to the length of the SQL statement.
  
  Solution:
  
  Reduce the Number of Conditions: If possible, try to reduce the number of conditions being passed in the SQL statement. For example, instead of using a long IN clause, consider breaking it down into smaller batches or using temporary tables.
  Batch Processing: If you are processing a large dataset, consider breaking the data into smaller batches and processing them separately to avoid hitting the SQL length limit.
  Optimize SQL Queries: Review and optimize the SQL queries being generated. Simplifying the logic or restructuring the query can help reduce the length.
  Use Temporary Tables: Instead of passing a long list of conditions, you can insert the values into a temporary table and then join that table in your SQL query.
  Check Configuration: Ensure that the configuration settings for the data migration or transformation process are optimized for your specific use case.
  
  Related Information:
  
  Database Limitations: Different databases have different limits on the length of SQL statements. Familiarize yourself with the specific limitations of the database you are using (e.g., Oracle, SQL Server, etc.).
  SAP Notes: Check SAP Notes and Knowledge Base Articles for any specific recommendations or patches related to this error. SAP frequently updates its documentation and may have specific guidance for your version.
  Performance Monitoring: Monitor the performance of your SQL queries and data migration processes to identify any bottlenecks or issues that may lead to this error.
  
  If the problem persists after trying the above solutions, consider reaching out to SAP support for further assistance, providing them with detailed information about the context in which the error occurs.