How To Fix RSDU_REPART814 - The estimated fact table size of &1 GB exceeds the DB limit of &2 GB

SAP Error Message - Details

• Message type: E = Error

• Message class: RSDU_REPART - Messages for Repartitioning InfoProviders

• Message number: 814

• Message text: The estimated fact table size of &1 GB exceeds the DB limit of &2 GB

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSDU_REPART814 - The estimated fact table size of &1 GB exceeds the DB limit of &2 GB ?

  The SAP error message RSDU_REPART814 indicates that the estimated size of a fact table exceeds the database limit for that table. This typically occurs during the process of data modeling or when attempting to load data into a fact table in SAP BW (Business Warehouse).
  Cause:
  
  
  Estimated Size Exceeds Limit: The error arises when the estimated size of the fact table (in gigabytes) exceeds the maximum allowed size for a table in the database. This can happen due to:
  
  A large volume of data being loaded into the fact table.
  Inefficient data modeling or design that leads to excessive data duplication.
  Incorrect settings or configurations in the data source or data model.
  
  
  
  Database Limitations: Different databases have different limitations on the size of tables. For example, some databases may have a limit of 2 GB, while others may allow larger sizes.
  
  
  Solution:
  
  
  Review Data Model: Analyze the data model to ensure that it is optimized. Look for:
  
  Redundant or unnecessary data that can be removed.
  Aggregation of data where possible to reduce the volume of data being loaded.
  
  
  
  Partitioning: If the database supports it, consider partitioning the fact table. This can help manage large datasets by splitting them into smaller, more manageable pieces.
  
  
  Data Reduction Techniques: Implement data reduction techniques such as:
  
  Filtering out unnecessary data before loading.
  Using data archiving strategies to keep only relevant data in the fact table.
  
  
  
  Database Configuration: Check the database configuration settings to see if the limits can be adjusted. Consult with your database administrator to understand the maximum table size and whether it can be increased.
  
  
  Use of Aggregates: Instead of loading all detailed data into the fact table, consider creating aggregates that summarize the data. This can significantly reduce the size of the fact table.
  
  
  Check for Errors in Data Load: Ensure that there are no errors in the data load process that might be causing an unexpected increase in the estimated size.
  
  
  Related Information:
  
  Database Documentation: Refer to the documentation of the specific database you are using (e.g., Oracle, SQL Server, HANA) for details on table size limits and partitioning options.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions to common problems.
  Performance Monitoring: Use SAP BW performance monitoring tools to analyze data load processes and identify bottlenecks or inefficiencies.
  
  By following these steps, you should be able to address the error message RSDU_REPART814 and successfully manage the size of your fact tables in SAP BW.