What Does An SQL Developer Do?

Introduction

In this article we are going to discuss what SQL developers do. What are their responsibilities as SQL developers, and what are the main skills to get a job as a SQL developer. Before this, we will learn about SQL.

SQL stands for Structured Query Language. In SQL databases, the data is stored in the form of tables. The table contains columns and rows. To retrieve or get the data, we use queries. SQL is a relational database. SQL commands are used to insert data into the tables, and we can delete the data from the tables, alter the table, and update the table.

SQL is one of the popular database languages. SQL is simple in syntax. It can be used across platforms along with other database systems.

 Whether you’re running a small organization/start-up or a big business, you need to deal with lots of data. Based on the organization, your data will be increasing. Storing the data and securing the data play an important role in the organization. You need to store the data in databases like SQL, MySQL, etc. Here, the SQL developer role is important for an organization.

Do check out our Free Course on SQL Interview Questions at Great Learning Academy.

What is the database?

A database is a collection of information that makes it easy to view, organize, and access. It stores huge amounts of data. Using the queries, we can retrieve what information we need to process. A database contains tables, graphs, and columns to display data.

Also Read : 140+ SQL Interview Questions and Answers you must Prepare in 2021

Now, we will focus on the SQL developer role.

Being an SQL developer means:

• You’re responsible for designing database tables and structures.
• Create views, stored procedures, and functions.
• Database triggers to be created for automation.
• Writing moderate to complex queries for integration with other applications.
• Responsible for data quality.
• Maintain Data security.

As a SQL Developer, you should know these important commands.

1. DML: Data Manipulation Language.
2. DDL: Data Definition Language.
3. DCL: Data Control Language.

First, DML (Data Manipulation Language) commands are used for editing, inserting, or deleting the data.

Second, DDL (Data Definition Language) commands are used to create, alter, drop and truncate the table.

The last one is DCL (Data Control Language): these commands are used to Grant, Revoke the database. 

Grant:  This command gives permission to access the database to users.

Revoke This command is used to withdraw the permission to access the databases to users given by the Grant command.

SQL TCL Commands:(Transaction control language): 

• COMMIT: it will commit the running transaction.
• ROLLBACK: this command rolls back the current transaction.
• SAVEPOINT: if you set a save point, it will resume.
• SET TRANSACTION: it will specify the characteristics of the transaction.

Responsibility Of An SQL Developer

• SQL developers are responsible for creating, developing, and maintaining SQL databases. 
• They are also responsible for the performance and security-related issues.
• As SQL developers, they are tasked with creating database tables, structures and schemas, and dictionaries. 
• They create and implement these databases based on the requirements of the end-user. 
• SQL developers also create SQL queries that integrate with other applications. 
• Based on the requirement of the application, they have to create the triggers, scripts, and procedures.
• They are also responsible for testing the databases and fixing the bugs in them. 
• They have to fix those bug issues to increase the performance of the database.
• SQL developer jobs involve providing authorization for the databases, providing memory management to the systems, and handling the database backup, recovery, and upgrade.

Here some of the examples of responsibilities are given that an SQL developer typically performs.

1. Their job involves coordinating with DBA in creating and managing tables, indexes and database links and privileges.
2. SQL developers work with dynamic T-SQL queries, DML, DDL and DCL commands to manage and update user permissions.
3. They use subversion tools, SVN versions, to manage various versions of the procedures and functions for the applications.
4. SQL developers are mainly responsible for the performance improvement. They have to improve the performance by reducing the response time of the queries by rewriting and tuning the statements and embedding them in php.
5. SQL developers also manage and customize CRM implementation.
6. They are responsible to manage backup and restore the process and manage permissions to the users
7. They retrieve the data from the stored procedures and import to the text files.
8. They use HTML,CSS,Javascript to develop interactive UI user interface. 
9. SQL developers design reports, apply drill down, drill-through sub reports.
10. They have to support web-based java applications that are reliant upon XML documents.
11. They have to work on tools like SVN and Jira.
12. They have to understand the full agile scrum environment and Git.

