


How Can I Display DATETIME Values in a Custom Format (e.g., DD-MM-YYYY HH:MM:SS) in MySQL?
Customizing DATETIME Format in MySQL Table Creation
Despite extensive research, you're seeking a solution to establish a new table with a DATETIME column featuring a predefined format of 'DD-MM-YYYY HH:MM:SS.'
MySQL inherently stores DATETIME values in 'YYYY-MM-DD HH:MM:SS' format. While you cannot alter the storage format, you have options to customize the display format when required.
Leveraging Time Format Functions
MySQL provides a plethora of time format functions to transform the display format of DATETIME values. One such function is DATE_FORMAT, which allows you to specify the desired format:
SELECT DATE_FORMAT(column_name, '%m/%d/%Y %H:%i') FROM tablename;
This query will retrieve the DATETIME value from the specified column and display it in the 'MM/DD/YYYY HH:MM' format. You can substitute the format string with the desired pattern as per your requirements.
Example:
CREATE TABLE orders ( order_date DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP );
Even though the DATETIME column in the 'orders' table stores values in the default MySQL format, you can use the DATE_FORMAT function to display them in the preferred 'DD-MM-YYYY HH:MM:SS' format:
SELECT order_date AS formatted_order_date, DATE_FORMAT(order_date, '%d-%m-%Y %h:%i:%s') AS custom_order_date FROM orders;
This query will produce two columns: 'formatted_order_date' with the original datetime value in MySQL format and 'custom_order_date' with the value in 'DD-MM-YYYY HH:MM:SS' format.
The above is the detailed content of How Can I Display DATETIME Values in a Custom Format (e.g., DD-MM-YYYY HH:MM:SS) in MySQL?. For more information, please follow other related articles on the PHP Chinese website!

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics











Full table scanning may be faster in MySQL than using indexes. Specific cases include: 1) the data volume is small; 2) when the query returns a large amount of data; 3) when the index column is not highly selective; 4) when the complex query. By analyzing query plans, optimizing indexes, avoiding over-index and regularly maintaining tables, you can make the best choices in practical applications.

MySQL is an open source relational database management system. 1) Create database and tables: Use the CREATEDATABASE and CREATETABLE commands. 2) Basic operations: INSERT, UPDATE, DELETE and SELECT. 3) Advanced operations: JOIN, subquery and transaction processing. 4) Debugging skills: Check syntax, data type and permissions. 5) Optimization suggestions: Use indexes, avoid SELECT* and use transactions.

MySQL is suitable for beginners because it is simple to install, powerful and easy to manage data. 1. Simple installation and configuration, suitable for a variety of operating systems. 2. Support basic operations such as creating databases and tables, inserting, querying, updating and deleting data. 3. Provide advanced functions such as JOIN operations and subqueries. 4. Performance can be improved through indexing, query optimization and table partitioning. 5. Support backup, recovery and security measures to ensure data security and consistency.

The main role of MySQL in web applications is to store and manage data. 1.MySQL efficiently processes user information, product catalogs, transaction records and other data. 2. Through SQL query, developers can extract information from the database to generate dynamic content. 3.MySQL works based on the client-server model to ensure acceptable query speed.

MySQL is an open source relational database management system, mainly used to store and retrieve data quickly and reliably. Its working principle includes client requests, query resolution, execution of queries and return results. Examples of usage include creating tables, inserting and querying data, and advanced features such as JOIN operations. Common errors involve SQL syntax, data types, and permissions, and optimization suggestions include the use of indexes, optimized queries, and partitioning of tables.

InnoDB uses redologs and undologs to ensure data consistency and reliability. 1.redologs record data page modification to ensure crash recovery and transaction persistence. 2.undologs records the original data value and supports transaction rollback and MVCC.

MySQL's position in databases and programming is very important. It is an open source relational database management system that is widely used in various application scenarios. 1) MySQL provides efficient data storage, organization and retrieval functions, supporting Web, mobile and enterprise-level systems. 2) It uses a client-server architecture, supports multiple storage engines and index optimization. 3) Basic usages include creating tables and inserting data, and advanced usages involve multi-table JOINs and complex queries. 4) Frequently asked questions such as SQL syntax errors and performance issues can be debugged through the EXPLAIN command and slow query log. 5) Performance optimization methods include rational use of indexes, optimized query and use of caches. Best practices include using transactions and PreparedStatemen

MySQL is chosen for its performance, reliability, ease of use, and community support. 1.MySQL provides efficient data storage and retrieval functions, supporting multiple data types and advanced query operations. 2. Adopt client-server architecture and multiple storage engines to support transaction and query optimization. 3. Easy to use, supports a variety of operating systems and programming languages. 4. Have strong community support and provide rich resources and solutions.
