sql data type char and varchar
Data Warehouse Architecture and Models
... 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...
Ngày tải lên: 25/04/2013, 20:33
Collecting Data — The Class and the Array
... 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,...
Ngày tải lên: 04/10/2013, 21:20
Data Models, Datasets, and the ADO.NET Interface
... 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...
Ngày tải lên: 05/10/2013, 08:48
3 Using Data Guard Broker and Enterprise Manager
... 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...
Ngày tải lên: 26/10/2013, 20:15
Oracle Data Guard Concepts and Administration
... 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...
Ngày tải lên: 26/10/2013, 22:15
Data Analysis, Statistics, and Probability
... 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...
Ngày tải lên: 02/11/2013, 17:20
Tài liệu Professional ADO.NET 2 Programming with SQL Server 2005, Oracle and MySQL (P2) ppt
... 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...
Ngày tải lên: 12/12/2013, 21:16
Tài liệu Professional ADO.NET 2 Programming with SQL Server 2005, Oracle and MySQL (P1) docx
... 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...
Ngày tải lên: 12/12/2013, 21:16
