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HP Vertica Analytics Platform 7.0.x Concepts Guide
HP Vertica Analytics Platform 7.0.x Concepts Guide

... recovers its lost objects by querying the other nodes. See Managing Nodes and Monitoring Recovery in the Administrator's Guide. In HP Vertica, the value of K can be 0, 1, or 2. If a database that has a K-safety of one (K=1) loses a node, the database continues to run normally. Potentially, the datab ...
Global Payroll Performance Optimisation - II David Kurtz
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Keyword Search in Structured and Semistructured

... it joins tuples from multiple relations in the database to identify tuple trees with all the query keywords (“AND” semantics). All such tuple trees are the answer to the query. BANKS [9] assumes that the database is a graph with no schema and calculates subtrees that contain the keywords. On the oth ...
How to Use the PowerPoint Template
How to Use the PowerPoint Template

... • Adjust the distribution of work based on back end node capacities such as CPU, availability, and current workload • React to changes in Oracle RAC topology ...
Enterprise Data Warehousing on AWS
Enterprise Data Warehousing on AWS

... or more data sources. Data typically flows into a data warehouse from transactional systems and other relational databases, and typically includes structured, semi-structured, and unstructured data. This data is processed, transformed, and ingested at a regular cadence. Users including data scientis ...
Exploiting NoSQL Like Never Before
Exploiting NoSQL Like Never Before

... • Support for Neo4j,Memcache and Riak soon to be added • Memory Leaks and Overflows on the Rise • An excellent address to Ne04j security issue was written recently • Link:http://blog.scrt.ch/2014/05/09/neo4j-enter-the-graphdb/ ...
An Adaptive Probe-Based Technique to Optimize Join Queries in Distributed Internet Databases
An Adaptive Probe-Based Technique to Optimize Join Queries in Distributed Internet Databases

... are a number of unpredictable factors that make the cost computation complicated [PF97]. A static query optimizer that does not consider the characteristics of the environment or only considers the a priori knowledge on the run-time parameters might end up choosing expensive plans due to these unpre ...
IBM WebSphere Portal Version 5.1 Tuning Guide
IBM WebSphere Portal Version 5.1 Tuning Guide

... • Make sure that the system has enough physical memory for all of the processes to fit into physical memory, plus enough for the operating system. When more memory is allocated than the physical memory in the system, paging will occur, and this can result in very poor performance. • While we set the ...
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... management database (CMDB) into an industry reality — and the concept of data federation is at the forefront. Organic development and IT management tool implementations have increased significantly in recent years, leaving many organizations with data that is pertinent to millions of configuration i ...
Working with the Geodatabase Using SQL
Working with the Geodatabase Using SQL

... and their relationships with adjacent features are viewed and manipulated as intuitive real-world objects rather than the underlying table rows and columns. This technical paper will focus on an alternative approach to working with a geodatabase that will support those who may have no specific knowl ...
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Advanced Performance Tuning Tips with Database

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A proposed framework for analytical processing

... extremely large and complex, especially in the Province of Quebec where management and feed information are also collected for on-farm advising. Any subsequent analysis of these data for strategic (or even tactical) decision making is often impeded by the transactional nature of the existing databas ...
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... Invoker’s right for stored procedure  A stored procedure is usually executed under the permission of the stored procedure’s owner (similar to SUID files in UNIX file system).  However, when executing dynamic query (i.e. “exec()”) in a stored procedure, some database servers, such as Oracle[5] and ...
this presentation today
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... Results: 140x reduction in ‘db file sequential reads’ with ~190GB of Flash! – Average Flash Cache Read time 540us vs 10.75ms: 20X quicker. – Transaction and commit rate also went up over 40%! ...
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Advanced Topics on SQL Injection Protection
Advanced Topics on SQL Injection Protection

... Invoker’s right for stored procedure  A stored procedure is usually executed under the permission of the stored procedure’s owner (similar to SUID files in UNIX file system).  However, when executing dynamic query (i.e. “exec()”) in a stored procedure, some database servers, such as Oracle[5] and ...
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Oracle Exadata Database Machine X4
Oracle Exadata Database Machine X4

Intelligent SQL generation for persistent object retrieval
Intelligent SQL generation for persistent object retrieval

... gramming styles for a query language and an application programming language. For example, SQL is a relational data model language that has its oWn programming style Whereas applications are usually Written in an imperative programming style using a procedural language such as C or an object-oriente ...
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... The system shall provide assignment submission facility i.e. assignments could be submitted via the portal similar to how it happens on Moodle. - The assignment submission page would have an active timer to record the time of submission in order to penalize the students for late submission. The Subm ...
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Active using asp (Active Server Pages)
Active using asp (Active Server Pages)

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Microsoft Access Chapter 7
Microsoft Access Chapter 7

... • Filter data by Selection and by Form • Remove a filter • Summarize and analyze data in PivotTable view • Summarize and analyze data in PivotTable form • Summarize and analyze data in PivotChart view • View and customize document properties • View object dependencies ...
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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.
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