CS122_SUMMER_2009_LECTURE_09a
... If you delete a record, and that record is referenced somewhere else, you have an orphaned record! Best solution is to only delete records from the XRefDirectorsMovies table and leave the People table alone since these people may be referenced somewhere else. DELETE FROM XRefDirectorsMovies; ...
... If you delete a record, and that record is referenced somewhere else, you have an orphaned record! Best solution is to only delete records from the XRefDirectorsMovies table and leave the People table alone since these people may be referenced somewhere else. DELETE FROM XRefDirectorsMovies; ...
kemme - Data Systems Group
... Upon reception of write set of T on remote node Lock Phase: request all write locks in a single step; if there is a local transaction T’ with conflicting lock and T’ is still in local phase or send phase, abort T’. If T’ in send phase, multicast abort Write Phase: apply updates of T Upon rec ...
... Upon reception of write set of T on remote node Lock Phase: request all write locks in a single step; if there is a local transaction T’ with conflicting lock and T’ is still in local phase or send phase, abort T’. If T’ in send phase, multicast abort Write Phase: apply updates of T Upon rec ...
Configuring a JDBC Resource for IBM DB2/iSeries in
... The catalog object is not relevant for all relational databases. For example, IBM DB2/iSeries does not use this object. ...
... The catalog object is not relevant for all relational databases. For example, IBM DB2/iSeries does not use this object. ...
Using SAS® Software's Metadata to Generate ETL Precursor Files in a Heterogeneous Database System
... An analysis of the usability of a variety of tools was performed. For example, Toad (originally this was an acronym standing for “Tool for Oracle Application Developers,” but in 2004 “Toad” was registered as a trademark and was no longer considered an acronym) was found to be a very powerful and fun ...
... An analysis of the usability of a variety of tools was performed. For example, Toad (originally this was an acronym standing for “Tool for Oracle Application Developers,” but in 2004 “Toad” was registered as a trademark and was no longer considered an acronym) was found to be a very powerful and fun ...
transaction - Dalhousie University
... Write a transaction start record when the transaction starts When a write operation occurs, store the before-image and after-image in the log file Once the log file is written, write the changes to the database buffers Updates to the database are written when the database buffers are flushed to the ...
... Write a transaction start record when the transaction starts When a write operation occurs, store the before-image and after-image in the log file Once the log file is written, write the changes to the database buffers Updates to the database are written when the database buffers are flushed to the ...
Querying the Uncertain Position of Moving Objects
... The answer to future queries is usually tentative in the following sense. Suppose that the answer to the above query Q contains airplane a. It is possible that after the answer is presented to the user, the motion vector of a changes in a way that steers a away from the airport, and the database is ...
... The answer to future queries is usually tentative in the following sense. Suppose that the answer to the above query Q contains airplane a. It is possible that after the answer is presented to the user, the motion vector of a changes in a way that steers a away from the airport, and the database is ...
Maintaining the Control File
... '$HOME/ORADATA/u01/ctrl01.ctl', '$HOME/ORADATA/u02/ctrl02.ctl' SCOPE=SPFILE; ...
... '$HOME/ORADATA/u01/ctrl01.ctl', '$HOME/ORADATA/u02/ctrl02.ctl' SCOPE=SPFILE; ...
Conceptual Model Based Normalization of XML Views
... design an optimal schema of the shared database. Even though we can use a native XML database to store the data in an XML representation, we can not usually store it directly as represented by the XML views. It is because the XML views can contain redundancies which means that the same data can be d ...
... design an optimal schema of the shared database. Even though we can use a native XML database to store the data in an XML representation, we can not usually store it directly as represented by the XML views. It is because the XML views can contain redundancies which means that the same data can be d ...
week 5 Distributed Data Management presentation
... of a specific application, as illustrated in the histogram on the right. Since we do however not consider fragmentation of a table into single tuples, this description is at a too fine granularity. Also one can see that for many tuples the access frequency will be the same (as a consequence of the s ...
... of a specific application, as illustrated in the histogram on the right. Since we do however not consider fragmentation of a table into single tuples, this description is at a too fine granularity. Also one can see that for many tuples the access frequency will be the same (as a consequence of the s ...
An Architecture for Homogenizing Federated Databases
... difficult for organizations to take full advantage of newer technologies, such as client-server architectures, and current software, such as relational DBMS. The migration of legacy IS to very flexible modern computing environment is an important undertaking that we will address in this paper. One o ...
... difficult for organizations to take full advantage of newer technologies, such as client-server architectures, and current software, such as relational DBMS. The migration of legacy IS to very flexible modern computing environment is an important undertaking that we will address in this paper. One o ...
Information System Design Laboratory Laboratory Manual Third Year - Information Technology
... It is displayed just below the Menu Bar in the Visual Basic Environment. It displays a sequence of buttons. The options available in the toolbar are available in the menus. It might be time consuming to access the menu items, instead of that the tool bar buttons can be clicked in less time to perfor ...
... It is displayed just below the Menu Bar in the Visual Basic Environment. It displays a sequence of buttons. The options available in the toolbar are available in the menus. It might be time consuming to access the menu items, instead of that the tool bar buttons can be clicked in less time to perfor ...
1. Introduction - Boston College Computer Science Department
... convenient and powerful way to define this map, because it provides not just an evaluation mechanism, but also query, and (to some degree) update and trigger capabilities. However, SQL views do not map the critical metadata (e.g., security, source attribution, and quality information) between data s ...
... convenient and powerful way to define this map, because it provides not just an evaluation mechanism, but also query, and (to some degree) update and trigger capabilities. However, SQL views do not map the critical metadata (e.g., security, source attribution, and quality information) between data s ...
