SQL

SQL (pronounced interchangeably as “sequel” and “S-Q-L” in the industry) is a query language that allows coders to find, change or otherwise manipulate information in relational databases. SQL’s utility and easy to learn syntax have long cemented it as a standard language for back end developers and data scientists. The query language can also be used in tandem with scripting languages such as PHP to create dynamic web pages.

SQL (Structured Query Language) is used to perform operations on the records stored in the database, such as updating records, inserting records, deleting records, creating and modifying database tables, views, etc.SQL is not a database system, but it is a query language.SQL is a standard database language used to access and manipulate data in databases. SQL stands for Structured Query Language. SQL was developed by IBM Computer Scientists in the 1970s. By executing queries SQL can create, update, delete, and retrieve data in databases like MySQL, Oracle, PostgreSQL, etc. Overall SQL is a query language that communicates with databases.

1. • Designing databases and ensuring their stability, reliability, and performance.
   • Creating program views, functions and stored procedures
   • Design, create, and implement database systems based on the end user’s requirements.
   • Writing optimized SQL queries for integration with other applications
   • Impove application’s performances.
   • Developing scripts, procedures and triggers for application development
   • Prepare documentations for database applications.
   • Memory management for database systems.
   • Maintaining data quality and backups and overseeing database security
   • Develop database schemas, tables and dictionaries.
   • Ensure the data quality and integrity in databases.
   • Building databases and validating their stability and efficiency
   • Fix any issues related to database performance and provide corrective measures.