May 29, 2001
... • A dynamic user view can be generated using XSL, but should be “wrapped” by a main user interface frame. • For security/platform neutrality/mobility issues, more investigation into XML-related specifications like SOAP, WML is needed. • Two types of client systems to handle different functionality: ...
... • A dynamic user view can be generated using XSL, but should be “wrapped” by a main user interface frame. • For security/platform neutrality/mobility issues, more investigation into XML-related specifications like SOAP, WML is needed. • Two types of client systems to handle different functionality: ...
Remembering the Past With Organizational Memory
... • An entry at the intersection of each row and column is single-valued • Entries in columns are from the same domain and relate to the same attribute …name, address • Each row is unique and has a unique key. • The sequence of columns is insignificant. • The sequence of rows is insignificant. ...
... • An entry at the intersection of each row and column is single-valued • Entries in columns are from the same domain and relate to the same attribute …name, address • Each row is unique and has a unique key. • The sequence of columns is insignificant. • The sequence of rows is insignificant. ...
Multi-Dimensional Databases
... source data and dimensional data, in fact usually one source will create multiple dimensions or multiple source data will create one dimension. Every fact should have a default aggregation. Even if that aggregation is No Aggregation. ...
... source data and dimensional data, in fact usually one source will create multiple dimensions or multiple source data will create one dimension. Every fact should have a default aggregation. Even if that aggregation is No Aggregation. ...
week10
... • The view displays like any table and the data you see is the actual data in the table(s). • A view is more for viewing rather than updating since an update could disqualify a record from the view. • Updates made to a view are made to the table(s) and any changes made to the table(s) are reflected ...
... • The view displays like any table and the data you see is the actual data in the table(s). • A view is more for viewing rather than updating since an update could disqualify a record from the view. • Updates made to a view are made to the table(s) and any changes made to the table(s) are reflected ...
Data Management (Part 1)
... • Three classic data models used to organize electronic databases Hierarchical – data are organized by records on a parent-child one-to-many ...
... • Three classic data models used to organize electronic databases Hierarchical – data are organized by records on a parent-child one-to-many ...
Relational Data Analysis
... • A Join Combines Two Tables into One Virtual Table • Tables are Joined Together Based on a Common Value in a Field • The Field That the Two Tables are Joined on Must be the Same Type ...
... • A Join Combines Two Tables into One Virtual Table • Tables are Joined Together Based on a Common Value in a Field • The Field That the Two Tables are Joined on Must be the Same Type ...
Wrapping Relational Data Model to Object
... SOFSEM-SRF 2006, January 21-26, Merin, Czech Republic ...
... SOFSEM-SRF 2006, January 21-26, Merin, Czech Republic ...
Attribute Data Models
... • A database is a collection of data files that is structured (organized) to facilitate data storage, manipulation, and retrieval. • A database management system (DBMS) is a software package that performs these database functions ...
... • A database is a collection of data files that is structured (organized) to facilitate data storage, manipulation, and retrieval. • A database management system (DBMS) is a software package that performs these database functions ...
AliEn in Oracle - Indico
... ◦ Reserved words: SIZE and TIMESTAMP are used as names for fields, but are reserved words for Oracle ◦ Autoincrement, only in MySQL. ◦ Implementation of user defined functions ...
... ◦ Reserved words: SIZE and TIMESTAMP are used as names for fields, but are reserved words for Oracle ◦ Autoincrement, only in MySQL. ◦ Implementation of user defined functions ...
1 ER Modeling 2 Relational Model
... To create a database, log into your NETHZ account at https://password.ethz.ch and go to the My Services tab. Here you can select mySQL (see Figure 1). On the next page you have to set a password for your database. After the database has been created, write down the hostname of the database server (e ...
... To create a database, log into your NETHZ account at https://password.ethz.ch and go to the My Services tab. Here you can select mySQL (see Figure 1). On the next page you have to set a password for your database. After the database has been created, write down the hostname of the database server (e ...
