SQL
SQL is a database management system that allows for the management, deletion, activation, and operation of data.
SQL is known as a programming language by most people, but this is not correct. Based on ANSI standards, it can be said that SQL is fully a sub-language that can be used in the database. Therefore, only operations are performed on the database with SQL.
Millions of data are produced and stored every minute. These raw data cannot make sense to us because they have no stories to tell. SQL emerges at this point. Using SQL, the data stored in the computer environment can quickly be modified or deleted. Especially if there is too much data written at the same time, these data are easily managed with SQL.
Data analysis or data science is undoubtedly the most important language to find a job in the field. Regularily used by database administrators, developers who also write data files and data analysts who set up analytical queries. Most tech giants like Facebook, Instagram, WhatsApp use SQL in data operations.
What Does SQL Do?
We discussed that SQL is a database management system. Then what does SQL do? There are many operations you can do with SQL. The operations you can perform with the SQL database management system can be listed as follows:
- You can get data by running queries in the database with SQL, records can be added to the database, database records can be updated or deleted.
- It allows users to quickly define data. Querying and searching can be done among an unlimited number of data.
- Who can access the database can be set, security measures can be taken.
Where is SQL Used?
Now that we understand what SQL is, let's examine what SQL can do. The main use of SQL is databases. For relational databases, it is a standard language. Some databases that perform querying operations using the SQL system are as follows:
- MySQL
- Mssql
- Microsoft SQL Server
- Oracle
- IBM Database 2 (IBM DB2)
- Sybase
- IBM Informix
- Progress
- PostgreSQL
- Access
SQL can be used in various sectors and fields. The short list to the question of where SQL is used is as follows:
- Personal address books
- Phone book
- E-commerce sites
- Banking systems
- School systems
- Hospital systems
- Library systems
- Payment and debt systems
- Product sale and order systems
- Libraries
What are the Advantages of SQL?
SQL is a popular structured programming language used to process databases. It performs various operations such as extracting, modifying, and storing data. Despite disadvantages such as high operating cost and difficult interface, it is still one of the most used database management systems today. The advantages that make SQL so popular include:
- No programming skill required: No programming skill is necessary to use SQL. Thanks to its user-friendly feature, database management can easily be done with the help of keywords like 'insert', 'select' and 'update'.
- It's fast: Businesses need a database management system to manage their excessively complex data. It is critical to be able to perform data operations quickly, as there is so much data to manage. With SQL, addition, deletion, and modification operations can be made quickly on thousands of complex data at once. This feature allows it to maintain its popularity.
- It has a standardized language: It is in accordance with the standards of ISO and ANSI. It uses English as the standard language. This allows users to learn SQL easily.
SQL Training and SQL Classes
Contrary to popular belief, learning SQL is not that difficult. Of course, it takes some time to fully master the system. For beginners, learning SQL is easier than learning programming languages like Java, C++, PHP, or C#.
The first thing you need to do is planning, then find a suitable training for yourself. There are many different online resources on the internet to learn SQL. Even if you have less programming experience, you can join many SQL courses online and develop yourself in this field.
SQL Career Opportunities
Companies hire database experts to organize their data and create a database. As SQL allows managing an unlimited number of data very simply, many companies have begun using the SQL system. This has increased the demand for those working in this field. The career opportunities for SQL are as follows:
- Data scientists who deal with millions of data, ensure the correct storage of data, try to derive value from data, and are experts in this field must have SQL skills.
- SQL is a critical tool for business analysts, who undertake activities to evaluate corporate business processes, reveal areas for improvement, and generate solutions.
- It is expected that data analysts, who collect and classify existing data within the company, analyze it using certain methods and allow businesses to make more accurate decisions with the information obtained, to have experience in SQL.
In conclusion, companies now have more data than ever. Companies that want to use these data in their hands to work more efficiently, and to make a better decision-making process possible, increasingly need database management system experts day by day. Starting to learn SQL today will be an important point on your career journey. Also, if you want to get information about MySQL, which is often confused with SQL, you can read this article
