All Questions

2
answers

applicationx-www-form-urlencoded with HttpWebRequest

I am making a system to authenticate the Token (derived from the credit card) next to Cielo. This token has special characters like + Cielo receives the data via XML. I made the following code to send: private String sendHttpRequest...
asked on 05.04.2016 / 18:20
1
answer

Why is strcpy () unsafe?

I'm reading about secure programming, and I read that the strcpy() function of the C language is an example of insecure function. I also read that there is a safe version of this function, which would be strcpy_s() . What is...
asked on 30.04.2016 / 21:57
1
answer

Import Excel to Sql Server C #

I need to import a excel file into a SQL table. However, I need to pick up the lines and go through them, since it will not be all the information I will get from excel. I have exactly what I need but get TXT file, but the informat...
asked on 05.04.2016 / 21:26
2
answers

How do I transpose a search result using SQL Server?

Or rather telling you how to make the columns of the result of a SQL Server search result become the result lines, as follows in the images below: A search result using the select clause: Maketheresultlooklikethis: Note: Remember...
asked on 04.02.2016 / 16:46
2
answers

How to make a presentable link

How do I "index" a link on a website to display it in a more presentable way? Example sites / app that do this is whatsapp, facebook, gmail. For example, in whatsapp just paste a link and wait a few seconds for it to take an image and link title...
asked on 08.06.2016 / 17:17
1
answer

The code generated by the GUI builder of netbeans affects application performance?

Netbeans has a user interface creation tool using swing a>, which greatly facilitates the development of desktop applications, however, the tool seems to create numerous lines of code even for something simple many times. Example: Thi...
asked on 28.01.2016 / 10:46
1
answer

How does SqlBulkCopy work?

I am using the SqlBulkCopy class for do the bulk data insertion. Everything has worked perfectly, but in recommending this to my co-workers, while proving efficiency, they questioned how it works. In my searches, I could see that S...
asked on 06.06.2016 / 19:06
1
answer

How does auto increment work with composite keys in the MyISAM engine?

I ended up getting a table to manipulate, I noticed that sometimes the value of auto increment was repeated, the first thing that called me to Attention was that the primary key was composed of two fields, one of which was AI and the other not....
asked on 18.02.2016 / 17:11
1
answer

Show hint only when the application starts for the first time

I have a desktop application that is a bit complicated, so I thought about helping the user to generate images (Hints) to help with the path. But I know how annoying this is, so I wonder if this is only possible when the application is first...
asked on 05.02.2016 / 19:12
2
answers

What is and what is a Seeder for?

I saw in% w_of% that there is a folder named Laravel . In it we have migrations and seeds. I understand that migrations are migrations, they are codes that provide specifications for creating the tables in the database, without the need...
asked on 04.05.2016 / 17:01