IC52C4: Introduction
... Internal consistency A transaction which executes alone against a consistent database leaves it in a consistent state. Transactions do not violate database integrity constraints. ...
... Internal consistency A transaction which executes alone against a consistent database leaves it in a consistent state. Transactions do not violate database integrity constraints. ...
Enhancing scientific information systems with semantic annotations
... addition, produce knowledge representation such as ontologies that allow to define semantic links between data, results, and literature. Nevertheless, as noted in a report by Werner Ceusters and Barry Smith for Health IT domain [4], there is an overestimation of the value of terminologies and concep ...
... addition, produce knowledge representation such as ontologies that allow to define semantic links between data, results, and literature. Nevertheless, as noted in a report by Werner Ceusters and Barry Smith for Health IT domain [4], there is an overestimation of the value of terminologies and concep ...
here. - NYU Computer Science
... the higher-level entity set must belong to at least one of the lower-level entity sets within a generalization. • total : an entity must belong to one of the lower-level entity sets • partial: an entity need not belong to one of the lower-level entity ...
... the higher-level entity set must belong to at least one of the lower-level entity sets within a generalization. • total : an entity must belong to one of the lower-level entity sets • partial: an entity need not belong to one of the lower-level entity ...
Tlog backups will clear VLFs for reuse but probably will not shrink tlog
... Talk about VLFs, their value, impact and relationship to the SQL transaction log. What causes the VLF count to grow? How to rein in VLF and subsequent SQL Server transaction log growth. How to get into the Goldilocks Zone, that is, get a handle on stabilizing VLFs and the SQL Server transact ...
... Talk about VLFs, their value, impact and relationship to the SQL transaction log. What causes the VLF count to grow? How to rein in VLF and subsequent SQL Server transaction log growth. How to get into the Goldilocks Zone, that is, get a handle on stabilizing VLFs and the SQL Server transact ...
XML
... Simple language consisting of path expressions An XML query language with a rich set of features ...
... Simple language consisting of path expressions An XML query language with a rich set of features ...
Fast Track Data Warehouse Reference
... Sequential scan rates can be many factors higher (10 times or more) than random access rates. In addition, indexes are of reduced value when large data scans are required by most queries. For these reasons, this document prescribes other performance optimizations, such as clustered index or table p ...
... Sequential scan rates can be many factors higher (10 times or more) than random access rates. In addition, indexes are of reduced value when large data scans are required by most queries. For these reasons, this document prescribes other performance optimizations, such as clustered index or table p ...
Java Stored Procedure
... • We have developed, loaded and published the Java class as a Java Stored Procedure. Now we test the same by executing the procedure in SQL * PLUS • The DBMS_JAVA package, an Oracle-supplied package with utilities for managing server-side Java has a method for redirecting output to SQL*Plus SQL> SET ...
... • We have developed, loaded and published the Java class as a Java Stored Procedure. Now we test the same by executing the procedure in SQL * PLUS • The DBMS_JAVA package, an Oracle-supplied package with utilities for managing server-side Java has a method for redirecting output to SQL*Plus SQL> SET ...
Microsoft MS. SQL Server 2008
... SQL Server 2008 Analysis Services introduces a set of new, innovative Best Practice Design Alerts that provide automatic notification of potential design issues early in the development process, which reduces wasted time caused by design mistakes and facilitates a faster development process. ...
... SQL Server 2008 Analysis Services introduces a set of new, innovative Best Practice Design Alerts that provide automatic notification of potential design issues early in the development process, which reduces wasted time caused by design mistakes and facilitates a faster development process. ...
Backup and Restore
... A user-defined policy for determining how long backups and archived logs need to be retained for media recovery. There are following types of retention policies. a. Recovery window The RECOVERY WINDOW parameter of the CONFIGURE command specifies the number of days between the current time and the ea ...
... A user-defined policy for determining how long backups and archived logs need to be retained for media recovery. There are following types of retention policies. a. Recovery window The RECOVERY WINDOW parameter of the CONFIGURE command specifies the number of days between the current time and the ea ...
Self-optimizing native object database for a dynamic
... software today. For distributed storage of data they mostly use relational databases. The relational model however is not fully natural from an object oriented development perspective. The natural selection would be to use object oriented databases, however their development has not been as fast as ...
... software today. For distributed storage of data they mostly use relational databases. The relational model however is not fully natural from an object oriented development perspective. The natural selection would be to use object oriented databases, however their development has not been as fast as ...
Database Backup and Recovery
... involve most of these seven steps: 1. Identify the failure. 2. Analyze the situation. 3. Determine what needs to be recovered. 4. Identify dependencies between the database objects to be recovered. 5. Locate the required image copy backup(s). 6. Restore the image copy backup(s). 7. Roll forward thro ...
... involve most of these seven steps: 1. Identify the failure. 2. Analyze the situation. 3. Determine what needs to be recovered. 4. Identify dependencies between the database objects to be recovered. 5. Locate the required image copy backup(s). 6. Restore the image copy backup(s). 7. Roll forward thro ...
Enterprise Mgr. TimesTen Plug
... Install the Oracle Enterprise Manager Agent. Make sure the agent can successfully communicate with your Oracle Enterprise Manager Server and can upload data. For example, Agent Availability must be UP, Last Load Time should show a recent date/timestamp, and Last Load Time should get periodically ...
