Introduction to SQL

Data types define the kind of data that can be stored in a database column. They prescribe the format in which data is represented, enabling efficient storage, retrieval, and manipulation. Each data type has specific properties and constraints, such as size, range, and behavior, which influence how data is stored and processed. SQL offers a plethora of data types tailored to accommodate diverse data requirements Numeric Data Types: Numeric data types encompass integers, floating-point numbers, and fixed-point numbers. They include INT, BIGINT, FLOAT, and DECIMAL, among others, each with varying precision and range. Character String Data Types: Character string data types store text values of variable or fixed length. Examples include CHAR, VARCHAR, and TEXT, which differ in their storage mechanism and maximum length. Date and Time Data Types: Date and time data types handle temporal information, such as dates, times, and timestamps. Common types include DATE, TIME, DATETIME, and TIMEST...