All Questions

2
answers

How can I get HTTPS in my web application?

In this link I learned how HTTPS works: StackOverFlow - How HTTPS works But I do not know which applications I should use, and how to get HTTPS, if it depends on some host , programming language etc. For more detail I say, my applicat...
asked on 16.01.2015 / 16:06
2
answers

Learning in neural networks

How does learning in neural networks occur? What is the concept behind? What is your relationship with "Deep Learning"?     
asked on 22.08.2015 / 12:16
5
answers

Why is a non-value variable considered uninitialized?

I noticed that PHP returns that a variable was not started if it has no value assigned to it. In my opinion, it does not make sense because the variable has already started and waits for a value. Example: class Users { public $username;...
asked on 25.08.2015 / 02:00
4
answers

How to improve this jQuery code?

I'm learning jQuery and I do not always know exactly how to develop the code more cleanly, semantically, I'll end up learning. How could I improve this code? $("#click_apoio").on('click', function( evento ){ evento.preventDefault();...
asked on 05.08.2015 / 15:29
3
answers

Select first record within a segmentation in SQL Server

I have the following example table: The query asks me to show which students entered first in each course. I can tell which student entered the university first, using the top(1) function, but how can I do this for each course?...
asked on 29.08.2017 / 16:48
5
answers

Know number of checkboxes selected

How many checkboxes are being selected and make a count. He selected 1, scored 1, selected another +1 mark, took 1 mark -1. I would like to do a count.     
asked on 30.06.2014 / 19:55
2
answers

Foreach C # vs ForEach () EF6

Follow the code below: % of EF6%: var result = ctx.Table.Where(x => x.User == "João").ToList(); result.ForEach(x => x.Read = true); ctx.SaveChanges(); ForEach() of C #: var result = ctx.Table.Where(x => x.User == "João...
asked on 07.06.2017 / 20:45
3
answers

How to convert seconds to the "Time: Minute: Second" format?

How can I convert a value in seconds to a format of 'hours: minutes: seconds'. Example: 685 converted to 00:11:25 How do I get there?     
asked on 21.07.2015 / 23:54
5
answers

Ignore CSS in certain section of the page

Let's say I have some CSS of the type: #foo input { background-color: black; color: white; /* seguem mais um milhão de propriedades */ text-align: center; z-index: 9000; } All% with% child of input will have all t...
asked on 02.05.2014 / 23:55
1
answer

How do I SELECT on 2 or more Tables with 2 or more conditions?

I have a problem making a select with the following conditions: I want to display the data with either condition1 or condition2 Select * tabela inner join tabela2 WHERE campo = 0 and campo2 = '' and campo3 or campo10 is NULL Select all the...
asked on 11.03.2014 / 11:14