beginning c 2008 from novice to professional second edition

... CommerceLibAccess: public static List<CommerceLibOrderInfo> GetOrdersByCustomer( string customerID) { // get a configured DbCommand object DbCommand comm = GenericDataAccess.CreateCommand(); ... method to CommerceLibAccess: public static List<CommerceLibOrderInfo> GetOrdersByRecent( int count) { // get a configured DbCommand object DbCommand comm = GenericDataAccess.CreateCommand(); ... OrderProcessorException( "Error occured while checking funds.", 1); When this pipeline stage finishes, processing moves straight on to PSCheckStock The PSCheckStock Class The PSCheckStock

Ngày tải lên: 09/08/2014, 14:20

... request.Transaction.CardTxn.Card.CardNumber = orderProcessor.Order.CreditCard.CardNumber; request.Transaction.CardTxn.Card.ExpiryDate = orderProcessor.Order.CreditCard.ExpiryDate; if (orderProcessor.Order.CreditCard.IssueDate ... reference orderProcessor = processor; // audit orderProcessor.CreateAudit("PSCheckFunds started.", 20100); try { // check customer funds via DataCash gateway // configure DataCash ... e-commerce web site, you’ll probably want to customize this functionality Don’t forget to read (and comply to) the Amazon E-Commerce. .. testing) Optionally, you could configure other context

Ngày tải lên: 09/08/2014, 14:20

... discussion when I describe sort later in the chapter count The count method counts the occurrences of an element in a list: >>> ['to', 'be', 'or', 'not', 'to', 'be'].count('to') 2 Actually, ... a common data structure called a stack A stack like this works just like a stack of plates You can put plates on top, and you can remove plates from the top The last one you put into the stack ... digits—not integers. Trang 29The dict FunctionYou can use the dict function1 to construct dictionaries from other mappings (for example, other dictionaries) or from sequences of (key, value) pairs: >>>

Ngày tải lên: 12/08/2014, 10:21

... the concepts of object-oriented programming, you probably know about constructors Constructors will not be dealt with in this chapter; for a full discussion, see Chapter 9. The Magic of Objects ... mathematical def-inition of the factorial, which can be stated as follows: • The factorial of 1 is 1 • The factorial of a number n greater than 1 is the product of n and the factorial of n–1. As you can ... direct implementation of the definition Just remember that the function call factorial(n) is a different entity from the call factorial(n-1) Let’s consider another example Assume you want to calculate

Ngày tải lên: 12/08/2014, 10:21

... to follow some given protocol cer-So, to be a sequence, all you have to do is follow the sequence protocol. The Basic Sequence and Mapping Protocol Sequences and mappings are basically collections ... function, but most of them are called automatically by Python under certain circumstances (For example, init is called after object creation.) Constructors: These are common to many object-oriented ... How-To Guide for Descriptors (http://users.rcn.com/python/download/Descriptor.htm) Trang 12self-like parameter normally called cls You can call class methods directly on the class object too,

Ngày tải lên: 12/08/2014, 10:21

... matching fields • Create a dictionary to act as a scope for the template • Define a replacement function that does the following: • Grabs group 1 from the match and puts it in code • Tries to ... pstats) can be used for a more comprehensive analysis of the efficiency of a piece of code The trace module (and program) can give you a coverage analysis (that is, which parts of your code are executed ... of tools for creating and combining iterators (or other able objects) There are functions for chaining iterables, for creating iterators that return consecutive integers forever (similar to range,

Ngày tải lên: 12/08/2014, 10:21

... construct such protocol objects when a new connection arrives If you just want to create instances of a custom protocol class, you can use the factory that comes with Twisted, the Factory class in the ... LineReceiver Protocolfrom twisted.internet import reactor from twisted.internet.protocol import Factory from twisted.protocols.basic import LineReceiver class SimpleLogger(LineReceiver): def connectionMade(self): ... involved; you need to instantiate Factory and set its protocol attribute so it knows Trang 3which protocol to use when communicating with clients (that is, your custom protocol) Then you start

