Home Database SQL The difference between groupby and orderby in sql

The difference between groupby and orderby in sql

Apr 29, 2024 pm 02:57 PM
aggregate function

GroupBy is used to aggregate data, while OrderBy is used to sort data. GroupBy returns the group, while OrderBy returns the sorted rows. GroupBy can contain aggregate functions, while OrderBy can contain regular columns.

The difference between groupby and orderby in sql

The difference between GroupBy and OrderBy in SQL

GroupBy

  • Combine rows with the same value into a grouping
  • Purpose: To summarize or aggregate data
  • Syntax:
SELECT column_name(s)
FROM table_name
GROUP BY column_name
Copy after login

OrderBy

  • Sort the result set by the value of the specified column
  • Purpose:Organize and display Data
  • Syntax:
SELECT column_name(s)
FROM table_name
ORDER BY column_name [ASC | DESC]
Copy after login

Difference

  • Usage: GroupBy Used to aggregate data, while OrderBy is used to sort data.
  • Result set: GroupBy returns groups, while OrderBy returns sorted rows.
  • Columns: GroupBy can contain aggregate functions, while OrderBy can contain regular columns.

Example

Suppose there is a table named "Sales" that contains the following data:

ProductSales
Apple100
Banana 50
Apple75
Banana25
Orange120

##GroupBy Example:

SELECT Product, SUM(Sales) AS TotalSales
FROM Sales
GROUP BY Product;
Copy after login

Result:

ProductTotalSalesApple175Banana75Orange120

OrderBy Example:

SELECT * FROM Sales
ORDER BY Sales DESC;
Copy after login
Results (sorted by sales volume in descending order):

##ProductOrangeAppleAppleBananaBanana
Sales
120
100
75
50
25

The above is the detailed content of The difference between groupby and orderby in sql. For more information, please follow other related articles on the PHP Chinese website!

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

Hot Article

R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
R.E.P.O. Best Graphic Settings
3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
R.E.P.O. How to Fix Audio if You Can't Hear Anyone
3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

The difference between sum and count in oracle The difference between sum and count in oracle May 02, 2024 pm 11:09 PM

SUM in Oracle is used to calculate the sum of non-null values, while COUNT counts the number of non-null values ​​of all data types, including duplicate values.

How to use count function in oracle How to use count function in oracle Apr 30, 2024 am 07:39 AM

The COUNT function in Oracle is used to count non-null values ​​in a specified column or expression. The syntax is COUNT(DISTINCT <column_name>) or COUNT(*), which counts the number of unique values ​​and all non-null values ​​respectively.

What does group by mean in sql What does group by mean in sql Apr 29, 2024 pm 02:48 PM

GROUP BY is an aggregate function in SQL that is used to group data based on specified columns and perform aggregation operations. It allows users to: Group data rows based on specific column values. Apply an aggregate function (such as sum, count, average) to each group. Create meaningful summaries from large data sets, perform data aggregation and grouping.

How to use avg in mysql How to use avg in mysql May 01, 2024 pm 09:16 PM

MySQL's AVG() function is used to calculate the average of numeric values. It supports multiple usages, including: Calculate the average quantity of all sold products: SELECT AVG(quantity_sold) FROM sales; Calculate the average price: AVG(price); Calculate the average sales volume: AVG(quantity_sold * price). The AVG() function ignores NULL values, use IFNULL() to calculate the average of non-null values.

How to use sum function in sql How to use sum function in sql May 02, 2024 am 12:01 AM

The SUM() function in SQL is used to calculate the sum of numeric columns. It can calculate sums based on specified columns, filters, aliases, grouping and aggregation of multiple columns, but only handles numeric values ​​and ignores NULL values.

How to write grouping function in mysql How to write grouping function in mysql Apr 29, 2024 am 04:30 AM

The grouping function in MySQL is used to calculate aggregate values ​​by grouping a data set. Commonly used functions are: SUM: Calculate the sum of the values ​​in the specified column COUNT: Calculate the number of non-NULL values ​​in the specified column AVG: Calculate the average value of the values ​​in the specified column MIN: Calculate the minimum value in the specified column MAX: Calculate the number of non-NULL values ​​in the specified column the maximum value of

How sum in sql is calculated How sum in sql is calculated May 09, 2024 am 09:27 AM

The SQL SUM function calculates the sum of a set of numbers by adding them together. The operation process includes: 1. Identifying the input value; 2. Looping the input value and converting it into a number; 3. Adding each number to accumulate a sum; 4. Returning the sum result.

What are the aggregate functions in sql What are the aggregate functions in sql May 02, 2024 am 01:12 AM

Aggregate functions in SQL are used to calculate and return a single value for a set of rows. Common aggregation functions include: Numeric aggregation functions: COUNT(), SUM(), AVG(), MIN(), MAX() Row set aggregation functions: GROUP_CONCAT(), FIRST(), LAST() Statistical aggregation functions: STDDEV (), VARIANCE() optional aggregate functions: COUNT(DISTINCT), TOP(N)

See all articles