Recovery
... • At a checkpoint, all the updates made by committed and not yet committed transactions are stored in database. • a very typical situation in practice • what are the implications for recovery? • is undo needed? • is redo needed? Sept. 2015 ...
... • At a checkpoint, all the updates made by committed and not yet committed transactions are stored in database. • a very typical situation in practice • what are the implications for recovery? • is undo needed? • is redo needed? Sept. 2015 ...
School of Sciences and Engineering
... The objects contained may themselves be complex objects, resulting in a n APART-OF hierarchy. A contained object can be handled in one of two ways: First, it be encapsulated within the complex object, and thus forms part of the complex object. Second, it can be considered to have an independent ...
... The objects contained may themselves be complex objects, resulting in a n APART-OF hierarchy. A contained object can be handled in one of two ways: First, it be encapsulated within the complex object, and thus forms part of the complex object. Second, it can be considered to have an independent ...
A Quick Immersion Into Rose::DB
... Complex Query Example • Find the applications that were developed by someone born before 1950. • Cf. apps_by_oldtimers ...
... Complex Query Example • Find the applications that were developed by someone born before 1950. • Cf. apps_by_oldtimers ...
An Introduction to Banner Glossary of Terms
... transaction database and can also include data from other sources. It may also contain historical data. A datamart is more narrow in focus than a data warehouse. The purpose of the datamart is to enhance reporting for a particular segment of users or for a particular department rather than for an en ...
... transaction database and can also include data from other sources. It may also contain historical data. A datamart is more narrow in focus than a data warehouse. The purpose of the datamart is to enhance reporting for a particular segment of users or for a particular department rather than for an en ...
Improving Similarity Search in Face
... sets will soon be accumulated. Face-images browsing is based on the concept of similarity between face-images, i.e. searching face-images which are very similar or close to a given face. Each face-image is represented as a vector of numeric properties (features) extracted from the contend-based imag ...
... sets will soon be accumulated. Face-images browsing is based on the concept of similarity between face-images, i.e. searching face-images which are very similar or close to a given face. Each face-image is represented as a vector of numeric properties (features) extracted from the contend-based imag ...
HCL-Database-Upgrade-Capabilities_V1-1
... across the globe which would provide them a single storage location of all their business data with maximum performance benefits and high availability ...
... across the globe which would provide them a single storage location of all their business data with maximum performance benefits and high availability ...
slides
... important for the choices made when planning query execution. • Time for operations grow (at least) linearly with size of (largest) argument. • The total size can even be used as a crude estimate on the running time. ...
... important for the choices made when planning query execution. • Time for operations grow (at least) linearly with size of (largest) argument. • The total size can even be used as a crude estimate on the running time. ...
Distributed Databases - UCLA Computer Science
... Handled by network protocols, by routing messages via alternative links ...
... Handled by network protocols, by routing messages via alternative links ...
Distributed Databases - UCLA Computer Science
... by network protocols, by routing messages via alternative links ...
... by network protocols, by routing messages via alternative links ...
Estimation of Query Execution Time in Milli Seconds, Micro Seconds
... SQL) to access the data stored in a database. Most of the relational database application programs are written in high-level languages integrating a relational language. The important concept considered in SQL are (entities, relationships, attributes) and the data schema while using SQL. The user ha ...
... SQL) to access the data stored in a database. Most of the relational database application programs are written in high-level languages integrating a relational language. The important concept considered in SQL are (entities, relationships, attributes) and the data schema while using SQL. The user ha ...
Introduction to MS Access
... • A collection of related tables is called a database or relational database. • Sometimes you may want the information about Customers and orders they placed. To obtain this information you must have a way to connect records in the customer table to records in the order table. • You connect the reco ...
... • A collection of related tables is called a database or relational database. • Sometimes you may want the information about Customers and orders they placed. To obtain this information you must have a way to connect records in the customer table to records in the order table. • You connect the reco ...
halFILE for Windows
... • Forms overlay feature handles output generated for forms such as Tax Statements • Text Files are integrated with Images and other documents ...
... • Forms overlay feature handles output generated for forms such as Tax Statements • Text Files are integrated with Images and other documents ...
UML Models
... Row Data Gateway Put all SQL about a table in the same class, the Row Data Gateway. One instance for each row. Methods contain only SQL Instance variables just row fields ...
... Row Data Gateway Put all SQL about a table in the same class, the Row Data Gateway. One instance for each row. Methods contain only SQL Instance variables just row fields ...
7. XML_Native Storage
... – Semantically partition large document into subtrees based on tree structure – Store each subtree in one record (unit of storage) that is atomic – Proxy nodes are used to connect subtrees in different records – Primitives for read/write/insert/delete of element – Record size need not be statically ...
