太阳男子 书童

I understand the concept of database normalization, but always have a hard time explaining it in pla...

I am working on an IOT cloud project that needs to provide communication services with edge devices ...

I create a function where I pass parameter for my query and then I return result back to the call. f...

I have a data table that looks like this: Index | ref_num | year | jan_a | jan_b | jan_c | ... | dec...

I\'m cleaning up some code files (C#) and want to remove the regions. And I would like to delete all...

We all know how bad Singletons are because they hide dependencies and for other reasons. But in a f...

I have a POC account for MongoDB cloud which I am trying to connect to using mongo shell. After prov...

I\'m using django with apache and mod_wsgi and PostgreSQL (all on same host), and I need to handle a...

How do I split a console into two parts? I\'m trying to build a simple chat in C and I\'d like to ha...

Xcode 8 shows error that provisioning profile doesn\'t include signing certificate. This issue is w...

Here is the question as an image:

I know that below are the two ways in JavaScript to check whether a variable is not null, but I’m co...

Right now I have two applications that have different application signing keys, I would like to repl...

I have just installed postgresql and I specified password x during installation. When I try to do c...