Programmer Think

Realization motivation The simplification and integration of configuration are the two main problems that line expressions want to solve. In the cumbersome data fragmentation rule configuration, with the increase of data nodes, a large number of repeated configurations make the configuration itself difficult to maintain. The line expression c ...

hiredis Hiredis is an open source C library function that provides basic redis operation functions, such as database connection, sending commands, releasing resources, etc 1,hiredis net hiredis itself is a cross platform code. It is built in c language and can be executed on a variety of platforms. Let's see what his net block has done #in ...

Insert query results into other tables Be able to write SQL statements that insert query results into other tables 1. Thinking At present, there is only one goods table. We want to add a commodity classification information. For example, the classification information of mobile devices cannot be added only through the goods table. How ...