identifying data access requirements
Tài liệu Activity 9.4: Identifying Data Access Requirements ppt
Ngày tải lên :
21/12/2013, 06:16
... BLANK
74 Activity 9.4: Identifying Data Access Requirements
Exercise 1: Identifying a Data Access Method for a Scenario (10
minutes)
!
Identify data access requirements
1. Participate ... easy access in the future.
Solution
A
B
Activity 9.4: Identifying Data Access
Requirements
In this activity, you will first identify the optimal data access ... analyze the data access method selection in a
scenario.
Objectives
After completing this activity, you will be able to:
!
Identify the appropriate data access method for a given set of requirements...
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Tài liệu Activity 3.1: Identifying Data-Related Use Cases and Data Requirements docx
Ngày tải lên :
21/12/2013, 06:16
... Activity 3.1: Identifying Data- Related Use Cases and Data Requirements 9
Exercise 2:
Identifying Hidden Data Requirements
In this exercise, you will identify the hidden data requirements ...
of explicit data requirements.
!
Determine hidden data requirements
1. Refer to the use cases from the previous exercise.
2. Review the case study again, looking for hidden data requirements ... Cases and Data Requirements
In this activity, you will analyze a set of use cases derived from the Ferguson
and Bardell, Inc. case study and determine data requirements, hidden data
requirements, ...
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CÁC ĐỐI TƯỢNG TRUY CẬP DỮ LIỆU (DATA ACCESS OB
Ngày tải lên :
30/09/2013, 06:20
... OpenDatabase:
Set database = OpenDatabase (dbname, options, read-only, connect)
Ý nghĩa các tham số của phương thức OpenDatabase như sau:
Thành phần Ý nghĩa
database Biến kiểu đối tượng Database ... cơ sở dữ liệu.
II.1.1 Sử dụng phương thức OpenDatabase để tạo một đối tượng Database
Ta dùng phương thức OpenDatabase để cho phép một đối tượng Database
tham khảo đến một cơ sở dữ liệu cụ thể, ... trả về là một đối tượng Database, vì vậy trước khi sử dụ
ng phương thức này, ta
cần khai báo một đối tượng Database. Chẳng hạn như:
Dim db As Database
Set db = OpenDatabase(" \ \baigiang.mdb")
...
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Data Access Layer
Ngày tải lên :
03/10/2013, 01:20
...
CHAPTER 8 ■ DATA ACCESS LAYER
174
private void DisconnectFromDatabase()
{
if (_databaseConnection.State != ConnectionState.Open)
{
_databaseConnection.Close();
}
}
private IDataReader ... CreateUserFromReader(IDataReader dataReader)
{
int id = dataReader.GetInt32(0);
string name = dataReader.GetString(1);
string emailAddress = dataReader.GetString(2);
string password = dataReader.GetString(2); ... Listing 8–5).
Listing 8–5. Access a User by Name Using Both Syntaxes
DataContext dataContext = new DataContext(connection);
// LINQ style
var matchingUsers = from user in dataContext.Users
where...
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Data Access and Networking
Ngày tải lên :
05/10/2013, 03:20
... ■ DATA ACCESS AND NETWORKING
147
< ;data: DataGrid x:Name="grdData" Margin="15" AutoGenerateColumns="False">
< ;data: DataGrid.Columns>
< ;data: DataGridTemplateColumn ... to access data remotely. As noted earlier in chapter in the
section Data Access in Silverlight Applications”, this is one of the most common approaches to data
access with Silverlight.
Accessing ... Grid.Column="1" />
</Grid>
</DataTemplate>
< /data: DataGridTemplateColumn.CellTemplate>
< /data: DataGridTemplateColumn>
< ;data: DataGridTextColumn
Header="Nickname"...
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Introduction to Data Access
Ngày tải lên :
05/10/2013, 04:20
... java.sql.SQLException;
public class NewsletterSubscriptionDataAccess {
private DataSource dataSource;
public void setDataSource(DataSource dataSource) {
this.dataSource = dataSource;
}
public void addNewsletterSubscription(int ... NewsletterSubscriptionDataAccess subscriptionDataAccess;
public void subscribeMemberToNewsletter(Member member, String email)
throws MyDataAccessException {
subscriptionDataAccess.addNewsletterSubscription(member.getId(), ... cycle of data- access opera-
tions is any data- access code must be able to transparently work with and without database
transactions. Otherwise, you’re confronted with a leakage of data- access responsibilities....
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Data Access
Ngày tải lên :
05/10/2013, 10:20
... Description
System .Data. Common.DbDataAdapter This class is used to fill a DataSet class with data from a
relational database.