... – Semantically partition large document into subtrees based on tree structure – Store each subtree in one record (unit of storage) that is atomic – Proxy nodes are used to connect subtrees in different records – Primitives for read/write/insert/delete of element – Record size need not be statically ...
Chapter>>
... local area networks, communication costs are more equally weighted with local costs. 40. How does two phase locking for distributed databases differ from two phase locking for centralized databases? Ans: For distributed query processing, lock management must be done across all sites. This can be don ...
... local area networks, communication costs are more equally weighted with local costs. 40. How does two phase locking for distributed databases differ from two phase locking for centralized databases? Ans: For distributed query processing, lock management must be done across all sites. This can be don ...
misc
... • A specification for transferring information between Web servers and CGI programs using CGI scripts • CGI scripts can be written in any language that supports the reading and writing of an operating system’s environment variables, e.g. Perl, Java, C • Advantages are simplicity, language independen ...
... • A specification for transferring information between Web servers and CGI programs using CGI scripts • CGI scripts can be written in any language that supports the reading and writing of an operating system’s environment variables, e.g. Perl, Java, C • Advantages are simplicity, language independen ...
Kroenke-Auer-DBP-e11-PPT-Chapter11
... ODBC Data Source • A data source is an ODBC data structure that identifies a database and the DBMS that processes it. • Three types of data source names: – A file data source is a file that can be shared among database users having the same DBMS driver and privilege. – A system data source is local ...
... ODBC Data Source • A data source is an ODBC data structure that identifies a database and the DBMS that processes it. • Three types of data source names: – A file data source is a file that can be shared among database users having the same DBMS driver and privilege. – A system data source is local ...
slides - UCLA Computer Science
... As today, there is a poor understanding of temporal issues and their complexities among database specialists This parallels the general ignorance about time we find in modern life, where the solutions of all temporal problems are taken for granted But finding efficient ways to represent and measure ...
... As today, there is a poor understanding of temporal issues and their complexities among database specialists This parallels the general ignorance about time we find in modern life, where the solutions of all temporal problems are taken for granted But finding efficient ways to represent and measure ...
cos346day18
... transactions that run concurrently and generate results that are consistent with the results that would have occurred if they had run separately • Two-phased locking is one of the techniques used to achieve serializability ...
... transactions that run concurrently and generate results that are consistent with the results that would have occurred if they had run separately • Two-phased locking is one of the techniques used to achieve serializability ...
Congrats, you`re teaching Access!
... o Prevents orphans! Children that have no parent Definition: Records in the “many” table that do not have a match in the “one” table Examples: Enrollments (child) into a class (parent) that doesn’t exist Enrollments (child) for a student (parent) that doesn’t exit ...
... o Prevents orphans! Children that have no parent Definition: Records in the “many” table that do not have a match in the “one” table Examples: Enrollments (child) into a class (parent) that doesn’t exist Enrollments (child) for a student (parent) that doesn’t exit ...
7. Inconsistency Handling What If the database is inconsistent
... Inconsistencies can be detected, and data can be changed to reach a physical consistent state This kind of data cleaning may be difficult, impossible, nondeterministic, undesirable, unmaintainable, etc. We may have to live with inconsistent data ... The database (the model) is departing from the outsi ...
... Inconsistencies can be detected, and data can be changed to reach a physical consistent state This kind of data cleaning may be difficult, impossible, nondeterministic, undesirable, unmaintainable, etc. We may have to live with inconsistent data ... The database (the model) is departing from the outsi ...
A Practical Approach for Microscopy Imaging Data Management (MIDM) in Neuroscience
... repository for simple text -based retrieval, but also provides image content retrieval. Although content-based image retrieval has been widely researched to retrieve desired images on the basis of features (such as color, texture, shape) that can be automatically extracted from the images themselves ...
... repository for simple text -based retrieval, but also provides image content retrieval. Although content-based image retrieval has been widely researched to retrieve desired images on the basis of features (such as color, texture, shape) that can be automatically extracted from the images themselves ...
Versant Object Database
Versant Object Database (VOD) is an object database software product developed by Versant Corporation.The Versant Object Database enables developers using object oriented languages to transactionally store their information by allowing the respective language to act as the Data Definition Language (DDL) for the database. In other words, the memory model is the database schema model.In general, persistence in VOD in implemented by declaring a list of classes, then providing a transaction demarcation application programming interface to use cases. Respective language integrations adhere to the constructs of that language, including syntactic and directive sugars.Additional APIs exist, beyond simple transaction demarcation, providing for the more advanced capabilities necessary to address practical issues found when dealing with performance optimization and scalability for systems with large amounts of data, many concurrent users, network latency, disk bottlenecks, etc.