Ngày tải lên: 12/08/2014, 10:21

... several reasons One common problem that can occur is “second system syndrome.” This is the tendency to try to make the second version so clever or perfect that it’s never finished The “continual rewriting ... your project from scratch at any point, especially if you’ve invested some time and effort into the prototype It is probably better to refactor and modify that prototype into a more functional ... extension to Distutils can be used to create executable binaries from your Python programs Along with a couple of extra files (which can be LETTING THE WORLD KNOW You have a choice of many places to

Ngày tải lên: 12/08/2014, 10:21

... Controller Interface (client.py) from xmlrpclib import ServerProxy, Fault from cmd import Cmd from random import choice from string import lowercase from server import Node, UNHANDLED from threading ... Reference Simply put, you subclass Cmd to create a command-line inter-face, and implement a method called do_foo for each command foo you want it to be able to handle This method will receive ... blitting To blit (calling a surface object’s blit method) simply means to transfer the contents of one surface to another (The word blit is derived from the technical term block transfer, which is

Ngày tải lên: 12/08/2014, 10:21

... 343autoexec.bat file, 98, 216 automated tests, 351automatic checkerslimits to capabilities of, 361PyChecker/PyLint tools, 359–362, 364automatic refactoring tool (2to3), 599AWT (Abstract Window Toolkit), ... exception classes, 162, 163 catching exceptions, 163–170 catching all exceptions, 167, 169 catching exception object, 166 catching many exceptions in one block, 166 danger of catching all exceptions, ... 66 cat command, files, 265 catching exceptions, 163–170 catching all exceptions, 167, 169 catching exception object, 166 catching many exceptions in one block, 166 center method, strings, 586 CGI

Ngày tải lên: 12/08/2014, 10:21

... percentage of our customers are in the high-income bracket?” If keywords and categories are not stored correctly initially, these reports can become very difficult to produce Example 1-1 describes ... which humor is never very far from the surface Beginning Database Design deserves to become a popular classic, in the best acceptance of the word; every important concept is here, for all to ... might have customers,products, and orders We need to record a customer’s name That clearly belongs with our set of customer data What about address? Now, does that mean the customer’s contact 1 Grady

Ngày tải lên: 16/04/2017, 10:44

... information from your database. Clare Churcher Author of Beginning Database Design: From Novice to Professional From Novice to Professional MaGenTa Black panTone 123 c Clare Churcher Companion ... Queries: From Novice to ProfessionalCopyright © 2008 by Clare Churcher All rights reserved No part of this work may be reproduced or transmitted in any form or by any means, electronic or mechanical, ... Renow-Clarke, Dominic Shakeshaft, Matt Wade, Tom Welsh Project Manager: Beth Christmas Copy Editors: Marilyn Smith, Kim Wimpsett Associate Production Director: Kari Brooks-Copony Production Editor:

Ngày tải lên: 10/04/2017, 09:12

... HuddlestonRanga Raghuram, Syed Fahad Gilani, Jacob Hammer Pedersen, and Jon Reid Beginning C# 2008 Databases From Novice to Professional Trang 4Beginning C# 2008 Databases: From Novice to ProfessionalCopyright ... print for content only—size & color not accurate spine = 0.9682" 512 page countBeginning C# 2008 Databases: From Novice to Professional Dear Reader, This book focuses on accessing databases ... 197 Connection String Parameters for SqlConnection 197 Connection Pooling 199 Improving Your Use of Connection Objects 199 Using the Connection String in the Connection Constructor

Ngày tải lên: 08/08/2014, 18:21

... Works listed in the CardType column of the CreditCard table Select CardType, ExpYear,count(CardType) AS 'Total Cards' from Sales.CreditCard WHEREcondition ensures that the cards listed will be ... complete process from conception to implementa-tion The entire development and implementation process of this cycle can be divided into small phases; only after the completion of each phase can you ... take many orders, which were placed bymany customers The products ordered may come from different suppliers, and chancesare that each supplier can supply more than one product All of these relationships

