What is SQL?

Structured Query Language (SQL) is a programming language used when working with databases. Given that businesses always collect a lot of data, if they want to work with it successfully, they should be familiar with SQL and know how to use it properly.

Importance of SQL in Business

SQL programs are used in businesses and other organizations to access information in their databases and to manipulate it. SQL also enables businesses to create and change data tables. What is SQL used for? To find the answers, let’s figure out what databases are first. According to Microsoft, databases are tools that help collect information and organize it.

Usually, companies start to create databases in spreadsheets and word processing programs. However, as databases grow, they get transferred to database management systems. Users need to retrieve data from such databases and to control it. That’s where SQL comes into play. This language is used to insert data into database tables, delete it, and to modify the tables. SQL can also be used to modify the overall structure of a database.

Although SQL is a relatively simple programming language, it’s nevertheless powerful. It’s rather easy to work with, but setting it up can be a time-consuming process. There is a set of seven commands which enable users to manipulate the data. For instance, SQL INSERT is used to add new data, SQL UPDATE modifies the existing records, and SQL SELECT helps retrieve data from tables.

The whole system is much simpler than when dealing with many other programming languages. However, these commands can be used in different ways so things can get a little more complicated. Anyway, compared to other programming languages, SQL is one of the least code-dependent languages.

Given that more and more businesses rely on big data, employees with SQL skills become especially valuable. The use of SQL goes beyond direct interaction with data. Many programs need to access databases to function properly, and SQL enables them to do it. SQL is compatible with almost all high-level languages. Here are some of the main advantages of SQL for businesses.

Database Management

Obviously, the main advantage of SQL is that it was created for database management. No matter how big your database is, SQL can help you find the necessary information in it and to change it. SQL can work with complex queries, enabling you to set various criteria to search for specific information. For instance, if you have a database of employee salaries, you can see how much money has been paid to the marketing department only.

Regional Database Management

Regional databases are more complex than regular databases because they contain lots of interrelated information. Quite often, there is a primary key that is used to establish a connection between different types of information. The structure of regional databases includes numerous tables where a certain row is related to other tables. For instance, such a row might contain an ID value. SQL and primary keys enable you to retrieve information from multiple tables at once and to see it presented in an easy to comprehend way.

For example, you may have a database of students and classes. One table will contain information on students, while another one will contain classes. In this case, you can use SQL to combine data entries from both tables to determine what classes a particular student attends and what teacher they have.

Big Companies

Companies that use SQL use it for different purposes. It’s popular among both small and big companies. For instance, Microsoft is one of the biggest companies that use SQL all the time. For instance, it’s used in ActiveX Data Objects, SQL Server, and Open Database Connectivity. Many other well-known development companies also use SQL integration to simplify database management.

MySQL

Quite often, companies choose not to write an SQL for their own databases but to use complete database management systems that already have SQL built-in. MySQL is one of the most popular database management systems. Oracle was the creator. The solution is open source so everyone can use it for free.

Should You Use SQL?

Many blogs rely on MySQL databases combined with web scripting languages, such as Python, PHP, or Perl. This way, users can create web pages that access information from databases. Such pages are often called dynamic because their content is generated as they load. Websites that are based on dynamic pages are often called database-driven websites. Great examples of brands that use MySQL for websites are Adobe, Google, and Facebook.

SQL offers numerous advantages for businesses, and it’s an integral part of the IT world. SQL is easy to use, and experienced programmers can set it up quickly. Another great thing about SQL is that it’s easy to maintain. Database management is extremely important for many businesses, and SQL offers an easy and convenient way to do it. Thanks to SQL, business databases can be easily organized and protected from accidental manipulations. SQL is efficient and quick so it can help your company save a lot of money in the long run.

About the author 

Frank Hamilton

Frank Hamilton has been working as an editor at essay review service Online Writers Rating and an author at Best Writers Online. He is a professional writing expert in such topics as blogging, digital marketing and self-education. He also loves traveling and speaks Spanish, French, German and English.

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