when should I use a relational database and when should I use a non-relational database? ...
High performance MySQL (3rd edition, 1st edition, May 2013) on page 390, it is mentioned that the current generation of RDBMS technology has been optimized for mechanical hard drives for decades, and the same mature and in-depth research work has not re...
reference links at the end of this article: tutorials of this code and how to use interfaces, tutorials of switch statements links are links 1. summary of there are more implementation methods , for link 2. the links in the text are visually ...
demand: enable users to download video files embedded in h5 Q: what to do, bosses ...
Environment: PostgreSQL 9.4.1 on x86_64-unknown-linux-gnu, compiled by gcc (Debian 4.7.2-5) 4.7.2, 64-bit question: in the current Linux system, the character sorting rule of the database is en_US.utf8, so that the Chinese sorting is not the desir...
the animation library Animate is used in the project. The problem now is that the routing jump is completed instantly, so the speed of the animation will be very fast when the route is redirected, and the global animation time will not work. I would like...
1. First of all, the business goes something like this. Now we need to write some function libraries for others to use, and the back end can send this script string to our front-end angular program through a http request. We parse these scripts and execu...