How To Fix 1X170 - Seet performance note about comparing big structures

SAP Error Message - Details

• Message type: E = Error

• Message class: 1X - General hierarchy maintenance tool message

• Message number: 170

• Message text: Seet performance note about comparing big structures

To compare the original of a big structure with one of its versions:
Create a new and current version of the original, automatically in the
background.
Compare the new version with an older one.
Reason: The system needs considerably less time to read a version than
to read the original structure, because the data of a version is stored
more compactly.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 1X170 - Seet performance note about comparing big structures ?

  The SAP error message 1X170 typically relates to performance issues when comparing large structures in ABAP programs. This message is a performance note that indicates that the comparison of large data structures can lead to inefficient processing and may impact the overall performance of the application.
  Cause:
  The primary cause of this error message is the comparison of large internal tables or structures in ABAP. When you compare large data sets, the system may take a significant amount of time to process the comparison, leading to performance degradation. This can occur in various scenarios, such as:
  
  Using LOOP AT ... WHERE or similar constructs on large internal tables.
  Performing direct comparisons of large structures or tables in conditional statements.
  Inefficient algorithms or logic that involve multiple comparisons of large datasets.
  
  Solution:
  To address the performance issues indicated by the 1X170 error message, consider the following solutions:
  
  
  Optimize Data Structures:
  
  Review the size of the structures or tables being compared. If possible, reduce the size by removing unnecessary fields or splitting large structures into smaller, more manageable ones.
  
  
  
  Use Efficient Comparison Techniques:
  
  Instead of comparing entire structures, consider comparing only the necessary fields. This can significantly reduce the amount of data being processed.
  Use hash tables or other data structures that allow for faster lookups and comparisons.
  
  
  
  Limit Data Volume:
  
  If you are working with large datasets, try to limit the volume of data being processed at any one time. This can be done by implementing pagination or filtering data before performing comparisons.
  
  
  
  Use Performance Analysis Tools:
  
  Utilize SAP performance analysis tools such as the ABAP Runtime Analysis (transaction SE30) or SQL Trace (transaction ST05) to identify bottlenecks in your code.
  
  
  
  Review and Refactor Code:
  
  Analyze the logic of your program to identify any unnecessary comparisons or loops. Refactor the code to improve efficiency.
  
  
  
  Consider Using Native SQL:
  
  If applicable, consider using native SQL queries to perform comparisons directly in the database, which can be more efficient than processing large datasets in ABAP.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional guidance or updates related to this error message. SAP Notes can often provide specific recommendations or patches to improve performance.
  Performance Tuning: Familiarize yourself with general performance tuning techniques in ABAP, such as avoiding nested loops, using appropriate indexing, and minimizing database calls.
  Documentation: Review the official SAP documentation for best practices in handling large data structures and performance optimization.
  
  By following these recommendations, you should be able to mitigate the performance issues associated with the 1X170 error message and improve the efficiency of your ABAP programs.