Why Does MySQL Lack Millisecond Precision in TIMESTAMP, and How Has This Been Resolved?-Mysql Tutorial-php.cn

Home

Database

Mysql Tutorial

Why Does MySQL Lack Millisecond Precision in TIMESTAMP, and How Has This Been Resolved?

DDD

Nov 28, 2024 pm 01:59 PM

Why Does MySQL Lack Millisecond Precision in TIMESTAMP, and How Has This Been Resolved?

Why Lack of Millisecond Precision in MySQL?

Recent discoveries have brought forth a perplexing issue within MySQL's TIMESTAMP field, revealing its inability to cater to precision beyond second-level accuracy. This poses a significant challenge for PHP and Doctrine users seeking microsecond precision for their TimestampAddable entities.

Concerned developers have pondered potential workarounds, considering alternatives such as BIGINT fields or UDF extensions. However, neither option seems fully satisfactory due to limitations in Doctrine's timestamp handling and the potential for compatibility issues with existing date manipulation functions.

Resolution on the Horizon

Thankfully, MySQL has addressed this long-standing limitation in its most recent version, 5.6.4. This update brings support for fractional seconds in TIME, DATETIME, and TIMESTAMP values, with precision reaching up to microseconds. This significant improvement provides developers with the enhanced precision they require for more accurate data handling.

The above is the detailed content of Why Does MySQL Lack Millisecond Precision in TIMESTAMP, and How Has This Been Resolved?. 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

How do you alter a table in MySQL using the ALTER TABLE statement?Mar 19, 2025 pm 03:51 PM

The article discusses using MySQL's ALTER TABLE statement to modify tables, including adding/dropping columns, renaming tables/columns, and changing column data types.

How do I configure SSL/TLS encryption for MySQL connections?Mar 18, 2025 pm 12:01 PM

Article discusses configuring SSL/TLS encryption for MySQL, including certificate generation and verification. Main issue is using self-signed certificates' security implications.[Character count: 159]

How do you handle large datasets in MySQL?Mar 21, 2025 pm 12:15 PM

Article discusses strategies for handling large datasets in MySQL, including partitioning, sharding, indexing, and query optimization.

What are some popular MySQL GUI tools (e.g., MySQL Workbench, phpMyAdmin)?Mar 21, 2025 pm 06:28 PM

Article discusses popular MySQL GUI tools like MySQL Workbench and phpMyAdmin, comparing their features and suitability for beginners and advanced users.[159 characters]

How do you drop a table in MySQL using the DROP TABLE statement?Mar 19, 2025 pm 03:52 PM

The article discusses dropping tables in MySQL using the DROP TABLE statement, emphasizing precautions and risks. It highlights that the action is irreversible without backups, detailing recovery methods and potential production environment hazards.

How do you represent relationships using foreign keys?Mar 19, 2025 pm 03:48 PM

Article discusses using foreign keys to represent relationships in databases, focusing on best practices, data integrity, and common pitfalls to avoid.

How do you create indexes on JSON columns?Mar 21, 2025 pm 12:13 PM

The article discusses creating indexes on JSON columns in various databases like PostgreSQL, MySQL, and MongoDB to enhance query performance. It explains the syntax and benefits of indexing specific JSON paths, and lists supported database systems.

How do I secure MySQL against common vulnerabilities (SQL injection, brute-force attacks)?Mar 18, 2025 pm 12:00 PM

Article discusses securing MySQL against SQL injection and brute-force attacks using prepared statements, input validation, and strong password policies.(159 characters)

See all articles