How To Fix HDBCK027 - Check for _sys_statistics.statistics_properties

SAP Error Message - Details

• Message type: E = Error

• Message class: HDBCK - HDB: System Check Messages

• Message number: 027

• Message text: Check for _sys_statistics.statistics_properties

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message HDBCK027 - Check for _sys_statistics.statistics_properties ?

  The SAP error message HDBCK027, which refers to a check for _sys_statistics.statistics_properties, typically indicates an issue related to the statistics of the database in SAP HANA. This error can arise during database checks or maintenance tasks, and it usually points to inconsistencies or problems with the statistics that are used by the query optimizer.
  Cause:
  
  Corrupted Statistics: The statistics for certain tables or columns may be corrupted or not properly updated.
  Inconsistent Metadata: There may be inconsistencies in the metadata of the database, which can lead to issues in how statistics are interpreted.
  Database Upgrades or Migrations: If the database has been recently upgraded or migrated, the statistics may not have been recalibrated or updated correctly.
  Manual Changes: Manual changes to the database schema or data can also lead to discrepancies in the statistics.
  
  Solution:
  
  
  Recalculate Statistics: The most common solution is to recalculate the statistics for the affected tables. This can be done using the following SQL command:
  ANALYZE TABLE <schema_name>.<table_name>;
  You can also analyze all tables in a schema or the entire database if necessary.
  
  
  Check for Inconsistencies: Use the SAP HANA database tools to check for inconsistencies in the database. You can run the following command:
  CHECK TABLE <schema_name>.<table_name>;
  
  
  Repair the Database: If the issue persists, you may need to perform a repair operation on the database. This can be done using the HANA Studio or command line tools.
  
  
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error. There may be patches or updates available that can resolve the issue.
  
  
  Database Backup and Restore: If the problem cannot be resolved through the above methods, consider restoring the database from a backup taken before the issue occurred.
  
  
  Related Information:
  
  SAP HANA Documentation: Refer to the official SAP HANA documentation for detailed information on managing statistics and performing database maintenance.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Monitoring Tools: Utilize SAP HANA monitoring tools to keep an eye on database performance and statistics, which can help prevent such issues in the future.
  
  If the problem continues after trying these solutions, it may be necessary to contact SAP support for further assistance.