Ngày tải lên: 08/08/2014, 18:21

... LastName columns Trang 2Figure 5-3.Selecting specific columnsUsing the WHERE Clause Queries can have WHEREclauses The WHEREclause allows you to specify criteria for ing rows This clause can be complex, ... Characters Wildcard Description % Any combination of characters Where FirstName LIKE 'Mc%' selects all rows where the FirstName column equals McDonald, McBadden, McMercy, and so on. _ Any one character ... table containing or not containing the result set returned by a SELECTquery SELECT INTOcopies the exact table structure and data into another table specified in the INTOclause Usually, a SELECTquery

Ngày tải lên: 08/08/2014, 18:21

... moneyfrom the checking account and adding it to the savings account Both must succeedtogether and be committed to the accounts, or both must fail together and be rolled back so that the accounts ... the button Double-click button1, and itwill open the code editor with the button1_clickevent Insert the code in Listing 8-2 into the code editor Listing 8-2.button1_Click() SqlConnection conn = ... because, by default, the connection is in autocommit transaction mode If youwant no changes to be committed unless you explicitly indicate so, you need to set theconnection to implicit transaction

Ngày tải lên: 08/08/2014, 18:21

... String in the Connection Constructor In the ConnectionSql project, you created the connection and specified the connection string in separate steps Since you always have to specify a connection string, ... Add a C# Console Application project named ConnectionDisplay to the Chapter10solution 2. Rename Program.csto ConnectionDisplay.cs When prompted to rename all ences to Program, you can click either ... "; Trang 13// create connectionSqlConnection conn = new SqlConnection(connString);try {// open connectionconn.Open(); Console.WriteLine("Connection opened."); }catch (SqlException e) {//

Ngày tải lên: 08/08/2014, 18:21

... selectcompanyname,contactnamefrom customerswherecontactname like 'M%' "; // create connectionSqlConnection conn = new SqlConnection(connString); Trang 11try{// open connectionconn.Open();// create ... @"selectproductname,unitprice,unitsinstock,discontinuedfrom products "; // create connectionSqlConnection conn = new SqlConnection(connString);try {// open connectionconn.Open(); // create commandSqlCommand cmd = new SqlCommand(sql, ... selectcontactname,contacttitlefrom customerswherecontactname like 'M%' "; // create connectionSqlConnection conn = new SqlConnection(connString); try{conn.Open(); SqlCommand cmd = new SqlCommand(sql,

Ngày tải lên: 08/08/2014, 18:21

... Forms–based application by using Visual Studio. To create a Windows Forms–based application, you need to create a project of type Windows Application. To begin creating such a project, click File ➤ ... not accurate spine = 1.0423" 552 page count Books for professionals By professionals đ Beginning XML with C# 2008: From Novice to Professional Dear Reader, Modern software systems are becoming ... Novice to Professional cyan MaGenTa yelloW Black panTone 123 c Bipin Joshi Companion eBook Available THE APRESS ROADMAP Beginning XML with C# 2008 Beginning C# 2008 Illustrated C# 2008 Pro...

Ngày tải lên: 14/03/2014, 23:20

... specific connection object DbConnection conn = factory.CreateConnection(); // Set the connection string conn.ConnectionString = connectionString; // Create a database specific command object ... generic DbConnection reference: // Obtain a database specific connection object DbConnection conn = factory.CreateConnection(); So, in practice, the connection object will actually contain a SqlCommand ... <summary> /// Class contains generic data access functionality to be accessed from /// the business tier /// </summary> public static class GenericDataAccess { // static constructor static GenericDataAccess() ...

Ngày tải lên: 09/08/2014, 14:20