System .Data. DataSet An in-memory representation of a database that can
contain ... 223
system .data
windows
system.webServer
mscorlib
system .data. oledb
system .data. oracleclient
system .data. sqlclient
configProtectedData
satelliteassemblies
system .data. dataset
startup
system .data. odbc
system.diagnostics
runtime
system.codedom
system.runtime.remoting
connectionStrings
assemblyBinding
appSettings
system.windows.forms
This ... Microsoft.Practices.EnterpriseLibrary .Data
let opener commandString =
let database = DatabaseFactory.CreateDatabase()
database.ExecuteReader(CommandType.Text, commandString)
CHAPTER 9
■
DATA ACCESS
223
7575Ch09.qxp...
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Module 9: The Transactional Data Access Layer
Ngày tải lên :
05/11/2013, 12:15
... same data
access technologies as that of the nontransactional DAL. The following data
access technologies were covered in Module 8, “The Nontransactional Data
Access Layer”:
!
Microsoft Data ... modules that focus on the data access layer
(DAL). In Module 8, “The Nontransactional Data Access Layer,” you learned
about data retrieval. In this module, you will learn about data manipulation. ...
DAL: Module 8, “The Nontransactional Data Access Layer” and Module 9,
“The Transactional Data Access Layer.” The DAL is an application’s means of
access to data services.
After completing this...
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Tài liệu java Data Access JDBC, JNDI, and JAXP pptx
Ngày tải lên :
10/12/2013, 02:15
... and Data Types 110
Java−to−JDBC Data Type Mappings 111
JDBC−to−Java Data Type Mappings 114
Standard SQL data types 114
Advanced SQL data types 118
ii
Table of Contents
Chapter 17: Building Data centric ... protect against data loss or corruption. Relational databases are the most
•
Chapter 1: Introducing Java Data Access Development
4
Table of Contents
Part I: Getting Started with Java Data Access 1
Chapter ... Introducing Java Data Access Development 2
In This Chapter 2
Taking Stock of Enterprise Data Stores 2
Database systems 4
Naming and directory services 5
XML services 6
Introducing Java Data Access Technologies...
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Tài liệu Bài 6: Data Access and Viewingwith .NET docx
Ngày tải lên :
13/12/2013, 09:16
...
System .Data. SqlTypes
System .Data. SqlTypes
.
.
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System .Data
System .Data
:
:
DataSet
DataSet
,
,
DataTable
DataTable
,
,
DataRow
DataRow
,
,
DataColumn
DataColumn
,
,
DataRelation
DataRelation
, Constraint
, Constraint
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: ... Overview
Using Database Connections
Using Database Connections
Commands
Commands
Quick Data Access: The Data Reader
Quick Data Access: The Data Reader
Working with
Working with
DataSet
DataSet
Viewing ...
c
c
ủ
ủ
a
a
data set
data set
Data Access and Viewing with .NET
Data Access and Viewing with .NET
-
-
Editor:
Editor:
Đo
Đo
à
à
n Quang Minh
n Quang Minh
8
8
Quick Data Access: The Data...
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Tài liệu Java Data Access—JDBC, JNDI, and JAXP ppt
Ngày tải lên :
15/12/2013, 20:15
... Getting Started with Java Data Access 1
Chapter List 1
Chapter 1: Introducing Java Data Access Development 2
In This Chapter 2
Taking Stock of Enterprise Data Stores 2
Database systems 4
Naming ... against data loss or corruption. Relational databases are the most
•
Chapter 1: Introducing Java Data Access Development
4
JDBC 3.0, which provides support for accessing relational databases• ... Hierarchical databases provide fast
data retrieval, but slow write operations. Directory services often use hierarchical databases.
•
Network database — Similar to hierarchical databases except...
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Tài liệu Activity 9.3: Identifying Development Tool Requirements ppt
Ngày tải lên :
21/12/2013, 06:16
... for data
analysis. Massive statistical calculations will be necessary for each
data rendering.
Solution
A
B
Activity 9.3: Identifying Development Tool Requirements ... 70 Activity 9.3: Identifying Development Tool Requirements
Exercise 1: Identifying a Development Tool for a Scenario (10
minutes)
!
Identify ... implementation for a custom-designed order entry system for
the company. The system will be n-tier and data will be stored in SQL Server
™
.
There may be a need for a Web front end in the near future....
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Tài liệu Activity 9.5: Identifying Data Storage ppt
Ngày tải lên :
21/12/2013, 06:16
... BLANK
78 Activity 9.5: Identifying Data Storage Requirements
Exercise 1: Identifying a Data Storage Method for a Scenario (10
minutes)
!
Identify data storage requirements
1. Participate ... paramount.
B A 200-user data entry system. A high data- entry rate is required.
Solution
A
B
Activity 9.5: Identifying Data Storage Requirements 79
Exercise ... developed a proprietary engine for accessing schedule
information from flat files. Each text file is stored on a network share and has
between 10,000 and 200,000 rows of data. Each row is 512 characters...
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