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... There has been much recent interest in using Java to implement database extensions. The SQL-J proposal [SQLJ] describes efforts by database vendors to support user-defined functions (UDFs) written in Java. Java UDFs are considered relevant in environments like internets and intranets, where large nu ...
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A Robust System Architecture for Mining Semi

... algorithm given a set of user specified constraints. Figure 3 shows the components of the rule generator. The parser takes user specified information from the GUI and massages it for the optimizer. The optimizer looks at the type of rule the user wants to generate, the constraints specified, and det ...
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con3075_oow16 - Kai Yu`s Oracle Blog

... • Database performance impacted by volumes of data • IT budgets on storage : performance/cost/volums • Adapting storage tiring to improve the storage efficiency  ILM (Information Lifecycle Management (ILM): practices of applying specific policies for effective information management  With respect ...
Lecture 7 - Relational Algebra II
Lecture 7 - Relational Algebra II

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Vantage App Note 6.3 Database Setup
Vantage App Note 6.3 Database Setup

... Setting Up a Vantage Array Database This procedure presents the steps for installing a new Vantage Array database which will serve more than one Vantage server. Single node installations that include the automatically installed SQL Express database and all Vantage components on a single server do n ...
Replication - Home - Australian SQL Server User Group
Replication - Home - Australian SQL Server User Group

... of replication. Prevents updates from being made on the publishing tables. Concurrent snapshot processing (available only with transactional replication) places shared locks for only a short time while SQL Server 2000 creates initial snapshot files, allowing users to continue working uninterrupted. ...
Higher Databases Notes
Higher Databases Notes

... The problem of data inconsistency is only one of the results of the design of the table above. • There is no way of storing the details of a member who hasn’t rented any DVDs. If the DVD Code is the key of the table, then a DVD Code must be provided. This is called an insertion anomaly. • If a membe ...
Object Query Language
Object Query Language

... The lifetime of an object determines how the memory and storage allocated tot the object is to be managed. This is to be specified at the time the object is created and can be either transient or persistent. Objects with transient lifetime are allocated memory by the programming language system at r ...
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... SSLServer Socket classes, which are extensions to the classical Socket , and Server Socket. They add a layer of security protections over the underlying TCP network transport protocol. ...
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Lecture 5: Active Databases

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Triggers - Department Of Computing

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Clearspace Documentation : Installation Guide

... Clearspace stores data about users, documents, spaces, and so on in a database. You can use either your own database or the evaluation database that's included with the Clearspace distribution. When you're setting up Clearspace with its setup tool, you'll be prompted for information about the data s ...
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... in an external programming language ◦ Functions are particularly useful with specialized data types such as images and geometric objects  Example: functions to check if polygons overlap, or to compare images for similarity ...
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Exercise 1 – SQL – Bus Depots` Database

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... different times to accommodate other demands on the server. There are two types of application programming interfaces (APIs) for parsing XML files—the tree-based DOM (Document Object Model) and the event-based SAX (Simple API to XML) [8]. We chose the latter. A DOM parser organizes data from the XML ...
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... rules that are implemented in normal program code, rather than rules that are enforced externally by a rule engine. Our approach utilises intensional database test cases [18], that include pre- and post-conditions in the form of declarative queries specifying the requirements of the database both b ...
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... You might want to make a installation script for later use: Create new empty document (in ubuntu GUI) and name it mynodeinstaller.sh Use eg. Gedit to edit you script. If it looks like this the output form the installation is recorded in install.log ...
Tracking Specification Requirements Evolution: Database Approach
Tracking Specification Requirements Evolution: Database Approach

... versions where the element status was changed). Let’s call such fields ’AppearedIn’, ’WithdrawnIn’, ’OptionalTill’ (or ’MandatorySince’) and ’DeprecatedSince’. Note that in the first case there is no need in field containing list of versions where element was excluded from the specification – it is ...
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... Abstract-A statistical database (SDB) may be defined as an ordinary database with the capability of providing statistical information to user queries. The security problem for the SDB is to limit the use of the SDB so(that only statistical information is available and no sequence of queries is suffi ...
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Concurrency control

In information technology and computer science, especially in the fields of computer programming, operating systems, multiprocessors, and databases, concurrency control ensures that correct results for concurrent operations are generated, while getting those results as quickly as possible.Computer systems, both software and hardware, consist of modules, or components. Each component is designed to operate correctly, i.e., to obey or to meet certain consistency rules. When components that operate concurrently interact by messaging or by sharing accessed data (in memory or storage), a certain component's consistency may be violated by another component. The general area of concurrency control provides rules, methods, design methodologies, and theories to maintain the consistency of components operating concurrently while interacting, and thus the consistency and correctness of the whole system. Introducing concurrency control into a system means applying operation constraints which typically result in some performance reduction. Operation consistency and correctness should be achieved with as good as possible efficiency, without reducing performance below reasonable levels. Concurrency control can require significant additional complexity and overhead in a concurrent algorithm compared to the simpler sequential algorithm.For example, a failure in concurrency control can result in data corruption from torn read or write operations.
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