A Basic SQL Developer is responsible for managing and manipulating databases to meet the needs of their organization or client. They primarily use Structured Query Language (SQL) to perform these tasks. Here are the detailed responsibilities: . Database Design: SQL developers design and create databases according to the requirements of the project or organization. This includes defining tables, creating indexes, and setting up relationships or constraints between tables. . Writing SQL Queries: The main task of an SQL developer is to write SQL queries for manipulation of the structured data of the databases. They write SQL statements to extract and filter data, and create functions, scripts, stored procedures, and triggers for business needs. . Data Manipulation: SQL developers are responsible for inserting, updating, and deleting data within a database. They also retrieve data from databases by writing appropriate SQL code. . Database Optimization: They also work on optimizing the performance of the database and SQL queries. They use various techniques to enhance the speed and efficiency of databases. . Data Migration: SQL developers may also be responsible for transferring data between different databases, or different servers, which involves writing complex SQL scripts. . Testing and Debugging: SQL developers test their SQL code to ensure it delivers the desired results. They also debug any issues in the SQL code. . Data Security: They might also be responsible for ensuring data integrity and security. This may involve setting up user permissions and roles, as well as taking measures to protect sensitive data. . Documentation: They are expected to document their work so that others can understand the database structure, the queries used, and any other important details. . Collaboration: SQL developers often work with other team members, such as software developers, data analysts, and data scientists, to understand their data needs and to design and manage databases accordingly. . Troubleshooting: They troubleshoot and solve database issues and provide solutions to restore normal functions. . Keeping Up-to-Date: SQL developers need to keep up with the latest developments in technology and new ways of managing databases. This might include learning new SQL variants or tools that can help in their work.