Custom Database Tuning Checklist

Utilizing a proactive approach to the tuning process helps companies optimize database workload, increase user performance and minimize maintenance costs. This custom database tuning checklist provides a series of tips and suggestions to assist IT staff in tuning the custom database of their company. We also recommend to use CentriQS Configurator customization solution for creating your company custom database.

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Benefits of tuning the database

• Creating a consistent environment across the entire enterprise
• Using a standardized approach to tuning and customizing the database
• Preventing conflicts between different technical groups
• Obtaining reproducible and successful results provided by database tuning best practices
• Easier diagnosis of problems relating to database tuning and setup
• Reduction of the overall costs of managing and tuning the database

Optimize database performance

• Review database design (the logical database schema and the physical attributes) for errors
• Consider using SQL packages to increase the performance of your custom database
• Note that in case you use improper or poorly written SQL statements in database design, the performance could be considerably slowed down
• Consider using hints and bind variables whenever necessary to optimize database workload
• Index database tables to allow the server to look up rows more quickly
• Avoid using temp tables as much as you can
• Control the number of "read" and "write" queries and the total number of calls to your server
• Look for duplicate calls and remove them
• Tune the server hardware for better performance
• Reduce as many round trips as possible

Minimize physical input/output

• Size memory structures to allow sufficient information to be stored in memory
• Do proper memory distribution to ensure that paging and swapping do not occur at the operating system level
• Make sure that the segments of your custom database are not written to the system tablespace but to a non-system default tablespace
• Always assign a non-system temporary tablespace for each database user
• Minimize excessive physical reads and writes to the data dictionary of your custom database
• Look at the background processes when the database is running and check for improvement opportunities

Improve IT effort

• Set specific and measurable tuning goals to your IT specialists
• Guide your IT staff to make database design fitting into the business structure of your company
• Consider providing proper training to all parties involved in database tuning and maintenance
• Foster the habit of profiling changes to the database before saving
• Keep log of all events causing delays and performance reduction.

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