Apple's Numbers spreadsheet for Mac, iPhone, and iPad, is not as powerful as Microsoft Excel, but most users will be hard-pressed to find its limitations — and will immediately see how much easier ...

This article will use SQL Server and PostgreSQL as examples to delve into the differences in their VARCHAR implementations and explain the usage rules of the 'N' prefix. Differences between VARCHAR in ...

There are significant differences in the implementation logic, character set support, and usage details of VARCHAR among various databases, with SQL Server and PostgreSQL being particularly ...