Parallel Query Processing in Shared Disk Database Systems
... parallelism, e.g., XPRS [SKP088) and Volcano [Gr90]. However, SE has significant limitations with respect to meeting high performance and avail· ability requirements. In panicular, the shared memory can become a performance bottleneck thereby limiting the scalability of the architecture. Consequentl ...
... parallelism, e.g., XPRS [SKP088) and Volcano [Gr90]. However, SE has significant limitations with respect to meeting high performance and avail· ability requirements. In panicular, the shared memory can become a performance bottleneck thereby limiting the scalability of the architecture. Consequentl ...
Week 7 Table Analysis
... • Computer speeds have overcome slow response in most applications • Low training costs • Inertia – many tools are available for RDBMS, large personnel pool ...
... • Computer speeds have overcome slow response in most applications • Low training costs • Inertia – many tools are available for RDBMS, large personnel pool ...
Parallel Databases - Brown Computer Science
... Result of the local aggregation is partitioned on the grouping attributes, and the aggregation performed again at each processor Pi to get the final result. ...
... Result of the local aggregation is partitioned on the grouping attributes, and the aggregation performed again at each processor Pi to get the final result. ...
The Essentials of Clinical Data Management
... Prior to site coordinators and staff completing case report forms or entering data into the data management system, they will need to be trained on the proper procedures to carry out these tasks Data managers are responsible for conducting the training with the site staff on the proper way to ...
... Prior to site coordinators and staff completing case report forms or entering data into the data management system, they will need to be trained on the proper procedures to carry out these tasks Data managers are responsible for conducting the training with the site staff on the proper way to ...
The Entity-Relationship Model
... A collection of databases, tables and related objects organised in a ...
... A collection of databases, tables and related objects organised in a ...
Oracle Migration Assessment
... end of the range a migration can be accomplished with minimal help from EnterpriseDB beyond any standard documentation and training that are available. At the lower end of the range, some consulting from EnterpriseDB experts may be needed to implement portions of the database and its client applicat ...
... end of the range a migration can be accomplished with minimal help from EnterpriseDB beyond any standard documentation and training that are available. At the lower end of the range, some consulting from EnterpriseDB experts may be needed to implement portions of the database and its client applicat ...
Storing OWL Ontologies in SQL Relational Databases
... which cannot be guaranteed as ontologies are often built in a distributed way. This means, for example, that one user may define an employee as having a social security number, but not foresee a martial status. This will not stop, however, another user from asserting that a given employee is married ...
... which cannot be guaranteed as ontologies are often built in a distributed way. This means, for example, that one user may define an employee as having a social security number, but not foresee a martial status. This will not stop, however, another user from asserting that a given employee is married ...
DBTaint: Cross-Application Information Flow Tracking via Databases
... such as Cross-site Scripting (XSS) attacks, are among top software vulnerabilities [4]. Information flow tracking is a logical approach for preventing these attacks by tracking malicious input [10, 14]. However, the application and effectiveness of information flow tracking is limited by the only tw ...
... such as Cross-site Scripting (XSS) attacks, are among top software vulnerabilities [4]. Information flow tracking is a logical approach for preventing these attacks by tracking malicious input [10, 14]. However, the application and effectiveness of information flow tracking is limited by the only tw ...
IBM
... Database is divided into multiple database partitions Database partitions run on same or separate servers (shared-nothing) Each partition has its own table spaces, log, configuration, etc. Data is spread over N database partitions Queries are executed in parallel on all database partitions ...
... Database is divided into multiple database partitions Database partitions run on same or separate servers (shared-nothing) Each partition has its own table spaces, log, configuration, etc. Data is spread over N database partitions Queries are executed in parallel on all database partitions ...
Introduction to Database Systems, Data Modeling and SQL
... • True object-oriented DBMSs are not widely used, but there is ORM (object relational mapping) which provides the bridge. • Data associated with object-oriented applications are typically stored in conventional or extended relational databases. ...
... • True object-oriented DBMSs are not widely used, but there is ORM (object relational mapping) which provides the bridge. • Data associated with object-oriented applications are typically stored in conventional or extended relational databases. ...