Customizing SSMS reports - UK SQL Server User Group
... Settings\%username%\Application Data\Microsoft\Microsoft SQL Server\90\Tools\Shell\Reports.xml to remove the entry ...
... Settings\%username%\Application Data\Microsoft\Microsoft SQL Server\90\Tools\Shell\Reports.xml to remove the entry ...
original
... Index file degradation problem is solved by using B+-Tree indices. Data file degradation problem is solved by using B+Tree File Organization. The leaf nodes in a B+-tree file organization store records, instead of pointers. Since records are larger than pointers, the maximum number of records ...
... Index file degradation problem is solved by using B+-Tree indices. Data file degradation problem is solved by using B+Tree File Organization. The leaf nodes in a B+-tree file organization store records, instead of pointers. Since records are larger than pointers, the maximum number of records ...
Forensic data recovery from the Windows Search Database
... a schema (or data definition) which sets out all the data items that may be stored in a single database record. In conventional database terminology a complete single record may be described as a ‘row’, and individual data items as a ‘column’; here the terms record and data item or field are preferr ...
... a schema (or data definition) which sets out all the data items that may be stored in a single database record. In conventional database terminology a complete single record may be described as a ‘row’, and individual data items as a ‘column’; here the terms record and data item or field are preferr ...
Report Training Part1
... Fields are of a certain datatype Data types are important for using fields in variables • When using the report wizard iReport will attempt to extract the fields from the query • Based on the column type in the datasource iReport will attempt to pick the best data type for the field. • You can cha ...
... Fields are of a certain datatype Data types are important for using fields in variables • When using the report wizard iReport will attempt to extract the fields from the query • Based on the column type in the datasource iReport will attempt to pick the best data type for the field. • You can cha ...
And all of a sudden: Main Memory Is Less Expensive Than Disk
... benchmarks by Intel have shown that such a system achieves a bandwidth of up to ∼246 GB/s for the STREAM Triad Benchmark1 . Any bandwidth exceeding the maximum of 246 GB/s requires a multi-node setup to scale. We assume that the memory size has to be at least a factor of two larger than the data set ...
... benchmarks by Intel have shown that such a system achieves a bandwidth of up to ∼246 GB/s for the STREAM Triad Benchmark1 . Any bandwidth exceeding the maximum of 246 GB/s requires a multi-node setup to scale. We assume that the memory size has to be at least a factor of two larger than the data set ...
MEDLINE in Oracle XML
... - can use an Oracle text index, support Xpath queries - flexible when schemas change object-relational storage - better performance, index specific fields - access to SQL features (constraints, indices etc) ...
... - can use an Oracle text index, support Xpath queries - flexible when schemas change object-relational storage - better performance, index specific fields - access to SQL features (constraints, indices etc) ...
Fast Track Data Warehouse Reference
... Different database application workloads can require very different component architectures to achieve optimal resource balance. A classic example of this can be found in the contrast between discrete lookup based OLTP workloads and scan-intensive analytical data warehousing. OLTP use cases are heav ...
... Different database application workloads can require very different component architectures to achieve optimal resource balance. A classic example of this can be found in the contrast between discrete lookup based OLTP workloads and scan-intensive analytical data warehousing. OLTP use cases are heav ...
Resume - State Public Services Tribunal
... representatives of those countries associated to this region in order to validate the different aspects of the financial state of each entity however there are two main topics included in all these reviews: the actual figures associated to each financial indicator (quantitative data) and the detail ...
... representatives of those countries associated to this region in order to validate the different aspects of the financial state of each entity however there are two main topics included in all these reviews: the actual figures associated to each financial indicator (quantitative data) and the detail ...
Hallmark Cards Boosts Merchandiser Efficiency by 10 Percent with
... The INFOLink application was developed by using Microsoft® Visual Studio® .NET 2003 development system and the Microsoft .NET Compact Framework. The solution includes Microsoft SQL ServerTM 2000 Windows® CE Edition (SQL Server CE) version 2.0 running on the Microsoft Windows CE operating system vers ...
... The INFOLink application was developed by using Microsoft® Visual Studio® .NET 2003 development system and the Microsoft .NET Compact Framework. The solution includes Microsoft SQL ServerTM 2000 Windows® CE Edition (SQL Server CE) version 2.0 running on the Microsoft Windows CE operating system vers ...
Preventing Fallen ANGELs: Redundancy, Backup, Recovery
... Looking for faster recovery time, less potential data loss, through increased redundancy. Config 1: Identical production and development systems, different locations. Config 2: Identical production and dev systems, shared data (data filer), Load ...
... Looking for faster recovery time, less potential data loss, through increased redundancy. Config 1: Identical production and development systems, different locations. Config 2: Identical production and dev systems, shared data (data filer), Load ...
Replicating Oracle Databases with Quest SharePlex Compared to
... The goal of ESG Lab reports is to educate IT professionals about data center technology products for companies of all types and sizes. ESG Lab reports are not meant to replace the evaluation process that should be conducted before making purchasing decisions, but rather to provide insight into these ...
... The goal of ESG Lab reports is to educate IT professionals about data center technology products for companies of all types and sizes. ESG Lab reports are not meant to replace the evaluation process that should be conducted before making purchasing decisions, but rather to provide insight into these ...
Security and the Data Warehouse
... Virtual Private Database (VPD) is server-enforced, fine-grained access control, together with secure application context. By dynamically appending SQL statements with a predicate, VPD limits access to data at the row level and ties a security policy to the database object itself (specifically, a tab ...
... Virtual Private Database (VPD) is server-enforced, fine-grained access control, together with secure application context. By dynamically appending SQL statements with a predicate, VPD limits access to data at the row level and ties a security policy to the database object itself (specifically, a tab ...
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.