What is difference between PL/SQL and SQL and MySQL?

As a registered tutor on UrbanPro.com specializing in PL/SQL training, I'm delighted to shed light on the key differences between PL/SQL, SQL, and MySQL.

PL/SQL (Procedural Language/Structured Query Language):

• PL/SQL is a procedural language designed for Oracle Database.
• It extends SQL by including procedural elements, such as conditions and loops, allowing for more complex and powerful programming.
• PL/SQL is used for developing stored procedures, functions, triggers, and more within Oracle databases.
• It integrates seamlessly with SQL and offers enhanced capabilities for database development.

SQL (Structured Query Language):

• SQL is a standard language for managing relational databases.
• It is used to perform tasks such as querying data, updating data, and defining and modifying the structure of a database.
• SQL is declarative, meaning you specify what you want to achieve rather than how to achieve it.
• It doesn't support procedural programming elements like loops and conditions, which is where PL/SQL comes in to complement SQL.

MySQL:

• MySQL is a relational database management system (RDBMS) that uses SQL as its query language.
• While SQL is a language standard, MySQL is a specific implementation of an RDBMS that follows that standard.
• MySQL supports the SQL language for managing and manipulating data, but it also has its procedural language for stored procedures and functions called MySQL Stored Procedure Language (MySQL SPL).

Key Differences:

• Purpose:

  • PL/SQL is primarily used for procedural programming within Oracle databases.
  • SQL is a standard language for managing relational databases and is used for data manipulation and definition tasks.
  • MySQL is a specific implementation of an RDBMS that uses SQL for data operations and has its procedural language for stored procedures.

• Functionality:

  • PL/SQL extends SQL by adding procedural constructs, making it suitable for more complex programming tasks.
  • SQL focuses on querying and manipulating data in a relational database.
  • MySQL combines SQL for data operations with its own procedural language for stored procedures.

• Usage:

  • PL/SQL is specific to Oracle databases.
  • SQL is a standard language used across various database systems.
  • MySQL is a specific RDBMS that uses SQL for data operations and introduces its procedural language.

Conclusion:

In summary, while SQL is a standard language for managing relational databases, PL/SQL is Oracle's extension of SQL for procedural programming within Oracle databases. MySQL, on the other hand, is a specific RDBMS that utilizes SQL for data operations and introduces its procedural language. Depending on your database system and programming requirements, you may choose the one that best fits your needs. If you are interested in in-depth understanding and practical application, consider enrolling in PL/SQL training, and for convenient learning, explore the options for the best online coaching for PL/SQL training.