Kedem`s transparencies
... NYU had to spend considerable effort to switch from social security numbers to University ID’s We will discuss how to “anticipate” such problems, so such switching is painless ...
... NYU had to spend considerable effort to switch from social security numbers to University ID’s We will discuss how to “anticipate” such problems, so such switching is painless ...
Partial Database Availability
... Individual databases can be taken online/offline and maintained without application downtime ...
... Individual databases can be taken online/offline and maintained without application downtime ...
Abstract - The number of open source database management
... assessment of database systems. Considering the number of database performance assessment benchmarks available, it is quite a daunting task to subject each database system under consideration to all the available benchmark tests and tools and then make a comparison of the results. [2, 3, 4, 5, 6]. S ...
... assessment of database systems. Considering the number of database performance assessment benchmarks available, it is quite a daunting task to subject each database system under consideration to all the available benchmark tests and tools and then make a comparison of the results. [2, 3, 4, 5, 6]. S ...
SYSTEM BUS - EazyNotes
... caused by human error, say, or a failure in the hardware or supporting operating system – it is essential to be able to repair the data concerned with a minimum of delay and with as little effect as possible on the rest of the system. ...
... caused by human error, say, or a failure in the hardware or supporting operating system – it is essential to be able to repair the data concerned with a minimum of delay and with as little effect as possible on the rest of the system. ...
ENCh01 - Department of Computer Engineering
... use and monitoring efficiency of operations. – Database Designers: responsible to define the content, the structure, the constraints, and functions or transactions against the database. They must communicate with the end-users and ...
... use and monitoring efficiency of operations. – Database Designers: responsible to define the content, the structure, the constraints, and functions or transactions against the database. They must communicate with the end-users and ...
Spatial databases 5
... in geographical data the positions of objects establish an implied order which is important in many operations often need to work with objects that are adjacent in space, thus it helps to have these objects adjacent or close in the database is a problem with standard database systems since the ...
... in geographical data the positions of objects establish an implied order which is important in many operations often need to work with objects that are adjacent in space, thus it helps to have these objects adjacent or close in the database is a problem with standard database systems since the ...
Database Management System - Fordham University Computer and
... Users can specify some simple integrity constraints on the data, and the DBMS will enforce these constraints. Beyond this, the DBMS does not really understand the semantics of the data. (e.g., it does not understand how the interest on a bank account is computed). Thus, ensuring that a transaction ( ...
... Users can specify some simple integrity constraints on the data, and the DBMS will enforce these constraints. Beyond this, the DBMS does not really understand the semantics of the data. (e.g., it does not understand how the interest on a bank account is computed). Thus, ensuring that a transaction ( ...
Maintenance
... then it is best to leave significant free space at the end of each page so that related data stays together • If database is composed of data that is read more often than being written (OLAP) such as a report server then leave lower percentage of page space free. ...
... then it is best to leave significant free space at the end of each page so that related data stays together • If database is composed of data that is read more often than being written (OLAP) such as a report server then leave lower percentage of page space free. ...
Chapter 1 - Course categories
... Those who actually use and control the database content, and those who design, develop and maintain database applications (called “Actors on the Scene”), and Those who design and develop the DBMS software and related tools, and the computer systems operators (called “Workers Behind the ...
... Those who actually use and control the database content, and those who design, develop and maintain database applications (called “Actors on the Scene”), and Those who design and develop the DBMS software and related tools, and the computer systems operators (called “Workers Behind the ...
Why not use Federated approach for Database Management
... existing systems have been designed for different corporate needs, the resulting enterprise will have to face information inconsistency, heterogeneity and incompatible overlap”. Wijegunartne, Fernandez and Vltoudis in [1] “…a large modern enterprise, it is also inevitable that …use different datab ...
... existing systems have been designed for different corporate needs, the resulting enterprise will have to face information inconsistency, heterogeneity and incompatible overlap”. Wijegunartne, Fernandez and Vltoudis in [1] “…a large modern enterprise, it is also inevitable that …use different datab ...
Kroenke-Auer-DBP-e13-PPT
... – No lock is released until the COMMIT or ROLLBACK command is issued. – This strategy is more restrictive but easier to implement than two-phase locking. KROENKE AND AUER - DATABASE PROCESSING, 13th Edition © 2014 Pearson Education, Inc. ...
... – No lock is released until the COMMIT or ROLLBACK command is issued. – This strategy is more restrictive but easier to implement than two-phase locking. KROENKE AND AUER - DATABASE PROCESSING, 13th Edition © 2014 Pearson Education, Inc. ...
- Lotus Live Projects
... area. In this paper, we focus on a well known graph-based model - the Ranking on Data Manifold model, or Manifold Ranking (MR). Particularly, it has been successfully applied to content-based image retrieval, because of its outstanding ability to discover underlying geometrical structure of the give ...
