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I will optimize oracle sql queries and database performance
About this Gig
Slow Oracle SQL or database performance problems? I am a DBA with over 10 years of database experience, including Oracle, MySQL and Redis.
This service focuses on:
- SQL execution-plan and index review.
- Query rewrites and access-path improvements where appropriate.
- Locking, waits and resource evidence related to the agreed issue.
- Practical tuning recommendations and validation.
Basic diagnoses one SQL or performance issue and delivers an action plan. Standard tunes up to three agreed SQL statements on one Oracle instance. Premium covers up to five agreed SQL statements on one instance, including a coordinated tuning plan, agreed changes and validation.
You receive findings, change recommendations and handover notes. Production implementation requires an agreed backup, rollback and maintenance plan.
Please message me with the Oracle version, edition, query scope and available execution plans before ordering. Use of optional Oracle packs depends on your entitlements. Major migrations, HA projects and recovery work require a separate scope.
Database type:
Relational database
FAQ
What should I send for a SQL tuning review?
Send the Oracle version and edition, sanitized SQL, representative bind patterns, relevant table/index definitions, approximate row counts and execution plans. Existing before/after or runtime evidence is useful if available.
Are AWR, ASH or tuning packs required?
We agree a diagnostic approach based on the evidence available and the features your environment is entitled to use. I do not assume you own optional packs. Oracle software and licensing costs are not included in the service.
Will every slow query be solved by adding an index?
The diagnosis may point to SQL structure, cardinality estimates, data distribution, waits or application access patterns. I propose changes based on evidence and consider their impact on writes and other queries.
How are results validated?
We check query correctness and use representative inputs and suitable runtime evidence to evaluate changes. Results depend on the workload, data and access available; no fixed speedup is promised.
Are Oracle migrations and recovery included?
These packages focus on SQL and performance work. Migration, high availability, backup/recovery implementation and ongoing operations require a separately agreed scope and quote.
