Lesson Summary
- Explain how SQL Plan Stability ensures consistent query performance by capturing and reapplying optimal execution plans.
- Describe the role of Abstract SQL Plans (ASPs) in capturing and regenerating execution plans across different system versions.
- Outline the steps in the SQL Plan Stability capture process, including plan compilation, ASP creation, and execution statistics collection.
- Summarize the application process for SQL Plan Stability, highlighting how ASPs guide the optimizer to recreate consistent execution plans.
- Distinguish between ASP usage in SAP HANA Cloud and SAP HANA 2.0, noting differences in abstraction levels and integration with SQL Plan Advisor.
- Identify the benefits of using SQL Plan Stability, such as ensuring predictable query performance, reducing performance regressions, and lowering CPU overhead.