CSE
... Embedded hardware units and devices in a system, Embedded software in a system, Examples of embedded systems, Design process in Embedded system, Formalization of system design, Design process and design examples(smart card, digital camera, mobile phone), Classification of Embedded Systems, Skills re ...
... Embedded hardware units and devices in a system, Embedded software in a system, Examples of embedded systems, Design process in Embedded system, Formalization of system design, Design process and design examples(smart card, digital camera, mobile phone), Classification of Embedded Systems, Skills re ...
Spatial Query Languages
... ConvexHull: Smallest convex geometric set enclosing the geometry SymmDiff: Return the portions of two geometries that do not intersect with each other ...
... ConvexHull: Smallest convex geometric set enclosing the geometry SymmDiff: Return the portions of two geometries that do not intersect with each other ...
Automating Layout of Relational Databases
... that are co-accessed during query execution. For workloads containing queries that co-access multiple objects, the gain in I/O performance by choosing an appropriate database layout other than full striping can be significant. While the specific problem of high random I/O accesses due to large co-ac ...
... that are co-accessed during query execution. For workloads containing queries that co-access multiple objects, the gain in I/O performance by choosing an appropriate database layout other than full striping can be significant. While the specific problem of high random I/O accesses due to large co-ac ...
Chapter 5: Other Relational Languages
... customers who have an account at the Perryridge branch. We need to: Join depositor and account. Project customer-name, account-number and balance. ...
... customers who have an account at the Perryridge branch. We need to: Join depositor and account. Project customer-name, account-number and balance. ...
SQL Stored Procedures
... Manage the replication environment Tune the SQL Server system for the optimal performance Troubleshoot any SQL Server problems ...
... Manage the replication environment Tune the SQL Server system for the optimal performance Troubleshoot any SQL Server problems ...
ppt
... customers who have an account at the Perryridge branch. We need to: Join depositor and account. Project customer-name, account-number and balance. ...
... customers who have an account at the Perryridge branch. We need to: Join depositor and account. Project customer-name, account-number and balance. ...
Lecture-24-30 (sections 9.1-9.7)
... to access value of field for current record in recordset to check if we are at the end of the recordset ...
... to access value of field for current record in recordset to check if we are at the end of the recordset ...
Introduction to Database Systems
... Search key is not the same as key (minimal set of fields that uniquely identify a record in a relation) ...
... Search key is not the same as key (minimal set of fields that uniquely identify a record in a relation) ...
Product
... ▪ Conceptual Models enhance the communication between IT developers and clients (the final users): no IT knowledge is required to understand such visual language. It schematizes the Multidimensional view over the data. ▪ An instance of a conceptual model is called conceptual schema, that is a concis ...
... ▪ Conceptual Models enhance the communication between IT developers and clients (the final users): no IT knowledge is required to understand such visual language. It schematizes the Multidimensional view over the data. ▪ An instance of a conceptual model is called conceptual schema, that is a concis ...
Document
... • If the changes do not yield expected results, they can be undone and the component restored to its original state • Reason OODBMS is such a strong player in the CAD and computer-aided manufacturing ...
... • If the changes do not yield expected results, they can be undone and the component restored to its original state • Reason OODBMS is such a strong player in the CAD and computer-aided manufacturing ...
presentation source
... Performance must equal/exceed relational equivalents Design amenable to future plans w.r.t. type evolution Structured types must be supported in columns (someday) Localize initial changes to query compiler where possible ...
... Performance must equal/exceed relational equivalents Design amenable to future plans w.r.t. type evolution Structured types must be supported in columns (someday) Localize initial changes to query compiler where possible ...
Solutions
... customer was running a database with NO backups and a disaster hit them. Here is the complete story • Disaster Recovery Stories by Alejandro Vargas • OTN Forums is the other good place ...
... customer was running a database with NO backups and a disaster hit them. Here is the complete story • Disaster Recovery Stories by Alejandro Vargas • OTN Forums is the other good place ...