Chapter 1: Introduction - Universiteit van Amsterdam FNWI
... The ability to specify new tags, and to create nested tag structures ...
... The ability to specify new tags, and to create nested tag structures ...
CS186 - Introduction to Database Systems Fall Semester 2003 Prof
... • Each transaction, executed completely, must take the DB between consistent states. • Users can specify simple integrity constraints on the data. The DBMS enforces these. – Beyond this, the DBMS does not understand the semantics of the data. – Ensuring that a single transaction (run alone) preserve ...
... • Each transaction, executed completely, must take the DB between consistent states. • Users can specify simple integrity constraints on the data. The DBMS enforces these. – Beyond this, the DBMS does not understand the semantics of the data. – Ensuring that a single transaction (run alone) preserve ...
DB2 LUW for the Oracle DBA
... The redo log is a set of files that protect altered database data in memory that has not been written to the datafiles. The redo log can consist of two parts: the online redo log and the archived redo log. Redo log files record all changes made to the database, and are used for data recovery. If the ...
... The redo log is a set of files that protect altered database data in memory that has not been written to the datafiles. The redo log can consist of two parts: the online redo log and the archived redo log. Redo log files record all changes made to the database, and are used for data recovery. If the ...
subspace clustering
... Projected clustering seeks to assign each point to a unique cluster, but clusters may exist in different subspaces. ...
... Projected clustering seeks to assign each point to a unique cluster, but clusters may exist in different subspaces. ...
Slide
... Wasteful overlap of resources and personnel can be avoided by consolidating data and applications ...
... Wasteful overlap of resources and personnel can be avoided by consolidating data and applications ...
Toward the Universal Database: U-forms and the VIA
... It is obvious that the Universal Database must be vastly distributed, both in space and across many diverse devices. This stipulation implies the need for a high level of data liquidity, that is, the ability for data to flow readily from venue to venue. Each computing device and each physical locati ...
... It is obvious that the Universal Database must be vastly distributed, both in space and across many diverse devices. This stipulation implies the need for a high level of data liquidity, that is, the ability for data to flow readily from venue to venue. Each computing device and each physical locati ...
Exercise 9
... Relational Databases I Exercise Sheet 09: SQL 2 (34 points) (due by Thursday, January 9, 2014) Please note: You need 50% of all exercise points to receive the Studienleistung. Solutions have to be turned in on paper until Thursday before the lecture either in the lecture hall or into our mailbox (In ...
... Relational Databases I Exercise Sheet 09: SQL 2 (34 points) (due by Thursday, January 9, 2014) Please note: You need 50% of all exercise points to receive the Studienleistung. Solutions have to be turned in on paper until Thursday before the lecture either in the lecture hall or into our mailbox (In ...
Networked Applications
... Applications in this Chapter • There are many applications • We will only look at 3 networked applications – Web-enabled database access – Internet E-mail – IP telephony for voice-data convergence ...
... Applications in this Chapter • There are many applications • We will only look at 3 networked applications – Web-enabled database access – Internet E-mail – IP telephony for voice-data convergence ...
(Client – Server Integration Development Environment) This is the
... This is the development environment of Navision. It consist of the codes needed to interpret the application objects, development system tools, the DBMS and the operating system interface. Object –based. ...
... This is the development environment of Navision. It consist of the codes needed to interpret the application objects, development system tools, the DBMS and the operating system interface. Object –based. ...
Presentation
... incorrectly (not part of scenario) Teacher is not able to select ”add element to notice board” from the menue Students are able to add items to the notice board without having the proper access privilegies ...
... incorrectly (not part of scenario) Teacher is not able to select ”add element to notice board” from the menue Students are able to add items to the notice board without having the proper access privilegies ...
No Slide Title
... sequencing may be different. Solution: kind of “standard” software that may be easily tailored to the individual needs of each operator and that can produce action plans based on the booking data accordingly. ...
... sequencing may be different. Solution: kind of “standard” software that may be easily tailored to the individual needs of each operator and that can produce action plans based on the booking data accordingly. ...
Database Security in an Enterprise Environment
... • Oracle: sys, system accounts – privileged, with default passwords • Oracle: scott account – well-known account and password, part of public group – e.g. public can access all_users table Need for general password policies (length, domain, changing, protection, …) Need for general account policies ...
... • Oracle: sys, system accounts – privileged, with default passwords • Oracle: scott account – well-known account and password, part of public group – e.g. public can access all_users table Need for general password policies (length, domain, changing, protection, …) Need for general account policies ...
Implementation of Data Management and Project Tracking
... • Basic project history database for each “project” • Visualisation of project history as a simple list of jobs • Starting point for data management within CCP4 Limitations of the database: • Only accessible from within CCP4i system • Cannot be accessed by multiple users/processes or remotely • Scop ...
... • Basic project history database for each “project” • Visualisation of project history as a simple list of jobs • Starting point for data management within CCP4 Limitations of the database: • Only accessible from within CCP4i system • Cannot be accessed by multiple users/processes or remotely • Scop ...
