MySQL PostgreSQL 資料庫技術 MySQL 是一個純粹的關聯式資料庫管理系統。 PostgreSQL 是一個物件型關聯式資料庫管理系統。 功能 MySQL 對資料庫功能 (例如檢視、觸發程序和程序) 的支援有限。 PostgreSQL 支援各項最進階的資料庫功能,例如具體化視觀表、INSTEAD OF 觸發程序,以及多種語言的預存程序。 資料類型 ...
However, a notable difference in MySQL is that not all SQL syntaxes are supported. The supported syntaxes that are available are similar across both databases. This will be explored further in the “Queries” section below. PostgreSQL Query: SELECT * FROM employees; MySQL Query: SELECT *...
TRUNCATE TABLE(删除表) PostgreSQL TRUNCATE TABLEsupports more features like CASCADE, RESTART IDENTITY, CONTINUE IDENTITY, transaction-safe, etc.(对于移除表中的数据,delete是可以的,但是对于一个大表,truncate是更加有效的方式,因为truncate删除表中所有行的时候不需要扫表整个表) MySQL TRUNCATE TABLE does not ...
MySQL — a fast, reliable, scalable and easy-to-use open-source relational database system — is designed to handle mission-critical, heavy-load production applications. It is a common and easy-to-start database with low memory, disk and CPU utilization, managed by a relational database mana...
许多开发人员和分析师首先使用 MySQL,因为它确实具有较低的进入门槛并且非常直观。如果开发人员发现自己需要这些功能,没有什么能阻止他们转向 PostgreSQL。事实上,几乎所有在 MySQL 中学到的概念和查询语法都可以转移到 PostgreSQL 或任何其他 SQL 平台,如果你最终转换的话,就像我在更换雇主时所做的那样。高级数据类型,例...
SQL Server, PostgreSQL, MySQL: What's the Difference? In this tutorial, you'll learn some of the basic differences between SQL dialects and where you should begin. Mona Khalil 5 min blog SQL vs NoSQL Databases: Key Differences and Practical Insights Discover how to decide between SQL and ...
PostgreSQL is designed to prioritize extensibility, standards compliance, scalability, and data integrity. Sometimes, these features can decrease performance compared to MySQL, especially in simple read-heavy workloads. However, it's important to note that the exact performance difference depends on variou...
PostgreSQL is designed to prioritize extensibility, standards compliance, scalability, and data integrity. Sometimes, these features can decrease performance compared to MySQL, especially in simple read-heavy workloads. However, it's important to note that the exact performance difference depends on variou...
What is the difference between PostgreSQL and SQL Server licensing? Comparison of PostgreSQL vs. MSSQL Server licensing model 中文:两种数据库的licensing问题比较 PostgreSQL是一个开源数据库,采用了PostgreSQL License,是一个开源计划的认可许可。使用PostgreSQL进行任何目的,包括商业目的,都是免费的。在PostgreSQL全...
What is the difference between PostgreSQL and SQL Server licensing? Comparison of PostgreSQL vs. MSSQL Server licensing model 中文:两种数据库的licensing问题比较 PostgreSQL是一个开源数据库,采用了PostgreSQL License,是一个开源计划的认可许可。使用PostgreSQL进行任何目的,包括商业目的,都是免费的。在PostgreSQL全...