Powerpoint
... They gather related information from Linked-In, Facebook etc. SQL Server uses the machine name and port 1433 on default installation ...
... They gather related information from Linked-In, Facebook etc. SQL Server uses the machine name and port 1433 on default installation ...
Chapter 8- Databases Basics
... What do the following things have in common: an address book, a telephone directory, a list of family birthdays, and a catalog of DVDs? For one thing, each can be stored in a database, or an organized collection of information. Databases can exist on paper or on a computer. Computerized databases ca ...
... What do the following things have in common: an address book, a telephone directory, a list of family birthdays, and a catalog of DVDs? For one thing, each can be stored in a database, or an organized collection of information. Databases can exist on paper or on a computer. Computerized databases ca ...
The relational model
... Integrity rules Entity integrity No component of the primary key of a relation can be null Each row in a relation is uniquely identified ...
... Integrity rules Entity integrity No component of the primary key of a relation can be null Each row in a relation is uniquely identified ...
Messaging Framework - Microsoft Center
... We don’t know much about using the cloud, it’s probably complicated and what we are doing now works. ...
... We don’t know much about using the cloud, it’s probably complicated and what we are doing now works. ...
CIS 321 Data Communications & Networking
... Used to store electronic information Referred to as secondary storage ...
... Used to store electronic information Referred to as secondary storage ...
CS206 --- Electronic Commerce
... The bar and beer together are the key for Sells: CREATE TABLE Sells ( bar CHAR(20), beer ...
... The bar and beer together are the key for Sells: CREATE TABLE Sells ( bar CHAR(20), beer ...
Data Source
... • Choose any tables, views, stored procedures, functions available from database • Can expand nodes and just choose columns • Can also enter the name you want to use for the dataset • Default: databasename + “DataSet” ...
... • Choose any tables, views, stored procedures, functions available from database • Can expand nodes and just choose columns • Can also enter the name you want to use for the dataset • Default: databasename + “DataSet” ...
Microsoft Access is a program to create and manage your databases
... Datatypes:Datatypes are the properties of each field. A field only has 1 datatype. Primary keys are one or more fields (columns) whose value or values uniquely identify each record in a table. A primary key does not allow Null values and must always have a unique value. After you've set up multiple ...
... Datatypes:Datatypes are the properties of each field. A field only has 1 datatype. Primary keys are one or more fields (columns) whose value or values uniquely identify each record in a table. A primary key does not allow Null values and must always have a unique value. After you've set up multiple ...
Comparison
... data such as EKGs and EEGs; persistence, secondary storage management; concurrency; recovery & ad hoc query facilities; when using OOP, ...
... data such as EKGs and EEGs; persistence, secondary storage management; concurrency; recovery & ad hoc query facilities; when using OOP, ...
Databases and Tools for Structured Data - WebLearn
... attended. Relational databases cater for one-to-many relationships, or even many-to-many. Relational databases can be designed to enable quite complex cross-searching, for instance, listing all the books published by authors who attended a particular university during a given period. Searches of dat ...
... attended. Relational databases cater for one-to-many relationships, or even many-to-many. Relational databases can be designed to enable quite complex cross-searching, for instance, listing all the books published by authors who attended a particular university during a given period. Searches of dat ...
Database Languages - Vrije Universiteit Brussel
... To determine the file organizations and access methods that will be used to store the base relations : that is, the way in which relations and tuples will be held on secondary storage. ...
... To determine the file organizations and access methods that will be used to store the base relations : that is, the way in which relations and tuples will be held on secondary storage. ...
Taming the Big Data Fire Hose
... Database should be easily and quickly recoverable in the event of severe hardware failures Database should be able to automatically detect and manage a variety of partition fault conditions Downed nodes should be “rejoinable” without the need for service windows VoltDB ...
... Database should be easily and quickly recoverable in the event of severe hardware failures Database should be able to automatically detect and manage a variety of partition fault conditions Downed nodes should be “rejoinable” without the need for service windows VoltDB ...