Error
Error Code:
1152
SAP S/4HANA Error 1152: SQL Plan Stability Issue
Description
Error 1152, 'ERR_SQL_PLAN_STABILITY', indicates that the database optimizer's execution plan for a specific SQL statement has become unstable or suboptimal. This often leads to performance degradation or unexpected behavior within SAP S/4HANA, typically occurring after database updates, significant data volume changes, or system migrations.
Error Message
ERR_SQL_PLAN_STABILITY
Known Causes
4 known causesOutdated Database Statistics
The database optimizer relies on current statistics to generate efficient execution plans. If these statistics are old or inaccurate, the optimizer may choose a suboptimal or unstable plan.
Significant Data Volume Changes
Large increases, decreases, or structural changes in data volume for tables involved in critical SQL queries can invalidate existing execution plans, causing the optimizer to re-evaluate.
Database Optimizer Updates
Upgrades, patches, or configuration changes to the underlying database system can alter the optimizer's behavior, potentially leading to new, less stable execution plans for existing queries.
Missing or Ineffective SQL Plan Management
For critical SQL statements, specific hints, SQL plan baselines, or profiles might be required to ensure stable performance, which could be missing or incorrectly configured.
Solutions
Coming SoonDetailed step-by-step solutions for this error are being prepared. In the meantime, try these general troubleshooting tips:
General Troubleshooting Tips
- Check the error message carefully for specific details
- Review recent changes that might have caused the error
- Search for the exact error code in the official documentation
- Check log files for additional context
- Try restarting the application or service