Introduction to query optimization
Query optimization is the process of improving the performance of a SQL query by reducing the time it takes to execute and retrieve the data. The goal of query optimization is to make the query run faster, consume fewer resources, and return the desired results with minimum overhead. Query optimization becomes critical when dealing with large amounts of data and when the data needs to be processed quickly:
Figure 10.1 – Query optimization
In this section, we’ll explain the importance of query optimization by mentioning the following points:
- Scalability: As the data grows, the queries may take longer to run, leading to slower performance and longer wait times for the users. Query optimization helps in ensuring that the queries scale well and continue to perform efficiently as the data grows.
- Resource utilization: Query optimization helps in reducing the resources required to run the query. This...
