Where, Group By, Order By Clause In MySQL With Examples | MySQL Tutorial
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- เผยแพร่เมื่อ 4 ต.ค. 2024
- In This Video On "Where, Group By, Order By Clause In MySQL" we cover essential SQL commands that are crucial for managing and analyzing data within MySQL databases. Understanding how to use the WHERE, GROUP BY, and ORDER BY clauses allows you to filter, group, and sort your data effectively. This tutorial is designed to help beginners grasp these fundamental concepts with clear examples and practical applications.
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This video on "Where, Group By, Order By Clause In MySQL With Examples | MySQL Tutorial" Includes the Following Topic:
1. How to use the WHERE clause in SQL?
The WHERE clause in SQL is used to filter records that meet certain conditions. It allows you to specify criteria that the data must meet to be included in the results. In this tutorial, we'll cover the syntax of the WHERE clause, how to use it with different data types, and combine multiple conditions using logical operators such as AND, OR, and NOT. By mastering the WHERE clause, you can retrieve precise data subsets that match your query requirements.
2. How to use the GROUP BY and ORDER BY clauses in SQL?
The GROUP BY clause in SQL is used to group rows that have the same values in specified columns into summary rows, such as finding the average, sum, count, or other aggregate functions. The ORDER BY clause is used to sort the result set of a query by one or more columns, either in ascending or descending order. This video explains how to use both clauses to organize and summarize your data effectively. We'll provide practical examples to illustrate their usage and show how they can be combined with aggregate functions to produce meaningful reports.
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