... area. In this paper, we focus on a well known graph-based model - the Ranking on Data Manifold model, or Manifold Ranking (MR). Particularly, it has been successfully applied to content-based image retrieval, because of its outstanding ability to discover underlying geometrical structure of the give ...
Databases and Database Users
... – if database systems applications are not implemented properly – use regular files under the following circumstances: • The database and applications are simple, well defined, and not expected to change. • There are stringent real-time requirements for some programs that may not be met because of D ...
... – if database systems applications are not implemented properly – use regular files under the following circumstances: • The database and applications are simple, well defined, and not expected to change. • There are stringent real-time requirements for some programs that may not be met because of D ...
MicroStrategy Connectivity
... DSNs listed will list local machine DSNs and all other DSNs recorded in Metadata. In a 3 tier environment, DSN may or may not actually be a DSN on a local machine. There’s unlimited number of Database Logins that can be created, this functionality is needed for advanced administration and monitoring ...
... DSNs listed will list local machine DSNs and all other DSNs recorded in Metadata. In a 3 tier environment, DSN may or may not actually be a DSN on a local machine. There’s unlimited number of Database Logins that can be created, this functionality is needed for advanced administration and monitoring ...
3_concurrency
... • No waiting: if T can’t get lock immediately, abort T. No deadlock – why ? Problem ? • Leads to lots of T getting aborted, better • Cautious waiting: Ti wants lock, Tj has lock. if Tj blocked then ...
... • No waiting: if T can’t get lock immediately, abort T. No deadlock – why ? Problem ? • Leads to lots of T getting aborted, better • Cautious waiting: Ti wants lock, Tj has lock. if Tj blocked then ...
Oracle9i Database Performance Tuning
... productivity and maximizing the performance of your Oracle database are critical to success. Learn from the experts the value of intelligent database design and methods for tuning an Oracle database for maximum performance. This course will introduce participants to the importance of good initial da ...
... productivity and maximizing the performance of your Oracle database are critical to success. Learn from the experts the value of intelligent database design and methods for tuning an Oracle database for maximum performance. This course will introduce participants to the importance of good initial da ...
Database
... • Attribute, field, or column: characteristic or property of an entity • Relationship: an association between entities ...
... • Attribute, field, or column: characteristic or property of an entity • Relationship: an association between entities ...
Java Database Connectivity JDBC Architecture JDBC - CS
... PreparedStatement pstmt = con.prepareStatement("update BankAccount set amount = amount + ? where accountId = ?"); ...
... PreparedStatement pstmt = con.prepareStatement("update BankAccount set amount = amount + ? where accountId = ?"); ...
Database Development Concepts
... oriented problems and databases to help solve these problems The next step is to turn these models into real databases Relational models give us relational schemas,… From these we can create the actual data base ...
... oriented problems and databases to help solve these problems The next step is to turn these models into real databases Relational models give us relational schemas,… From these we can create the actual data base ...
Distributed Databases
... The originating site collects the messages from all sites. If all are “OK,” it broadcasts a message to all sites to commit the portion of the transaction handled at each site. If one or more responses are “not OK,” it broadcasts a message to all sites to abort the transaction. If the transacti ...
... The originating site collects the messages from all sites. If all are “OK,” it broadcasts a message to all sites to commit the portion of the transaction handled at each site. If one or more responses are “not OK,” it broadcasts a message to all sites to abort the transaction. If the transacti ...
Ch1
... extracted from databases, and allow user interaction with databases by typing in form boxes. Script programming languages such as PHP and JavaScript allow generation of dynamic Web pages (see Ch. 14), and provide for user querying of databases by typing selection keywords (e.g. flight ...
... extracted from databases, and allow user interaction with databases by typing in form boxes. Script programming languages such as PHP and JavaScript allow generation of dynamic Web pages (see Ch. 14), and provide for user querying of databases by typing selection keywords (e.g. flight ...
Database
... A database management system or DBMS consists of a group of programs that manipulate the data within a database. It provides an interface between the database and the user, or the database and application programs. ...
... A database management system or DBMS consists of a group of programs that manipulate the data within a database. It provides an interface between the database and the user, or the database and application programs. ...
ProgrammingMSSQL2012
... • Returns number of rows available for the last cursor that was opened on this connection • Returns -1 if cursor is dynamic ...
... • Returns number of rows available for the last cursor that was opened on this connection • Returns -1 if cursor is dynamic ...
Relational Database Design
... • What normalization is and what role it plays in database design • About the normal forms 1NF, 2NF, 3NF, BCNF, and 4NF • How normal forms can be transformed from lower normal forms to higher normal forms • That normalization and E-R modeling are used concurrently to produce a good database design • ...
... • What normalization is and what role it plays in database design • About the normal forms 1NF, 2NF, 3NF, BCNF, and 4NF • How normal forms can be transformed from lower normal forms to higher normal forms • That normalization and E-R modeling are used concurrently to produce a good database design • ...