Introduction to Database Systems
... SELECT C.name FROM Students S, Takes T, Courses C WHERE S.name=“Mary” and S.ssn = T.ssn and T.cid = C.cid ...
... SELECT C.name FROM Students S, Takes T, Courses C WHERE S.name=“Mary” and S.ssn = T.ssn and T.cid = C.cid ...
What we`ve learnt
... Ownersphone query • Don’t need to create a new database for each new object • Database FADS is container for objects ...
... Ownersphone query • Don’t need to create a new database for each new object • Database FADS is container for objects ...
DATABASE ADMINISTRATOR III - DBA3
... ABCWUA Position Description DATABASE ADMINISTRATOR III Status APPROVED ...
... ABCWUA Position Description DATABASE ADMINISTRATOR III Status APPROVED ...
Building Applications using SQL Azure
... Maximum single database size is currently 10GB Includes: primary replica data, objects and indexes Does NOT include: logs, master database, system tables, server catalogs or additional replicas ...
... Maximum single database size is currently 10GB Includes: primary replica data, objects and indexes Does NOT include: logs, master database, system tables, server catalogs or additional replicas ...
I. Terminology
... 2. Indexed Files Any attribute can be extracted from the records in a primary file and used to build a new file whose purpose is to provide an index to the original file. First, the index is searched to find a specified value of an attribute such as an customer account number. Second, the disk a ...
... 2. Indexed Files Any attribute can be extracted from the records in a primary file and used to build a new file whose purpose is to provide an index to the original file. First, the index is searched to find a specified value of an attribute such as an customer account number. Second, the disk a ...
Facilities DB Application
... • Insert different facilities (like mattress, couch, etc) into different room • update data for each room when there is any change • Generate report for each room based on: ...
... • Insert different facilities (like mattress, couch, etc) into different room • update data for each room when there is any change • Generate report for each room based on: ...
Graph Databases
... • Collection of schemas, queries, tables and other objects. • It is formally referred as a set of related data and the way it is organized. • Access to these data is generally provided by a database management system. ...
... • Collection of schemas, queries, tables and other objects. • It is formally referred as a set of related data and the way it is organized. • Access to these data is generally provided by a database management system. ...
Database Security
... We can use a database view to enhance data security because... It can exclude sensitive attributes that should not be accessible to certain users A view can only be accessed by a single user ...
... We can use a database view to enhance data security because... It can exclude sensitive attributes that should not be accessible to certain users A view can only be accessed by a single user ...
Introducation to MS Access Basics
... Database: Collection of tables and queries Table (or relational table) Collection of records that share a common fundamental characteristic Record A record is composed of fields Query Set of instructions to a database “engine” to retrieve, sort and format returning data. “find me the # of ho ...
... Database: Collection of tables and queries Table (or relational table) Collection of records that share a common fundamental characteristic Record A record is composed of fields Query Set of instructions to a database “engine” to retrieve, sort and format returning data. “find me the # of ho ...
referential integrity
... • The DBMS handles the communication between users and the computer system through SQL • Different users can be shown different forms and reports, depending on what is needed for their department of the organisation, or their job • Special ‘views’ can be created so that users only see what they need ...
... • The DBMS handles the communication between users and the computer system through SQL • Different users can be shown different forms and reports, depending on what is needed for their department of the organisation, or their job • Special ‘views’ can be created so that users only see what they need ...
DATABASES AND DATABASE USERS
... Database management system (DBMS) • Collection of programs • Enables users to create and maintain a database • Allows multiple users and programs to access and manipulate the database concurrently • Provides protection against unauthorized access and manipulation • Provides means to evolve databas ...
... Database management system (DBMS) • Collection of programs • Enables users to create and maintain a database • Allows multiple users and programs to access and manipulate the database concurrently • Provides protection against unauthorized access and manipulation • Provides means to evolve databas ...
School of Computer Science - School of Computing and Information
... o Information capture and representation o Information privacy, integrity, security, and preservation o Scalability, and efficiency Database systems o History and motivation for database systems o Components of database systems o DBMS functions o Database architecture and data independence o Use of ...