Chapter 10 ASP.NET Security
... DataSets vs. DataReaders To simply query a database and read through the records one at a time until you find the one you’re looking for, then DataReader is the right tool. DataReaders (1) retrieve only the data that you actually use, and (2) they don’t consume memory by not storing every record ...
... DataSets vs. DataReaders To simply query a database and read through the records one at a time until you find the one you’re looking for, then DataReader is the right tool. DataReaders (1) retrieve only the data that you actually use, and (2) they don’t consume memory by not storing every record ...
What is a Database Management System?
... (RAID) • To improve file access performance by parallel processing of multiple disks • Disk Striping: To distribute a sequence of data blocks horizontally on all disks so that the retrieval speed is increased • There are several ways of striping the data and error correction codes on RAID, leading t ...
... (RAID) • To improve file access performance by parallel processing of multiple disks • Disk Striping: To distribute a sequence of data blocks horizontally on all disks so that the retrieval speed is increased • There are several ways of striping the data and error correction codes on RAID, leading t ...
IOSR Journal of Computer Engineering (IOSR-JCE) PP 18-22 www.iosrjournals.org
... (meaning that general purpose control and computational structures are provided while relational databases typically do not have computationally complete programming capabilities although some stored procedure languages come close. Few points are mentioned for the comparison between OODBMS and RDBMS ...
... (meaning that general purpose control and computational structures are provided while relational databases typically do not have computationally complete programming capabilities although some stored procedure languages come close. Few points are mentioned for the comparison between OODBMS and RDBMS ...
CSE314 Database Systems
... Collection of related data Known facts that can be recorded and that have implicit meaning Miniworld or universe of discourse (UoD) Represents some aspect of the real world Logically coherent collection of data with inherent meaning Built for a specific purpose ...
... Collection of related data Known facts that can be recorded and that have implicit meaning Miniworld or universe of discourse (UoD) Represents some aspect of the real world Logically coherent collection of data with inherent meaning Built for a specific purpose ...
Building Multi Tenant Applications in Java v1.0
... With applications moving outside of customer premise, corporate users are forced to have multiple identities one corporate and other in-cloud application identity. This poses a security problem for customers since a person moving out of the company still has access to corporate data. Therefore ...
... With applications moving outside of customer premise, corporate users are forced to have multiple identities one corporate and other in-cloud application identity. This poses a security problem for customers since a person moving out of the company still has access to corporate data. Therefore ...
Introduction to Database Systems
... – Before reading/writing an object, a transaction requests a lock on the object, and waits till the DBMS gives it the lock. All locks are released at the end of the transaction. – Idea: If an action of Ti (say, writing X) affects Tj (which perhaps reads X), one of them, say Ti, will obtain the lock ...
... – Before reading/writing an object, a transaction requests a lock on the object, and waits till the DBMS gives it the lock. All locks are released at the end of the transaction. – Idea: If an action of Ti (say, writing X) affects Tj (which perhaps reads X), one of them, say Ti, will obtain the lock ...
Database Management Systems Chapter 1 What Is a DBMS? Files
... corresponding log entry is forced to a safe location. (WAL protocol; OS support for this is often inadequate.) After a crash, the effects of partially executed transactions are undone using the log. (Thanks to WAL, if log entry wasn’t saved before the crash, corresponding change was not applied to d ...
... corresponding log entry is forced to a safe location. (WAL protocol; OS support for this is often inadequate.) After a crash, the effects of partially executed transactions are undone using the log. (Thanks to WAL, if log entry wasn’t saved before the crash, corresponding change was not applied to d ...
Overview of Database Management Systems
... (WAL protocol; OS support for this is often inadequate.) After a crash, the effects of partially executed transactions are undone using the log. (Thanks to WAL, if log entry wasn’t saved before the crash, corresponding change was not applied to database!) ...
... (WAL protocol; OS support for this is often inadequate.) After a crash, the effects of partially executed transactions are undone using the log. (Thanks to WAL, if log entry wasn’t saved before the crash, corresponding change was not applied to database!) ...
Ch1_Intro-95.old
... corresponding log entry is forced to a safe location. (WAL protocol; OS support for this is often inadequate.) After a crash, the effects of partially executed transactions are undone using the log. (Thanks to WAL, if log entry wasn’t saved before the crash, corresponding change was not applied to d ...
... corresponding log entry is forced to a safe location. (WAL protocol; OS support for this is often inadequate.) After a crash, the effects of partially executed transactions are undone using the log. (Thanks to WAL, if log entry wasn’t saved before the crash, corresponding change was not applied to d ...
Database - Computer Science
... DataSets vs. DataReaders To simply query a database and read through the records one at a time until you find the one you’re looking for, then DataReader is the right tool. DataReaders (1) retrieve only the data that you actually use, and (2) they don’t consume memory by not storing every record ...
... DataSets vs. DataReaders To simply query a database and read through the records one at a time until you find the one you’re looking for, then DataReader is the right tool. DataReaders (1) retrieve only the data that you actually use, and (2) they don’t consume memory by not storing every record ...