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“Oracle database is a relational database management system (RDBMS) from Oracle Corporation. It was created in 1977 by Lawrence Ellison and other engineers. It is one of the most popular relational database engines in the IT market for storing, organizing, and retrieving data. Oracle database was the first DB that designed for enterprise grid computing and data warehousing. "
“MySQL, the most popular Open Source SQL database management system, is developed, distributed, and supported by Oracle Corporation. MySQL databases are relational. The MySQL Database Server is very fast, reliable, scalable, and easy to use."
“SQL (pronounced “ess-que-el”) stands for Structured Query Language. SQL is used to communicate with a database.According to ANSI (American National Standards Institute), it is the standard language for relational database management systems. SQL statements are used to perform tasks such as update data on a database, or retrieve data from a database."
“PL/SQL is a block structured language that enables developers to combine the power of SQL with procedural statements.All the statements of a block are passed to oracle engine all at once which increases processing speed and decreases the traffic."