how to make barcode in vb.net 2010 John P. Smith 002 in Software

Generate QR-Code in Software John P. Smith 002

John P. Smith 002
QR Code JIS X 0510 Reader In None
Using Barcode Control SDK for Software Control to generate, create, read, scan barcode image in Software applications.
Draw QR-Code In None
Using Barcode maker for Software Control to generate, create Denso QR Bar Code image in Software applications.
John P. Smith John P. Smith Smith, John P.
QR Scanner In None
Using Barcode decoder for Software Control to read, scan read, scan image in Software applications.
QR-Code Generator In Visual C#
Using Barcode generation for .NET Control to generate, create QR Code JIS X 0510 image in .NET framework applications.
N 01-701
QR Code 2d Barcode Creator In .NET
Using Barcode encoder for ASP.NET Control to generate, create QR Code JIS X 0510 image in ASP.NET applications.
Denso QR Bar Code Creator In Visual Studio .NET
Using Barcode generation for Visual Studio .NET Control to generate, create Denso QR Bar Code image in .NET framework applications.
002 indirect
Paint QR Code In VB.NET
Using Barcode creation for .NET framework Control to generate, create Denso QR Bar Code image in .NET applications.
UCC-128 Creation In None
Using Barcode creation for Software Control to generate, create EAN / UCC - 13 image in Software applications.
Not Credit Order
Encode Data Matrix In None
Using Barcode creation for Software Control to generate, create Data Matrix image in Software applications.
Draw GTIN - 13 In None
Using Barcode drawer for Software Control to generate, create EAN-13 image in Software applications.
07-701 07 701 United States East
Barcode Maker In None
Using Barcode creation for Software Control to generate, create bar code image in Software applications.
UPC Code Generator In None
Using Barcode drawer for Software Control to generate, create UCC - 12 image in Software applications.
Figure 3-2
Encode 2 Of 5 Interleaved In None
Using Barcode printer for Software Control to generate, create USS ITF 2/5 image in Software applications.
Print Data Matrix ECC200 In .NET Framework
Using Barcode creation for .NET Control to generate, create Data Matrix 2d barcode image in VS .NET applications.
Constructing a rich set of dimension attributes
Encode UPC Symbol In None
Using Barcode printer for Font Control to generate, create UPC A image in Font applications.
Encode Bar Code In Objective-C
Using Barcode generator for iPad Control to generate, create barcode image in iPad applications.
Part I
Bar Code Drawer In Java
Using Barcode encoder for BIRT reports Control to generate, create barcode image in BIRT applications.
Generating UCC.EAN - 128 In None
Using Barcode printer for Office Excel Control to generate, create UCC-128 image in Microsoft Excel applications.
PART I Fundamentals
Encode ECC200 In Objective-C
Using Barcode printer for iPhone Control to generate, create Data Matrix image in iPhone applications.
ECC200 Generator In .NET
Using Barcode creator for Reporting Service Control to generate, create Data Matrix 2d barcode image in Reporting Service applications.
design, it is easy to use them to organize data, sort reports, order data, and so forth. Since they are not calculated in queries, it is possible for database administrators to index these columns, providing for efficient query performance.
Codes and Descriptions
In operational systems, it is common for the list of appropriate values in a domain to be described using codes. Elsewhere, a separate table is used to provide the corresponding descriptions. Often called reference values or lookup values, these descriptions may be more useful than the codes themselves. For example, a source table that stores order information might capture the type of customer. Rather than store various values, such as Direct, Indirect, or Other, the table only stores codes such as 001, 002, or 003. A separate reference table maps these codes to the description values. This facilitates maintenance of the appropriate list of values and streamlines storage. From an analytic perspective, both the code and description are useful dimensions. For example, Figure 3-2 shows a type_code of 002 transformed into a pair of attributes in the dimensional design: one for the code and one for the description. Because the dimension table carries both, users are able to filter, access, and organize information in whatever way they see fit.
Flags and Their Values
Columns whose values are Boolean in nature are usually referred to as flags. In an operational system, these values may be stored in several ways. One method uses a column with a Boolean data type. Another method uses an integer, which will contain only the values 0 or 1, or a character, which will contain only the values Y or N. Some systems employ a special case of a code with two possible values: one indicating True and the other indicating False. In Figure 3-2, the source column credit_order_flag contains a Y for credit orders and an N for noncredit orders. In a dimensional design, these flags may be used to filter queries or group facts. By storing a descriptive value for the flag, we make using the flag easier. For example, a report can break up orders into Credit Order and Not Credit Order categories. These descriptors are far more useful than 0/1 or Y/N, and can also be used less ambiguously when defining a query predicate or filter.
Multiple-Part Columns
Operational systems often contain attributes that have multiple parts, each part bearing some sort of significance. Account codes are a common example, made up of parts such as a company identifier, account code, subaccount code, and so forth. In a dimensional design, the entire attribute may be stored, along with additional attributes that isolate its constituent parts. If these subcomponents are codes, they may also be accompanied by corresponding description values. In Figure 3-2, the operational system records a region code in the format XX-YYY. The first part of this code designates a country, and the second part designates a territory within that country. The value 07-701, for example, contains country code 07 and territory code 701, which correspond to the United States and East, respectively. The dimensional design contains the full code, as well as the constituent codes and their corresponding descriptions.
3 Stars and Cubes 35
Dimensions with Numeric Values
While the majority of dimensions contain data that is textual, sometimes dimensions contain numeric data. Given that facts tend to be numeric, this can occasionally lead to confusion. Application of the tests described in 1 will allow you to sort out dimensions from facts. You have already seen examples of dimensions that contain numeric data. In Figure 3-2, for example, numeric content may be found in customer_type_code, country_code, and territory_code. Other common examples of numeric data elements are sizes, telephone numbers, and Zip codes. All of these examples are clearly dimensions. They will be used to provide context for facts, to order data, to control aggregation, or to filter query results. Some numeric attributes are less easy to identify as dimensions. For example, the unit price associated with an order is numeric. If 100 widgets are sold at $10 apiece, is the $10 unit price a fact or a dimension Recall from 1 that if an attribute is commonly aggregated or summarized, it is a fact. If it is used to drive aggregations or summarizations, however, it is a dimension. In the case of a unit price, it is not useful to sum unit prices across multiple orders. On the other hand, it is useful to group orders by unit price, perhaps to answer the question, How many did I sell at $10 each versus $12 each The unit price is, therefore, behaving as a dimension. TIP It is not always clear whether a numeric data element is a fact or a dimension. When in doubt, pay close attention to how it will be used. If the element values are used to filter queries, order data, control aggregation, or drive master detail relationships, it is most likely a dimension. While unit amounts are dimensions, extended amounts are facts. As you will see later in this chapter, multiplying a unit amount by the transaction quantity produces a value that can be aggregated or summarized. The unit amount is a useful dimension, and the extended amount is a useful fact. Both have their place in the dimensional design.
Copyright © OnBarcode.com . All rights reserved.