SQL works with relational databases, or databases that store related data points in tables.Ī benefit of learning a query language is that it gives you complete control over your data. One of the most popular and useful languages to learn is Microsoft's Structured Query Language (SQL). If you're planning to perform many queries or work extensively with data, it may be helpful to learn a language. One of the most common ways to perform a database query is using a query language. There are several methods you can use to perform database queries: Relational database query language Related: How To Become a Data Analyst Ways to perform a database query Here are some additional actions querying can help you perform:įiltering data according to specific criteria This information can help the company learn more about its customers and make informed business decisions.

For example, a data analyst might perform a query to find the average ages of a company's customers. By querying databases, businesses can analyze data to form helpful conclusions. In these instances, queries can help you retrieve and compile information from the assorted tables. Sometimes multiple tables house the various pieces of data you want to access. Databases often comprise many tables, or collections of related data. A database query is a way to retrieve a specific subset of data from within a database.