data types

In a SQL database, a table is a fundamental component of a database system. This article will guide you on how to create a table using the CREATE TABLE command in SQL. When creating a table, you need to specify the column names and their respective data types. SQL provides various data types, but the most commonly used ones include: CHAR: fixed-length character string TEXT: variable-length character string VARCHAR: variable-length character string with a maximum length specified DATE: date value TIME: time value DATETIME: combination of date and time TIMESTAMP: date and time, typically used for recording modification times There are also numeric data types available in SQL, such as:...

In this blog post, we will dive into the typedef keyword in C and understand its usage and benefits. The typedef keyword allows C developers to define new types based on existing ones. By using this keyword, we can create more descriptive and meaningful names for our data types. Let’s start with the syntax of typedef: typedef existingtype NEWTYPE; The new type we define is typically written in uppercase letters to make it easily distinguishable as a custom type....

Learn how to convert data types in JavaScript In JavaScript, although it is a loosely typed language, there may be instances where you need to convert values from one type to another. JavaScript has these primitive types: Number String Boolean Symbol and the object type: Object (plus null and undefined, but there’s no point in casting from/to them) Let’s explore different techniques for converting from one type to another. We’ll cover the most common scenarios....

Python, a versatile programming language, provides a range of built-in types to handle different kinds of data. In this blog, we will explore the basics of Python data types and how to work with them effectively. String Strings are sequences of characters enclosed in quotes (’’ or “”). To check if a variable is of the string data type, you can use the type() function or the isinstance() function: name = "Roger" type(name) == str # True isinstance(name, str) # True Numbers Python supports two types of numbers: integers (int) and floating-point numbers (float)....