When creating the database structure it is important to make sure that each row in a table has a unique ID so that it can be easily indexed, retrieved, and manipulated when needed. The most common methods

为了追求速度，我给大电脑配了两块硬盘，分别是512GB的Intel 760P NVMe M.2 2280接口SSD以及2TB的Intel 760P NVMe M.2 2280接口SSD。 (图源 ：pixabay) 其中512G的SSD我用作系统盘，在装机的时候系统自动帮我处理了分区/格式化之类的问题，今天来处理一下2T的SSD。 列举磁盘 首先，列举一下磁盘 sudo fdisk -l 找到2T的SSD对应的条目

While I worked on Smart contracts with Solidity, I had to store users UUID mapped to user address. In solidity, this could be easily done with mapping data structure, but if we are want to use UUID as