Community driven content discussing all aspects of software development from DevOps to design patterns. If you plan to do database development with Java and MySQL, the first thing you’ll need to do is ...

MySQL and PostgreSQL are two of the most used open source SQL databases, and both fulfill the role of a general-purpose database well. How do you choose which one to use for a project? Let's look at ...

An enumerated type specifies a set of related constants as its values. Examples include the days in a week, the standard north/south/east/west compass directions, a currency’s coin denominations, and ...

I found this bug in the liquibase forms 10 years ago and was said to be resolved so this is possibly a regression: https://forum.liquibase.org/t/generatechangelog ...

PostgreSQL 提供了一种访问和操作外部数据源的机制，称为外部数据包装器（Foreign Data Wrapper）。利用这种外部数据管理机制，我们可以在 PostgreSQL 中访问各种同构数据库（PostgreSQL）、异构数据库（MySQL、Oracle、SQL Server、SQLite、HBase、Cassandra、ClickHouse、CouchDB、MongoDB ...

Your browser does not support the audio element. Quite often in my practice, I see people use varchar fields with a small and limited number of available options. Let ...

Some users have been experiencing the “Error: MySQL shutdown unexpectedly” error message when they try to start the MySQL server through the XAMPP web server ...