sql data type char and varchar
Data Warehouse Architecture and Models
Ngày tải lên :
25/04/2013, 20:33
... 40,000
Mar 97 17,000
Types of Warehouse Data
Fact data - Measures
Dimension data - Query
drivers
Summary data - Pre-calculated
data
Lesson 4
Data Warehouse
Architecture and Models
Summary
Enterprise ... localized data marts
Recognize the difference between independent
and dependent data marts
Identify the data that is stored in a data
warehouse
Explain the features of each type of data by ...
Summary
Enterprise data warehouses
Data marts
Independent
Dependant
Warehouse data
Data models
Models compared
Objectives
Differentiate between an enterprise-wide data
warehouse and localized...
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Collecting Data — The Class and the Array
Ngày tải lên :
04/10/2013, 21:20
... Chapter 6
Collecting Data — The Class
and the Array
In This Chapter
ᮣ
Introducing the C# class
ᮣ
Storing data in an object
ᮣ
Assigning and using object references
ᮣ
Creating and building arrays ... references
ᮣ
Creating and building arrays of objects
Y
ou can freely declare and use all the intrinsic data types — such as
int
,
double
, and
bool
— to store the information necessary to make your
program ... related data in
a neat package.
Some programs need to bundle pieces of data that logically belong together
but aren’t of the same type. For example, a college enrollment application
handles students,...
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Data Models, Datasets, and the ADO.NET Interface
Ngày tải lên :
05/10/2013, 08:48
... Connection, command and other related objects
SqlConnection conReport = new SqlConnection(cnString);
SqlCommand cmdReport = new SqlCommand();
SqlDataReader drReport;
DataSet dsReport = new dsCreditLimit();
try
{
//open ... report information to viewer
rpvTypedDataset.LocalReport.ReportEmbeddedResource =
➥
"TypedDataset.rptTypedDatatset.rdlc";
CHAPTER 3
■
DATA MODELS, DATASETS, AND THE ADO.NET INTERFACE70
8547ch03final.qxd ... SqlConnection(cnString);
SqlCommand cmdReport = new SqlCommand();
SqlDataReader drReport;
DataSet dsReport = new dsCreditLimit();
The first line here is a connection string. The connection string tells the data...
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3 Using Data Guard Broker and Enterprise Manager
Ngày tải lên :
26/10/2013, 20:15
... Model
Data Guard Broker Configuration
Primary database
Broker-controlled
databases
Standby database
Standby database
Standby database
Standby database
Standby database
Standby database
Standby database
Standby ... standby
databases to replace the primary database and take
over production processing
ã
Helps you logically define and create a Data Guard
configuration consisting of a primary database and ... database
Standby database
Standby database
Standby database
Instances
Instances
Copyright â 2006, Oracle. All rights reserved.
3 - 7
Primary site
Standby site 9
Standby site 2
Data Guard Broker: Architecture
Graphical...
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Oracle Data Guard Concepts and Administration
Ngày tải lên :
26/10/2013, 22:15
... is applied to the standby database.
A standby database can be one of two types: a physical standby database or a
logical standby database. If needed, either type of standby database can assume ... in Standby Database D-5
D–3 Using Image Copies to Create a Standby Database: Scenario D-20
Standby Database Types
2-2 Oracle Data Guard Concepts and Administration
2.1.1 Physical Standby Databases
A ... Physical and Logical Standby Databases
■
New Features Specific to Physical Standby Databases
■
New Features Specific to Logical Standby Databases
New Features Common to Physical and Logical Standby Databases
The...
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Data Analysis, Statistics, and Probability
Ngày tải lên :
02/11/2013, 17:20
... 7x = (7)(4) = 28
green candies and 8x = (8)(4) = 32 red
candies.
Mean, Median, and Mode
To find the average or mean of a set of numbers, add all
of the numbers together and divide by the quantity ... special
attention to headings and units of measure. Here is an
overview of the types of graphs you will encounter:
■
Circle graphs or pie charts
This type of graph is representative of a whole
and is usually ... as less than and more than.
The product of x and 6 is greater than 2.
x ì 6 > 2
When 14 is added to a number x, the sum is
less than 21.
x + 14 < 21
The sum of a number x and four is at...
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Tài liệu Professional ADO.NET 2 Programming with SQL Server 2005, Oracle and MySQL (P2) ppt
Ngày tải lên :
12/12/2013, 21:16
... store data that has been retrieved.
❑ DataAdapter — The
DataAdapter
object is what bridges the gap between the
DataSet
and the
data source. The
DataAdapter
is responsible for retrieving the data ... also the
data type assigned to them. Only use what’s nessesary. If you’re storing smaller
numbers in SQL Server, use the tinyint or smallint data types instead of the int
data type.
17
Standardized ... the data from the
Command
object
and populating the
DataSet
with the data returned. The
DataAdapter
is also responsible for
persisting changes to the
DataSet
back to the data source.
ADO.NET...
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Tài liệu Professional ADO.NET 2 Programming with SQL Server 2005, Oracle and MySQL (P1) docx
Ngày tải lên :
12/12/2013, 21:16
... 107
TIMESTAMP 107
SQL_ VARIANT 107
UNIQUEIDENTIFIER 108
XML 108
TABLE and CURSOR 108
Data Types in ADO.NET and .NET 109
SqlTypes 109
Other Alternatives 113
Mapping SQL Server Data Types to .NET 114
Summary ... Data Types 97
Data Types in SQL Server 98
CHAR (CHARACTER) 98
VARCHAR (CHAR VARYING or CHARACTER VARYING) 98
TEXT and VARCHAR( MAX) 99
National Character Storage 99
INT (INTEGER) 99
BIGINT 100
SMALLINT ... Updated Data for Which the Chance of Collisions Is High 96
Getting One Value from a Database 96
Summary 96
For More Information 96
Chapter 4: Standard Data Types 97
Data Types in SQL Server 98
CHAR...
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