vce reader

/*author:jiangong sun*/As I ' ve manipulated a lot of data using SQL data reader in recent project. And people says it ' s not good to access the data by column name.So I ' ve made a performance test in reading data from SQL data reader.Firstly, I ' ve created a table with different data types, like int, varchar, date time etc.CREATE TABLE userinformation (Id BIGINT, FirstName NVARCHAR (255), LastName NVARCHAR (255), Validdate DATETIME, Identification

First put the code up, there is time to organize it. Because QT is used in work, it is realized by qt .... Just work, and busy!Three methods, reader first, writer priority and fair competition.Readers first#include #include#include#include#include#includeusing namespacestd;intBuffer//Critical ResourcesQmutex Bmutex;classReader: Publicqthread{Private: Static intReadercount; StaticQmutex Rdcnmutex; StaticQmutex Printmutex; Public: voidRead () {cou

First look at the card reader is not the problem, is inserted into the reader and then inserted into the computer, if the front of the interface does not respond, and then plug the interface bar, if the back of the interface is still not read out, then it will be replaced by a computer plug and unplug. If normal, the explanation is the original computer reason, if not normal is the reader's reason. 　If you

Google Reader is a feed aggregator built using a large amount of JavaScript. It can capture the latest feed data in a very timely manner. The data called by Google's Ajax front-end adopts the atom format. This data technology reduces the development difficulty of Google Reader and makes it easy for third-party applications to expand it. Get feed /Reader/ato

A few days ago, I participated in a learning and exchange group of agile individuals organized by Zhou jingen. Some people in the group discussed Google Reader's usage skills. More people do not know what Google Reader is. I wrote a blog here to share my skills in using Google Reader and the technology subscription source provided by instructor Zhou jingen. Some of the resources in this article come from th

Win8 "Reader" application opens PDF file directly In the Win8 start screen, we can see the eye-catching orange "reader" application icon, click it directly to open the application. Icon: Click on Win8 Start Screen orange "reader" application icons When you click on the orange Reader to apply the icon, th

[CNNVD] Adobe Reader and Acrobat Memory Corruption Vulnerability (cnnvd-201308-479)Adobe Reader and acrobat are all products of the United States Adobe (Adobe) company. Adobe Reader is a free PDF file reader, and Acrobat is a PDF file editing and Conversion tool.There are security vulnerabilities in Adobe

Adobe Reader is one of our most common electronic document reading tools, mainly for reading PDF documents. But it is well known that it starts too slowly. However, if I tell you that opening Adobe Reader can be as fast as opening word, you won't believe it. Let's take a look at the way to speed up Adobe Reader, believe it or not, it's not up to you! Why not acr

Traverse Records in a data readerWhen the ExecuteReader method returns a DataReader object, the position of the current cursor precedes the first record .The Read method of the reader must be called to move the cursor to the first record, and then the first record becomes the current record.If the data reader contains more than one record, the Read method returns a Boolean value of true.To move to the next

How to read XML from a file This example illustrates how to use the xmltextreader class to read XML from a file. This class provides direct analysis and tagging of XML, and implements W3C Extensible Markup Language (XML) 1.0 and namespace specifications in XML. VB readxmlfile. aspx [Running example] | [View Source code] The xmlreader class provides

if the Linux version of the EPUB reader is the mainstream of reading on a tablet computer, reading on a computer is very rare. Focus on reading the 16th century book is very difficult, no one want to pop out of the background QQ Chat window. But if you have to open the ebook on your computer, you'll need an ebook reader software. Most publications support e-books in EPUB format (electronic publications). Fo

Transfer from http://blog.csdn.net/zoudaokou2006/article/details/3966694The reader-writer problem is a classic process synchronization problem that is implemented with semaphores. In the system, a data set (such as a file or record) is shared by several concurrent processes, which are divided into two categories, one of which requires only re-operation, called "Reader", and the other requires write or modif

Reader domain: If you want to restrict access to a specific document created by a form, add a "Reader" field to the form. The "Reader" field clearly lists users who can read the documents created in this form. For example, if you restrict the personnel files of an employee to only members of the "Human Resources" department, the employee himself or herself, and t

PDF is an electronic file format developed by Adobe, where many e-books, product descriptions, and corporate documents are made into PDF files in everyday office. Because our operating system does not support the open PDF file by default, it becomes a question for many users how to open the PDF file. In fact, as long as a good PDF reader installed on our computer, you can easily read the contents of the PDF file. In addition, the use of mobile phones

It is now July 22, July 1, 2013, Beijing time. When July 15, July 1, Google will close Google Reader. Although I haven't opened Google Reader for a long time;Although I no longer feel the pressure on Goole reader to read more than 1000 of the data, I almost ignored it even if I saw it;Although I haven't written a blog for a long time;Although blogs are no longer

In order to better read and use PDF files, we have to work with the reader. A practical reader can effectively solve the problems we meet, but also can help you to convert PDF files. This small series is also summed up several useful readers, today to share with you, so that more friends in the work to complete the reading of the PDF file.Light PDF Reader Green E

How does a mini PDF reader work? at present, many documents are in PDF format, so many netizens will download a PDF reader in the computer, then, which PDF reader better use it? Small series to recommend a software, that is, mini PDF reader, then, this software how to use? Let's take a look at today's tutorial!

Linux version epub ReaderThis article navigation -1. Calibre09% -2. FBReader23% -3. Cool Reader33% -4. Okular44% -5. Ppub51% -6. epub63% -7. Sigil74% If it is the mainstream of a tablet computer, reading on a computer is very rare. Focus on reading the 16th century book is very difficult, no one want to pop out of the background QQ Chat window. But if you have to open the ebook on your computer, you'll need an ebook rea