SQL Developer Overview

Nowadays, data is increasing rapidly. Storing the data and analyzing the data are also important to get meaningful insights and make future decisions. 

In the coming future, SQL developers’ jobs are also in demand. There is significant growth in the job market. By the year 2028, there will be almost 2,84,000 jobs available.

Their average earnings are about $38.8 an hour. SQL developer annual salary ranges from $69,000 to $ 90,000. If you’re a SQL developer, you might become interested in the future of these job types: database developer/database administrator, business intelligence developer, Datawarehouse developer, INFORMATICA developer, data analyst.

SALARY RANGES:

The average salary is $69000. The salary range also depends on the experience level and which type of organization you are working for. The junior or entry-level SQL developer can get up to $50,000 per annum. 

As a mid-level SQL developer, you can get about $74,000. For a senior-level SQL developer, it ranges up to $1,03,000.

level	salary
Entry	$50,000
Mid -level	$74,000
Senior	$1,03,000

As a freelancer, the average salary is $90 /hr. An experienced freelancer can get more hourly pay compared to mid-level SQL developers.

Skills Required To Become A SQL Developer

The fundamental skill required to become a SQL developer is being proficient in SQL. The developer is able to create and manage the databases and create complex queries.

SQL developers also need some experience in integrated development environments like Oracle SQL Developer, MYSQL, or MYSQL Server.

The need to have some familiarity with the programming language is also important. Along with SQL, they need to have some basic idea on C, C++, C#, Python, Java, JavaScript, and PHP are an added advantage.

Having knowledge of cloud platforms like Microsoft Azure and Amazon AWS and some basic knowledge on Big Data, Hadoop, and Hive.

In addition to this, having some operating system knowledge like UNIX and Linux.

Having a basic understanding of the data visualization tools/business intelligence tools like Tableau and Microsoft Power BI also helps to become a good data analyst.

Having the capability to understand complex problems and communicate and collaborate with other team members is also very important. Communication skills also play an important role in becoming a good team player and understanding the problem and solving those issues effectively.

• Proficiency in SQL.
• Problem solving skills.
• Knowledge in operating systems like UNIX.
• Experience in one programming language.
• Basic understanding of front-end languages like HTML, CSS, JAVA script.
• Experience in an integrated development environment.
• Experience in writing complex queries.
• Having knowledge on .NET framework.
• Some knowledge on cloud services like Azure, AWS.

SQL Developer Career Path

As you move along in your career, you may get more responsibilities. In SQL developer career map, they could start out with a developer, later progress to a title such as consultant and finally end up with the information technology operations manager.

• SQL developer
• Consultant
• Information technology operations manager

EDUCATION/QUALIFICATION:

There are various educational requirements to become a SQL developer. A bachelor’s degree in computer science or a bachelor’s degree in electronics or information technology is also preferred.  Based on the statistics, almost 70% of the SQL developers hold bachelor’s degrees, and 20% of the SQL developers hold a master’s degree.

Nowadays, passion is important to learn anything. If you’re interested in Data warehouse concepts and want to analyze the data, then you can learn through online classes. Some basic computer knowledge is enough to learn, but if you want to get a job, you need to be proficient in that technology.

• 
  Bachelor’s degree, 70%
• Master’s degree, 20%
• Associate degree, 4%
• Diploma degree, 2%
• Other Degrees, 4%

 Based on the resume data most of the computer science stream students are SQL developers. 

• 33% computer science
• 11% Electronic engineering
• 10% Information technology
• 7% computer engineering
•  Other majors, 39%

 certification and training can also boost your chances to get a job as a SQL developer. You can work as a freelancer. As a freelancer the average pay is $90/hr.

Conclusion

Present digitalization is everywhere. Digitalization gives lots of data. To store and manage secure data is also very important. To store huge amounts of data, we need databases. To maintain and manage those databases, we need database developers. Choosing a SQL developer career is a better choice for growth in big industries. Here SQL developers are required to secure and manage the data. In the coming future, there will be high demand for SQL developers.

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