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The DECIMAL data type in MySQL is used to store fixed-point numbers, also known as decimal numbers or exact numeric values. It is commonly employed to store monetary and financial data where precision is crucial. Unlike the FLOAT and DOUBLE data types, which are approximate numeric types, DECIMAL provides exact numeric storage with a fixed […]
The MySQL INT data type is a fundamental numeric data type used to store whole numbers (integers). It stands for integer and is commonly employed to represent values without decimal points. The INT data type in MySQL has a fixed size and supports both positive and negative integers. INT introduction Here are some key characteristics […]
MySQL supports a variety of data types that allow you to store different types of information in your databases. These data types are crucial for defining the structure of your tables and ensuring the integrity of your data. MySQL data types are an essential aspect of database design, defining the nature of the data that […]
In MySQL, the IF-THEN-ELSE statement is used to control the flow of a program or a query based on a specified condition. It is commonly employed within stored procedures, triggers, and functions to perform conditional logic. Syntax The basic syntax of the IF-THEN-ELSE statement in MySQL is as follows: IF condition THEN — statements to […]
In MySQL, the CASE statement is a powerful conditional expression that allows you to perform conditional logic within SQL queries. It provides a way to perform different actions based on different conditions, similar to the IF-THEN-ELSE structure in other programming languages. The CASE statement can be used in various SQL clauses, including SELECT, WHERE, ORDER […]
MySQL joins are essential operations in relational databases that allow you to combine rows from two or more tables based on related columns. Joins enable you to retrieve data from multiple tables in a single query, providing a way to establish connections and relationships between different sets of information. There are several types of joins […]
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