Tutorial Series: Database

A database is a collection of data that is organized in a way that allows it to be easily accessed, managed, and updated. Databases are used in a wide range of applications, from small personal projects to large enterprise systems.

A database typically consists of one or more tables, which are composed of rows and columns. Each row in a table represents a single record, and each column represents a specific attribute of that record. For example, in a database of customer information, a table might have columns for first name, last name, email address, and phone number.

Databases can be managed using a database management system (DBMS), which provides tools for creating, updating, and querying data. Some popular DBMS systems include MySQL, Oracle, Microsoft SQL Server, and PostgreSQL.

Databases are used in many different applications, such as e-commerce websites, inventory management systems, and social media platforms. They are an essential tool for storing and managing large amounts of data and are often used in conjunction with other technologies such as web servers and programming languages to create robust and scalable applications.

SQL: Introduction To Database

A database is a collection of organized and structured data that is stored in a computer system and can be accessed and manipulated by software programs. It is designed...

SQL: What is Structured Query Language (SQL)

Structured Query Language (SQL) is a programming language designed for managing and manipulating data in relational databases. SQL allows users to create, modify,...

SQL: What is A Relational Database Management System

A Relational Database Management System (RDBMS) is a type of software that is used to manage relational databases. It provides a framework for creating, storing,...

SQL: The Basic Syntax of SQL (Part I)

The basic syntax of SQL (Structured Query Language) involves the use of a set of keywords and commands to interact with a relational database. The primary commands...

SQL: The Basic Syntax of SQL (Part II)

SQL BETWEEN Clause The BETWEEN clause is used in SQL to specify a range of values for a SELECT, INSERT, UPDATE, or DELETE statement. It allows you to specify a...

SQL: The Basic Syntax of SQL (Part III)

SQL DROP TABLE Statement The DROP TABLE statement is used in SQL to delete a table from a database. It permanently removes the table and all of its data, and it...

SQL: The Basic Syntax of SQL (Part IV)

SQL DELETE Statement The DELETE statement is used in SQL to delete existing rows from a table. It allows you to specify the rows to delete using a WHERE clause,...

SQL: The Basic Data Types for SQL

Data types in SQL specify the type of data that a particular column or variable can hold in a database table. The most common data types in SQL include integer,...

SQL: The Essential Operators in SQL

In Structured Query Language (SQL), Operators are used to performing operations on one or more values to produce a result. They are used in conjunction with SELECT,...

SQL: How to Use SQL Expressions

SQL expressions are combinations of one or more values, operators, and SQL functions that evaluate a single value. Expressions can be used in various SQL statements,...

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