... o Information capture and representation o Information privacy, integrity, security, and preservation o Scalability, and efficiency Database systems o History and motivation for database systems o Components of database systems o DBMS functions o Database architecture and data independence o Use of ...
A gentle Introduction to Computer Programming
... Database Architecture Centralized: Concentrates all organizational activity in one location. Disadvantages: When the central system crashes all the data are not available. ...
... Database Architecture Centralized: Concentrates all organizational activity in one location. Disadvantages: When the central system crashes all the data are not available. ...
MICROSOFT BUSINESS INTELLIGENCE
... levels of performance, security, integrity, and confidentiality. Database solutions developers design, develop, test, and support database objects including tables, queries, reports, and forms. They may also design and write customized software that communicates with one or more database management ...
... levels of performance, security, integrity, and confidentiality. Database solutions developers design, develop, test, and support database objects including tables, queries, reports, and forms. They may also design and write customized software that communicates with one or more database management ...
- TehraTechnologies
... Distributed Database Querying System ABSTRACT Aim: The project aims to develop an application which could query multiple heterogeneous Databases in a distributed fashion. The project would provide me familiarity with the RMI mechanism as implemented in Java. It will also give me an insight into some ...
... Distributed Database Querying System ABSTRACT Aim: The project aims to develop an application which could query multiple heterogeneous Databases in a distributed fashion. The project would provide me familiarity with the RMI mechanism as implemented in Java. It will also give me an insight into some ...
ADO.net
... of your database. It is disconnected from your database so any changes will not affect the database not until you port it back to the database using the Data Adapter as you will see later on. Dataset contains DataTable and DataTable contains DataRow and DataRow contains DataColumns (remember the ...
... of your database. It is disconnected from your database so any changes will not affect the database not until you port it back to the database using the Data Adapter as you will see later on. Dataset contains DataTable and DataTable contains DataRow and DataRow contains DataColumns (remember the ...
Basic Database Concepts - University of Manitoba
... The organization of data can be explained by metadata. Metadata define how data are organized (e.g., Employee is a class of data, which has x number of attributes, and each attribute belongs to a data type). More 2 of 15 ...
... The organization of data can be explained by metadata. Metadata define how data are organized (e.g., Employee is a class of data, which has x number of attributes, and each attribute belongs to a data type). More 2 of 15 ...
School of Computer Science - School of Computing and Information
... o Information capture and representation o Information privacy, integrity, security, and preservation o Scalability, and efficiency Database systems o History and motivation for database systems o Components of database systems o DBMS functions o Database architecture and data independence o Use of ...
... o Information capture and representation o Information privacy, integrity, security, and preservation o Scalability, and efficiency Database systems o History and motivation for database systems o Components of database systems o DBMS functions o Database architecture and data independence o Use of ...
Three Phases of DB Design
... American Airlines and IBM around the same time, and it allowed several people to access the same data through a computer network. In 1970, Edgar Codd, at IBM's San Jose Research Laboratory, proposed a new data representation framework called the relational data model. it sparked rapid development of ...
... American Airlines and IBM around the same time, and it allowed several people to access the same data through a computer network. In 1970, Edgar Codd, at IBM's San Jose Research Laboratory, proposed a new data representation framework called the relational data model. it sparked rapid development of ...
Database recovery techniques
... Allows changing data structures and data storage organization without having to change the DBMS access programs. Accomplished through data abstraction A data model is used to hide storage details and present the users with a conceptual view of the database. Programs refer to the data model construct ...
... Allows changing data structures and data storage organization without having to change the DBMS access programs. Accomplished through data abstraction A data model is used to hide storage details and present the users with a conceptual view of the database. Programs refer to the data model construct ...
Class Notes
... • 6 labs - 5% each and are marked all or nothing. Each week late looses 1 mark out of 5. ...
... • 6 labs - 5% each and are marked all or nothing. Each week late looses 1 mark out of 5. ...