All Questions

1
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What is the proper way to manage multiple possibilities?

Each possibility has an answer. I know it should be done with switch / case , but I understand that it only works with constants, and what I use is a variable, right? I tried to use it and it gave me syntax errors. What I have do...
asked on 09.03.2018 / 15:38
1
answer

BDOO error with Persistence EclipseLink-4002

I'm trying to increase and I now get this error: Exception [EclipseLink-4002] (Eclipse Persistence Services - 2.5.2.v20140319-9ad6abd): org.eclipse.persistence.exceptions.DatabaseException Internal Exception: org.postgresql.util.PSQLException:...
asked on 22.03.2018 / 17:45
1
answer

Events with drop-down lists

How to make an "event" occur when you choose an option of select name="SistemasOperativos" and from this select show another list.  that is: name="ClasificacionWvista" , name="ClasificacionW7" or name="Clasif...
asked on 09.03.2018 / 22:24
1
answer

Database .NET Core Reverse Proxy

Currently, for entertainment, I am setting up a .NET Core server on a raspberry pi 3 with raspbian. So far I have not had many problems and I have a kestrel + apache server with reverse proxy. My problem comes when I want to add a database. I...
asked on 13.03.2018 / 17:18
2
answers

How to change the value of find in a table with a popup?

I have the following problem, I open a popup window. pressing the save button updates the current tr of the table. This does it very well with this: parent = linkObj.closest("tr"); parent.find('td, th').css('backgr...
asked on 13.03.2018 / 00:37
1
answer

How to get the latest registration | mongoDB | Nodejs

I am developing a small project and I have a very simple question, if I have in DB a few records, for example these: { { 'name':'nombre1', 'edad':'22' }, { 'name':'nombre2', 'edad':'23' }, { 'name':'nombre3', 'edad':'24' }, }...
asked on 14.03.2018 / 01:15
1
answer

SQL queries shown in a html + php table

At the moment I am working on a simple sql query through a search contained by a word stored in a variable, where I make a select and ask that I show the results in a table in html, but the problem is that if that word has several records create...
asked on 08.04.2018 / 22:56
1
answer

Operate with powers of decimals in shell

I'm trying to make a shell script that takes numeric data that are usually decimal of type 0.00004 and I have to square them. Using "bc" the result I get 0. Example: echo "(0.0000003+0.0000005)^2"|bc 0 Looking at the help of bc, he says...
asked on 06.04.2018 / 20:57
1
answer

GroupBy Data Validation

It is necessary to group the items by name Then we must see that all those with the same names also coincide in RREF1, RREF2, RREF3 and if they are not the same in the RREF that says which. # Agrupacion por valores similares en column...
asked on 09.04.2018 / 20:39
2
answers

How to put a container-fluid that occupies 100% of the pag

I have a problem, I want to place a container-fluid occupies 100% of the page so you can place inside a container to place it in the center. <div class="container-fluid bg-success" style = "height: 1000px"> <!-- Container total de la...
asked on 06.04.2018 / 03:06