All Questions

1
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How to get values from a column of several tables displayed on a web page?

On a web page, there are one or more tables with information that I need to get in list form. Specifically, I need to get a list of the values of the second column of a table of the Web page that I inform. For example, the pages below. Lin...
asked on 18.12.2013 / 14:17
2
answers

The difference between Software Service and Standalone

I have a question about Softwares that works as Service and others that work as Standalone . Software Service (background process)    A background process is a computer process that runs "on the   backstage "(ie in th...
asked on 01.04.2014 / 22:42
3
answers

How to leave facebook comments plugin with 100% width?

Is there any possibility of leaving the facebook plugin with 100% width? I think its default is 550px width.     
asked on 18.03.2014 / 16:11
3
answers

How to compare the difference between two dates in Delphi?

I need to compare 2 dates to see if the expiration date is Bigger than the current date, if it is Minor it returns an error, follows the code I made and did not work.   var Data_Atual: String; Data_vencimento: String; begin Data_Atual...
asked on 27.05.2014 / 23:11
1
answer

How to return the last value of an sql string?

I need to use the last character of a string G. How do I get it with sql server? SET @VALOR = '0000050529-G' I want to get the letter G     
asked on 13.12.2018 / 14:04
2
answers

How to check for errors in an XML

I'm using the simplexml_load_string function to load a dynamic XML, but if there are formatting errors in this XML it only returns me false and I do not know where the error is, can I check this?     
asked on 02.01.2014 / 14:21
2
answers

Repeating the subtraction of groups in a data frame for all numeric variables

I have the following code: df <- data.frame(grp = rep(letters[1:3], each = 2), index = rep(1:2, times = 3), value = seq(10, 60, length.out = 6), value2 = seq(20, 70, length.o...
asked on 03.12.2018 / 15:55
3
answers

Create an "opaque stripe" on top of a tr

I have a dynamically generated table: IwouldliketocreateaclassinCSSthatwouldmakea"layer" overhead with transparency. Example: If I use background-color , it will only change the background, so it would have to be something...
asked on 27.07.2018 / 19:12
1
answer

Why (a x b) produces a result other than ((a x) and (x b))?

List all fields of all products whose cost plus 30% is greater than 8 and less than 10. That was my answer: SELECT * FROM 'produtos' WHERE (8 < (pcusto*1.3) < 10); This is the template: SELECT * FROM 'produtos' WHERE 8 < (pcus...
asked on 14.09.2018 / 18:00
2
answers

Stored Procedure in the Entity Framework without model edmx

I have a project that uses the Entity Framework without a edmx template, we have registered entities manually create a class and insert it into the context. Does anyone use this format and know how to register a Stored Procedure this...
asked on 29.01.2014 / 19:02