All Questions

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How to get a Mac-Address from a LAN IP using .NET Core on Linux?

I already have tools that can identify the Mac-Address of the devices in my network, as long as the 'server' or the application is running in Windows and .NET Framework. I have used the following: using System; using System.Net; using Syste...
asked on 26.10.2017 / 21:32
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SQL Server performance loss with insert in sequence

I have a .Net C # application that takes data via Web Service and saves it to a SQL Server 2012 database. The initial performance is 20 records per second. After having a 10000 records in the table, the performance begins to fall, gradually, rea...
asked on 09.09.2014 / 21:59
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Accessing Webservice over Android - KSOAP2

I'm creating an Android APP and I have to connect to my company's web service to make the login system, I'm using the KSOAP2 3.3.0 lib. The path to my WS is for example as: link My problem that happens: 09-04 10:57:52.835: W/System.err...
asked on 04.09.2014 / 16:24
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How to get ID by clicking on a Dynamically added element

I'm getting inside a div new elements via PHP using XMLHttpRequest . So far so good, I get the elements and it displays everything right, but I'm not able to get the ID of these new elements using the Click event. Ex: <div id="...
asked on 21.10.2014 / 19:53
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Why Oracle does not have autoincrement?

Assuming that Oracle is known to have the capabilities of the sequence table. I would like to understand why I recently implemented autoincrement in Oracle, since it was an existing feature in competitors (SQL Server, MySQL). What motivat...
asked on 01.11.2017 / 13:23
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Syntax error "Unexpected tag name" in Symfony2 / Twig

My list has the following code: <h1>Posts</h1> {% for posts in post %} <article> <h2> {% post.titulo %} </h2> <div class="content"> {% post.conteudo...
asked on 04.09.2014 / 12:23
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Spring Beans Injection in JAX-WS / Tomcat 7 (@WebServices) - Does not work, returns NullPointerException (NPE)

I would like to inject ( @Autowired or @Resource ) beans created by Spring ( 3.x or 4.x ) into a class that implements a JAX-WS interface (reference implementation). I tested it on Tomcat 6 and it works, but on Tomca...
asked on 09.09.2014 / 20:42
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How is a pointer variable for integer stored?

When we declare: int* x; How does the compiler compile this and how does the computer (would it be better to say operating system because it is the one that manages the memory) does this? I mean, S.O. reserves a space in memory t...
asked on 23.09.2014 / 23:51
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Error installing / running WampServer 2.5

I installed WampServer 2.5 64bits and during installation there was no error, but the following message appears in the run.    The configuration file contains a syntax error on line 325: [EParseError] Parameter "Service" specifies an unknown...
asked on 01.09.2014 / 19:49
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Foreign key in MongoDB

I have the users collection and the shopping The ratio is 1 user for N purchases where each purchase is a document. What I intended was, when doing a findOne in the users table, it would automatically include purchases, the result wou...
asked on 04.10.2014 / 21:17