search
HomeDatabaseSQLWhat does round mean in sql

ROUND meaning in SQL

In SQL, the ROUND function is used to round a number to a specified number of decimal places. This function rounds a number according to the specified number of digits and returns the result as output.

Syntax

<code>ROUND(number, decimal_places)</code>

Where:

  • number: The number to be rounded.
  • decimal_places: Specifies the number of decimal places to round to.

Example

To round the number 123.4567 to two decimal places, you can use the following query:

<code>SELECT ROUND(123.4567, 2);</code>

Output:

<code>123.46</code>

Rounding rules

ROUND function follows standard rounding rules:

  • If the number after the rounding digit is greater than or equal to 5, then round The position increases by 1.
  • If the number following the rounding digit is less than 5, the rounding digit remains unchanged.

Note

  • If the specified number is NULL, the ROUND function returns NULL.
  • If the specified decimal_places is a negative number, the ROUND function returns the input number itself (unrounded).
  • If the specified decimal_places is greater than the number of decimal places of the input number, the ROUND function returns the input number directly.

The above is the detailed content of What does round mean in sql. For more information, please follow other related articles on the PHP Chinese website!

Statement
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
What are the different types of data partitioning in SQL (horizontal, vertical)?What are the different types of data partitioning in SQL (horizontal, vertical)?Mar 13, 2025 pm 02:01 PM

The article discusses horizontal and vertical data partitioning in SQL, focusing on their impact on performance and scalability. It compares benefits and considerations for choosing between them.

How to handle foreign key constraints in SQL delete rowsHow to handle foreign key constraints in SQL delete rowsMar 04, 2025 pm 05:52 PM

This article addresses deleting rows with foreign key constraints in relational databases. It details methods for handling constraint violations, including cascading deletes, restricting deletes, and setting nulls. The article emphasizes best pract

How do I use aggregate functions in SQL to summarize data (SUM, AVG, COUNT, MIN, MAX)?How do I use aggregate functions in SQL to summarize data (SUM, AVG, COUNT, MIN, MAX)?Mar 13, 2025 pm 01:50 PM

The article explains how to use SQL aggregate functions (SUM, AVG, COUNT, MIN, MAX) to summarize data, detailing their uses and differences, and how to combine them in queries.Character count: 159

What are the security risks of using dynamic SQL and how can I mitigate them?What are the security risks of using dynamic SQL and how can I mitigate them?Mar 13, 2025 pm 01:59 PM

The article discusses security risks of dynamic SQL, focusing on SQL injection, and provides mitigation strategies like using parameterized queries and input validation.

What are the different transaction isolation levels in SQL (READ UNCOMMITTED, READ COMMITTED, REPEATABLE READ, SERIALIZABLE)?What are the different transaction isolation levels in SQL (READ UNCOMMITTED, READ COMMITTED, REPEATABLE READ, SERIALIZABLE)?Mar 13, 2025 pm 01:56 PM

The article discusses SQL transaction isolation levels: READ UNCOMMITTED, READ COMMITTED, REPEATABLE READ, and SERIALIZABLE. It examines their impact on data consistency and performance, noting that higher isolation ensures greater consistency but ma

What are the ACID properties of transactions in SQL?What are the ACID properties of transactions in SQL?Mar 13, 2025 pm 01:54 PM

The article discusses the ACID properties (Atomicity, Consistency, Isolation, Durability) in SQL transactions, crucial for maintaining data integrity and reliability.

How to test SQL delete rowsHow to test SQL delete rowsMar 04, 2025 pm 05:53 PM

This article details effective testing strategies for SQL DELETE operations. It emphasizes verifying correct row deletion via pre- and post-deletion data comparisons, row counts, and negative testing. Best practices, including backups, transaction

What is the difference between SQL delete rows and truncateWhat is the difference between SQL delete rows and truncateMar 04, 2025 pm 05:49 PM

This article compares SQL's DELETE and TRUNCATE commands. DELETE removes rows individually, allowing conditional removal and transaction rollback. TRUNCATE is faster, removing all rows at once, but lacks rollback capability. Performance and data re

See all articles

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)
2 weeks agoBy尊渡假赌尊渡假赌尊渡假赌
Repo: How To Revive Teammates
1 months agoBy尊渡假赌尊渡假赌尊渡假赌
Hello Kitty Island Adventure: How To Get Giant Seeds
1 months agoBy尊渡假赌尊渡假赌尊渡假赌

Hot Tools

Atom editor mac version download

Atom editor mac version download

The most popular open source editor

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

Safe Exam Browser

Safe Exam Browser

Safe Exam Browser is a secure browser environment for taking online exams securely. This software turns any computer into a secure workstation. It controls access to any utility and prevents students from using unauthorized resources.

MantisBT

MantisBT

Mantis is an easy-to-deploy web-based defect tracking tool designed to aid in product defect tracking. It requires PHP, MySQL and a web server. Check out our demo and hosting services.

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment