Fundamentals of Database Systems
... application program (as opposed to interactive interfaces) An interactive interface is convenient but not sufficient; a majority of database operations are made thru application programs (nowadays thru web applications) ...
... application program (as opposed to interactive interfaces) An interactive interface is convenient but not sufficient; a majority of database operations are made thru application programs (nowadays thru web applications) ...
Database Applications
... Cursors: a mechanism for handling sets in languages which do not support these as fundamental types. ...
... Cursors: a mechanism for handling sets in languages which do not support these as fundamental types. ...
FROM Galaxy WHERE - Sloan Digital Sky Survey
... simple SQL-like language that implements the basic subset of clauses and functions necessary to formulate queries for an astronomy object database. There is no attempt to be OQL (Object Query Language) compliant, although we have borrowed some concepts from OQL. SXQL recognizes the SELECT-FROM-WHERE ...
... simple SQL-like language that implements the basic subset of clauses and functions necessary to formulate queries for an astronomy object database. There is no attempt to be OQL (Object Query Language) compliant, although we have borrowed some concepts from OQL. SXQL recognizes the SELECT-FROM-WHERE ...
Optimizing select-project
... MovieStar(‘Kevin Bacon’, x, y, 1960). Here, x and y are variables, and ‘Kevin Bacon’ and 1960 are constants. A conjunctive query consists of a head and a body: • The body is a finite set of atoms. These atoms in the body are sometimes also called subgoals. • The head is a finite tuple of variables. ...
... MovieStar(‘Kevin Bacon’, x, y, 1960). Here, x and y are variables, and ‘Kevin Bacon’ and 1960 are constants. A conjunctive query consists of a head and a body: • The body is a finite set of atoms. These atoms in the body are sometimes also called subgoals. • The head is a finite tuple of variables. ...
Spatial Query Languages - Spatial Database Group
... What is SQL? SQL - General Information is a standard query language for relational databases It support logical data model concepts, such as relations, keys, ... Supported by major brands, e.g. IBM DB2, Oracle, MS SQL Server, Sybase, ... 3 versions: SQL1 (1986), SQL2 (1992), SQL 3 (1999) Can expres ...
... What is SQL? SQL - General Information is a standard query language for relational databases It support logical data model concepts, such as relations, keys, ... Supported by major brands, e.g. IBM DB2, Oracle, MS SQL Server, Sybase, ... 3 versions: SQL1 (1986), SQL2 (1992), SQL 3 (1999) Can expres ...
Data Integration in Digital Libraries
... that is to be integrated might model the world in its own way. The representation of data of the similar semantics might be quite different in each data source. For example, each might be using different naming conventions to refer to the same real world object. Moreover, they may contain conflictin ...
... that is to be integrated might model the world in its own way. The representation of data of the similar semantics might be quite different in each data source. For example, each might be using different naming conventions to refer to the same real world object. Moreover, they may contain conflictin ...
Corporate PPT Template - Oracle Software Downloads
... the energy and power fields the public services sector. ...
... the energy and power fields the public services sector. ...
powerpoint slides
... What is SQL? SQL - General Information is a standard query language for relational databases It support logical data model concepts, such as relations, keys, ... Supported by major brands, e.g. IBM DB2, Oracle, MS SQL Server, Sybase, ... 3 versions: SQL1 (1986), SQL2 (1992), SQL 3 (1999) Can expres ...
... What is SQL? SQL - General Information is a standard query language for relational databases It support logical data model concepts, such as relations, keys, ... Supported by major brands, e.g. IBM DB2, Oracle, MS SQL Server, Sybase, ... 3 versions: SQL1 (1986), SQL2 (1992), SQL 3 (1999) Can expres ...
Multi-user Databases
... • A transaction consists of a series of steps. Each step must be successful for the transaction to be saved. • This ensures that the transaction completes everything it intended to do before saving the changes. ...
... • A transaction consists of a series of steps. Each step must be successful for the transaction to be saved. • This ensures that the transaction completes everything it intended to do before saving the changes. ...
Kroenke-DBP-e10-PPT-Chapter12
... Open Database Connectivity (OBDC) • The Open Database Connectivity (ODBC) standard provides a DBMS-independent means for processing relational database data. • It was developed in the early 1990s by an industry committee and has been implemented by Microsoft and many other vendors. • The goal is to ...
... Open Database Connectivity (OBDC) • The Open Database Connectivity (ODBC) standard provides a DBMS-independent means for processing relational database data. • It was developed in the early 1990s by an industry committee and has been implemented by Microsoft and many other vendors. • The goal is to ...
EASTERN ARIZONA COLLEGE Database Design and Development
... 3. Those seeking an understanding of relational database concepts and Structured Query Language (SQL). 4. Other individuals with an interest in gaining move advanced knowledge of databases. Description This course is designed to provide individuals with a complete introduction to database concepts a ...
... 3. Those seeking an understanding of relational database concepts and Structured Query Language (SQL). 4. Other individuals with an interest in gaining move advanced knowledge of databases. Description This course is designed to provide individuals with a complete introduction to database concepts a ...
Persistence in OODBs
... For example a persistent system may require the programmer to mark which objects are to be persistent. This: Should minimise the storage requirements, by only storing objects that the programmer has explicitly told to be stored. Is trickier for the programmer as they have to decide what to put i ...
... For example a persistent system may require the programmer to mark which objects are to be persistent. This: Should minimise the storage requirements, by only storing objects that the programmer has explicitly told to be stored. Is trickier for the programmer as they have to decide what to put i ...
stars - Department of Computer Science and Information Systems
... However, larger-scale applications may need to integrate information from several databases, possibly supporting different data models To integrate information stored in such heterogeneous databases it is necessary to form a single, integrated schema Conflicts may existing between the various ...
... However, larger-scale applications may need to integrate information from several databases, possibly supporting different data models To integrate information stored in such heterogeneous databases it is necessary to form a single, integrated schema Conflicts may existing between the various ...
Object Tables
... Copy data (INSERT INTO SELECT * ....) If copied data contains REFS, create cross reference table of old REF, new REF and PK of object Swap the old REFs for the new REFs in the new data ...
... Copy data (INSERT INTO SELECT * ....) If copied data contains REFS, create cross reference table of old REF, new REF and PK of object Swap the old REFs for the new REFs in the new data ...
Users and Basic Security
... a default permanent tablespace of SYSTEM • All of your users should have a temporary tablespace of ...
... a default permanent tablespace of SYSTEM • All of your users should have a temporary tablespace of ...
Accelerating Database Operators Using a Network Processor
... we desire independent threads that do not require synchronization. Where synchronization is required, we place these threads on the same microengine, wherever possible. The non-preemptive programming model means no explicit synchronization is required between threads on a single microengine. Only on ...
... we desire independent threads that do not require synchronization. Where synchronization is required, we place these threads on the same microengine, wherever possible. The non-preemptive programming model means no explicit synchronization is required between threads on a single microengine. Only on ...
Database Design
... • Overall view of the database that integrates all the needed information discovered during the requirements analysis • Elements of the Conceptual Model are represented by diagrams, Entity-Relationship or ER Diagrams, that show the meanings and relationships of those elements independent of any part ...
... • Overall view of the database that integrates all the needed information discovered during the requirements analysis • Elements of the Conceptual Model are represented by diagrams, Entity-Relationship or ER Diagrams, that show the meanings and relationships of those elements independent of any part ...
lesson14
... Ownership Chain • In the physical world, people own objects, with which they can do as they please, including lending or giving them to others. • SQL Server understands this concept of ownership. When users create an object, they own that object and can do whatever they want with it. • This works w ...
... Ownership Chain • In the physical world, people own objects, with which they can do as they please, including lending or giving them to others. • SQL Server understands this concept of ownership. When users create an object, they own that object and can do whatever they want with it. • This works w ...
Occasionally Connected Smart Clients
... availability Application proactively retrieves necessary data necessary to work offline As the network comes available, the application will automatically sync their work and log conflicts for the user to resolve Network operations occur in the background so the user can stay focused on their task E ...
... availability Application proactively retrieves necessary data necessary to work offline As the network comes available, the application will automatically sync their work and log conflicts for the user to resolve Network operations occur in the background so the user can stay focused on their task E ...
Concurrent Control
... interleaved operations from other transactions. • Nonserial Schedule: The operations from a set of concurrent transactions are interleaved. – Maximizing database availability ...
... interleaved operations from other transactions. • Nonserial Schedule: The operations from a set of concurrent transactions are interleaved. – Maximizing database availability ...
Lecture07a
... The book Database System Concepts (4th Edition) by Silberschatz, Korth, and Sudarshan devotes an entire chapter (chapter 19) to Distributed Databases In part 1 of my lecture, I will use slides extracted from the set of slides provided with the book. ...
... The book Database System Concepts (4th Edition) by Silberschatz, Korth, and Sudarshan devotes an entire chapter (chapter 19) to Distributed Databases In part 1 of my lecture, I will use slides extracted from the set of slides provided with the book. ...
Document
... Record is a collection of related variables File is a collection of related records Sequential files contains records that are stored and processed in sequential order Random access files are organized so you can access a record by specifying its record number Database is one or more files ...
... Record is a collection of related variables File is a collection of related records Sequential files contains records that are stored and processed in sequential order Random access files are organized so you can access a record by specifying its record number Database is one or more files ...
Database model
A database model is a type of data model that determines the logical structure of a database and fundamentally determines in which manner data can be stored, organized, and manipulated. The most popular example of a database model is the relational model, which uses a table-based format.