At present, the common database management systems mainly include Oracle, MySQL, SQL Server, Mongodb, etc. Among these databases, the first three are relational databases, while Mongodb is a non-relational database. 1.OracleOracle is a relational database management system from Oracle Corporation. I ... More >>

With the increasing performance of mobile devices, the performance experience of web pages gradually becomes acceptable, and because of the many benefits of web development mode (cross-platform, dynamic update, volume reduction, unlimited expansion), there are more and more embedded web pages in APP ... More >>

1.1. Big KeyThe Redis big key problem is not actually a big Key problem, but the value corresponding to the Key is too large, so technically it is a Big Value problem, Redis value is too large (key value is too large). There is no unified standard for how large a value will cause a big key problem. ... More >>

With the rapid development of technology, the Internet, the growing popularity of smart devices, the application of big data processing technology and cloud computing technology, the personal information data of ordinary users are more and more complete and collected by various information systems, ... More >>

For the first time, I saw the concept of “de-QA” in an article. At that time, I looked at it casually without paying more attention.The second time I saw more senior colleagues in the QA community group talking about “de-QA”. At that time, in my little head, I felt that “de-QA” is still a little dis ... More >>

Preface Git plays a big role in managing the development branches of our development code. We usually have branches for production, pre-release, testing, and development. The normal process is development -> testing -> production, but there are usually many versions, there is a se ... More >>

The combination of big data and blockchain can significantly improve the usability of each other, and these technologies can help create a hybrid infrastructure with big data and blockchain as the backbone. The infrastructure will be flexible for different application types, such as its parents - b ... More >>

Configure multiple domain names for one site. Configure multiple sites for one serviceseparated by spaces. Nginx adds account password verification. Nginx Open Column Directory. Configure default site. IP access is not allowed. ... More >>

Devices using iOS share some commonalities that affect the experience of using their programs. Programs that adapt to these characteristics will be more successful, providing users with a superior experience with the device. 1.No matter the size, the screen is what mattersThe screen of an iOS device ... More >>

Here is a summary of some security-related configurations in nginx configuration. Hide version number123http { server_tokens off;} There are often security vulnerabilities targeting a certain version of nginx. Hiding the nginx version number has become one of the main security optimizati ... More >>