Python Programming and SQL: 5 books in 1 - from Starter to Smarter. Master Hands-On Coding, Break Career Barriers, and Unlock Expert Techniques with a Step-by-Step Method by Alan P. Cochran

Author:Alan P. Cochran [Cochran, Alan P.]
Language: eng
Format: epub
Published: 2024-01-17T00:00:00+00:00

Query Complexity: If your application involves complex queries and transactions, a relational database might be more suitable. For simpler queries and high-speed data retrieval, NoSQL databases can be advantageous.

The Role of SQL

SQL traces its roots back to the early 1970s when IBM researchers Donald D. Chamberlin and Raymond F. Boyce developed a language for managing and manipulating databases.

Initially known as SEQUEL (Structured English Query Language), it aimed to provide a user-friendly and English-like interface for interacting with databases.

In the subsequent years, SQL evolved as an industry standard, with contributions from various organizations and database vendors.

The American National Standards Institute (ANSI) and the International Organization for Standardization (ISO) have played pivotal roles in standardizing SQL, ensuring its widespread adoption and interoperability across diverse database management systems.

Essential Components of SQL

SQL is designed as a domain-specific language that facilitates the interaction with relational databases. Its syntax is characterized by a series of declarative statements that convey the desired operations on the database. Let's explore the essential components that form the building blocks of SQL.

Data Definition Language (DDL)

The Data Definition Language (DDL) in SQL is concerned with the definition and modification of database structures. Key DDL statements comprise:

CREATE: This statement creates database objects like tables, indexes, and views.

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