Performance tuning requires a different, although related, method to the initial configuration of a system. Configuring a system involves allocating resources in an ordered manner so that the initial system configuration is functional.
Database Performance Tuning is maximized by finding the most significant bottleneck/s and addressing them with appropriate changes to reduce or eliminate the performance degradation. In most cases, Database tuning is in response to performance issues not a proactive action. However, there are best practices provided by Techova that can set you up for success from day 1.
Performance tuning may involve database optimization, indexing to tune your SQL database, and making other efforts to make data retrieval easier and query responses more timely and comprehensive. Here are three reasons why performance turning needs to be done consistently.
The more data you have, the slower data retrieval can be if your database is not optimized. Performance tuning lets you build indexes and eliminate problems which could cause your data retrieval to be slower than it has to be. Nothing frustrates your team of employees more than waiting for the database to conduct its searches. That will lead to more frustration reaching your customers or clients.
Coding loops can have the effect of hammering your database. When there is an SQL query inside of a loop, the query is run multiple times. If that is removed the query out of the loop, on the other hand, a performance boost can occur because the query is run just once instead of many iterations.
We can improve your query performance by avoiding correlated subqueries, by avoiding the overuse of select (and instead declaring each column individually) and by making queries simpler by avoiding temporary tables. These are just a few of the many different ways the performance of queries can be improved.