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11 Highly Effective Database Performance Tuning Techniques

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The business world runs on different types of data. To ensure that the same data is accessible for all beneficiaries, it should run effectively and always be available. 

However, in real life, ensuring the availability and efficiency of databases can take time and effort to ensure optimal database performance. 

There are several reasons why databases don’t do well. Now, this is where performance tuning comes into play. 

We also have a guide for WordPress Database optmizations.

Refining Your Approach to Database Performance Tuning

How you approach database performance tuning depends on the performance issues you’re trying to resolve. Keep in mind there isn’t a one size fits all solution, but plenty of best practices will help enhance database efficiency and speed. 

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So, if you’re starting with database performance tuning or you have your own database management support team to tune it for you, you need to know what you’re dealing with before wading in too deeply. 

In this post, we’ll walk you through highly effective database performance tuning techniques: 

1. Make minor adjustments to queries

There are plenty of ways a query can be tuned. However, one of the most vital is to take your time with the process. You can start with basic arrangements and then work your way up. You can adjust indexes or place a simple skip list around the query. 

You can also run a database command and look for high-selectivity queries. Then, make changes to these queries by placing indexes and changing your query plan. Making these simple changes can massively affect performance. Check out the practical ways to maximize your website for lead generation.

2. Statistics should be up to date

Statistics can be used effectively to generate the right execution plans. This is for performance tuning.

There are plenty of great performance tuning tools. However, if you’re using outdated statistics, these plans couldn’t be optimized to meet present issues. 

3. Don’t use the leading wildcards

Wildcard parameters can force a full table scan even if indexed fields are inside given tables. 

If database engines scan every row in a table to look for a specific entry, then the delivery speed can significantly decrease. Parallel queries may also suffer from this scanning of the whole data in the memory. 

This may result in optimum CPU utilization and not letting other queries run in the memory. 

4. Use constraints

Constraints are one of the most effective ways to speed up queries since it allows SQL optimizer to develop a better execution plan. However, the enhanced performance also comes at the cost of the data since it needs more memory. 

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Depending on your objectives, the enhanced query speed will be well worth it, but being aware of the price is vital. 

5. Increase memory

In data from Statista, 32% of B2B businesses expect to boost their spending on database management. 

One way that DBAs might handle SQL performance tuning issues is to enhance the memory allocation of the current databases. SQL databases have plenty of memory, improve efficiency, and performance often follows. 

6. Overhaul CPU

If you’re regularly experiencing database and operation strain, you might want to invest in a more robust CPU. 

Businesses that often use obsolete hardware and other systems experience database performance issues that can affect their ROI. 

7. Improve indexes

Aside from queries, another essential element of a database is the index. If done right, indexing enhances database performance and optimizes the query execution duration. 

In the same way, it helps build a data structure that lets you optimize your data and make it easy to find information. Because it’s a lot easier to find data, indexing boosts the efficiency of data retrieval and speeds up the whole process. This saves you and the system a lot of time and effort. 

8. Defragment data

One of the best approaches to improving database performance is data defragmentation. Over time, so much data is constantly being written and deleted in the database. 

As a result, data can become defragmented. It slows down the data retrieval process since it affects the query’s ability to find the information it’s searching for. 

When you defragment data, you allow that relevant data to be grouped together, and then you erase index page issues. As a result, I/O-related operations will run so much quicker. 

9. Review the actual execution plan, not just the estimated plan

The estimated execution plan can be helpful if you’re writing queries since it previews how the plan will run. However, it could be blind to parameter data types which would be wrong. 

If you want to get the best results in performance tuning, it helps that you review the actual execution plan first. This is because the existing plan will use accurate statistics. 

10. Adjust queries, make one small change at a time

Many too many changes at once can be detrimental in the long run. A more efficient approach is to make changes with the most expensive operations and then work from there. 

11. Review access

Once you know that your database hardware works well, the next thing that you need to do is to review your database access. It includes which applications are accessing your database. 

Suppose one of the services and applications suffers from poor database performance. In that case, you mustn’t immediately jump to conclusions about the service or application responsible for it. 

It’s also possible that a single client might be experiencing poor performance. However, there’s also a possibility that the entire database is having issues. Thus, you need to dig into who has access to the database and whether or not it’s just a single service having a problem. 

That’s where the right database management support comes in. You can then drill down into its metrics so that you know the root cause. 

Over to You

Performance tuning is one of the best ways to enhance database performance. When you focus on cleaning up indexes and optimizing queries, a huge chunk of these performance issues can be resolved. 

Regular database performance tuning ensures high availability and quicker response times, which is an absolute must-have for today’s end users.

Editorial Team

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