How To Fix D3788 - Sort over a internal table failed

SAP Error Message - Details

• Message type: E = Error

• Message class: D3 - CCMS - DB2 on OS390

• Message number: 788

• Message text: Sort over a internal table failed

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message D3788 - Sort over a internal table failed ?

  The SAP error message D3788, which states "Sort over an internal table failed," typically occurs when there is an issue with sorting an internal table in ABAP (Advanced Business Application Programming). This error can arise due to various reasons, and understanding the cause is essential for finding a solution.
  Causes:
  
  Invalid Data Types: The internal table may contain fields with incompatible data types that cannot be sorted.
  Empty Internal Table: If the internal table is empty, sorting may fail, especially if the sort criteria are not defined properly.
  Incorrect Sort Criteria: The fields specified for sorting may not exist in the internal table or may not be defined correctly.
  Memory Issues: If the internal table is too large, it may lead to memory issues during the sorting process.
  Non-unique Keys: If the sorting is based on non-unique keys and the internal table is not defined to handle duplicates, it may lead to errors.
  
  Solutions:
  
  
  Check Data Types: Ensure that all fields in the internal table that are being sorted are of compatible data types. If necessary, convert the fields to a common data type before sorting.
  
  
  Validate Internal Table: Before performing the sort operation, check if the internal table is empty. You can use the DESCRIBE TABLE statement to check the number of entries.
  DATA: lv_count TYPE i.
  DESCRIBE TABLE it_table COUNT lv_count.
  IF lv_count = 0.
    " Handle empty table case
  ENDIF.
  
  
  Review Sort Criteria: Ensure that the fields specified in the SORT statement exist in the internal table and are correctly spelled.
  SORT it_table BY field1 field2.
  
  
  Optimize Memory Usage: If the internal table is large, consider using a more efficient sorting algorithm or breaking the data into smaller chunks before sorting.
  
  
  Handle Duplicates: If the internal table can contain duplicates and this is causing issues, consider using the DELETE ADJACENT DUPLICATES statement before sorting.
  DELETE ADJACENT DUPLICATES FROM it_table COMPARING field1 field2.
  
  
  Related Information:
  
  ABAP Documentation: Refer to the official SAP ABAP documentation for more details on internal tables and sorting.
  Performance Considerations: Sorting large internal tables can be resource-intensive. Consider performance implications and optimize your code accordingly.
  Debugging: Use the ABAP debugger to step through the code and inspect the internal table before the sort operation to identify any anomalies.
  
  By addressing the potential causes and implementing the suggested solutions, you should be able to resolve the D3788 error in your SAP environment.