... Install the Oracle Enterprise Manager Agent. Make sure the agent can successfully communicate with your Oracle Enterprise Manager Server and can upload data. For example, Agent Availability must be UP, Last Load Time should show a recent date/timestamp, and Last Load Time should get periodically ...
reldes
... Or, if you already have your data in a spreadsheet or table of some sort, but you have repeating data (unnormalized data) and you want to separate the data out into two or more relational Microsoft Access tables, you can use the Table Analyzer Wizard to help you decide which fields need to be moved ...
... Or, if you already have your data in a spreadsheet or table of some sort, but you have repeating data (unnormalized data) and you want to separate the data out into two or more relational Microsoft Access tables, you can use the Table Analyzer Wizard to help you decide which fields need to be moved ...
Constructing Integrated Clinical Information Systems for Traditional and Nontraditional Users
... will offer the ability to simultaneously access data stored on multiple computers and database systems. For these reasons, the SAS system was chosen as the development platform for the CLiNAcCESS™ clinical data review system, which is deSigned to provide monitors, CRA's, and other non-traditional us ...
... will offer the ability to simultaneously access data stored on multiple computers and database systems. For these reasons, the SAS system was chosen as the development platform for the CLiNAcCESS™ clinical data review system, which is deSigned to provide monitors, CRA's, and other non-traditional us ...
Physics Database Service Status
... Security has many layers: – Oracle’s security checklist – Scan for weak or default passwords – Check for published info on the web also by other sites • ‘Social engineering’ is a threat for complex environments ...
... Security has many layers: – Oracle’s security checklist – Scan for weak or default passwords – Check for published info on the web also by other sites • ‘Social engineering’ is a threat for complex environments ...
Directed Graph based Distributed Sequential Pattern Mining
... allows distributed processing of huge amounts of data (multi-terabyte data-sets) on thousands of nodes of service hardware in a consistent, fault-tolerant manner [19]. A MapReduce job usually divides the input data-set into independent structures which are executed by the map tasks in a fully parall ...
... allows distributed processing of huge amounts of data (multi-terabyte data-sets) on thousands of nodes of service hardware in a consistent, fault-tolerant manner [19]. A MapReduce job usually divides the input data-set into independent structures which are executed by the map tasks in a fully parall ...
PPTX
... causes for a particular phenomenon, in some places in the text, but we have no data, yet, to verify our gutfeeling. – And yes, it is quite possible that our correlations hide cofounding variables. ...
... causes for a particular phenomenon, in some places in the text, but we have no data, yet, to verify our gutfeeling. – And yes, it is quite possible that our correlations hide cofounding variables. ...
![37] C. Mohan and F. Levine. ARIES/IM an e cient](http://s1.studyres.com/store/data/007913026_1-c3d89e6fbde14ed6f6670e835f6e29bb-300x300.png)
37] C. Mohan and F. Levine. ARIES/IM an e cient
... a traversal, whether the left or right child was taken when leaving the node, and the version number of the node when it was rst encountered. In the following, a version number is said to have changed if the current version number in the node is di erent from the version number stored in the stack ...
... a traversal, whether the left or right child was taken when leaving the node, and the version number of the node when it was rst encountered. In the following, a version number is said to have changed if the current version number in the node is di erent from the version number stored in the stack ...
Automatic Database Configuration for DB2
... IBM’s DB2 Universal Database product provides a set of configuration parameters settings that can be used to configure and tune the DB2 environment. The objective of the Advisor is to define a set of initial database configuration parameters and memory assignments to optimize system performance with ...
... IBM’s DB2 Universal Database product provides a set of configuration parameters settings that can be used to configure and tune the DB2 environment. The objective of the Advisor is to define a set of initial database configuration parameters and memory assignments to optimize system performance with ...
Semantic Technology Conference 2007 PPT
... – Integration of three Asio tools • Semantic Query Decomposition (SQD) • Semantic Bridge for Relational Databases (SBRD) • Semantic Bridge for Web Services (SBWS) ...
... – Integration of three Asio tools • Semantic Query Decomposition (SQD) • Semantic Bridge for Relational Databases (SBRD) • Semantic Bridge for Web Services (SBWS) ...
m - Hal
... • pragmatically gave up on consistency and rich query features • trade-off to high throughput/availability, horizontal elasticity ...
... • pragmatically gave up on consistency and rich query features • trade-off to high throughput/availability, horizontal elasticity ...
Relational model
The relational model for database management is an approach to managing data using a structure and language consistent with first-order predicate logic, first described in 1969 by Edgar F. Codd. In the relational model of a database, all data is represented in terms of tuples, grouped into relations. A database organized in terms of the relational model is a relational database.The purpose of the relational model is to provide a declarative method for specifying data and queries: users directly state what information the database contains and what information they want from it, and let the database management system software take care of describing data structures for storing the data and retrieval procedures for answering queries.Most relational databases use the SQL data definition and query language; these systems implement what can be regarded as an engineering approximation to the relational model. A table in an SQL database schema corresponds to a predicate variable; the contents of a table to a relation; key constraints, other constraints, and SQL queries correspond to predicates. However, SQL databases deviate from the relational model in many details, and Codd fiercely argued against deviations that compromise the original principles.