Frequently Asked Questions About SQL

SQL (Structured Query Language) is a programming language that allows operations in relational database management systems (RDBMS). Operations such as creating a database, creating a table, adding, updating, deleting data and querying data are performed through SQL in database management systems.

SQL is a very powerful programming language that allows operating with data. Using SQL, we can query, edit, clean, analyze and visualize the data in the database by turning it into a report.

SQL is a program that is actively used in every field where data exists. Data analysts, software developers and business analysts are the people who use SQL most frequently. Although these professions use the SQL program more frequently, SQL is an important program for every professional group. Since SQL allows the correct use of data, anyone who wants to advance in their profession and gain an advantage can come to the fore in their career by learning SQL.

SQL is an easy language to learn. Basic SQL-related queries can be learned in as little as 1-2 weeks. It takes an average of 3 months to use SQL at a more advanced level. Although SQL is easy to learn, it is a program that is open to development and has no limits. For this reason, just being able to use SQL will not be enough. In order to progress in the SQL program, we must be open to innovations, follow the developments and of course always seek the better.

Learning SQL is easy. Basic SQL commands can be learned easily in a short time. Likewise, medium difficulty SQL commands can be learned easily with practice. In order to use the SQL program at a professional level, innovations in the field of SQL must be followed and adapted to these innovations.

SELECT command: This command allows us to access the data in the database. For detailed information about the Select command, you can review my article titled What is SQL SELECT Command?

INSERT command:

UPDATE command:

DELETE command:

DISTINCT command:

ORDER BY command:

JOIN command:

GROUP BY command:

HAVING command:

.