Analysis of parallel scan processing in Shared Disk database systems
... blocks or block sets and can be implemented outside the DBMS, e.g., within a disk array [PGK88]. Such an approach supports I/O parallelism for large read operations, but can cause performance problems in combination with processing parallelism. This is because if the DBMS has no information on the p ...
... blocks or block sets and can be implemented outside the DBMS, e.g., within a disk array [PGK88]. Such an approach supports I/O parallelism for large read operations, but can cause performance problems in combination with processing parallelism. This is because if the DBMS has no information on the p ...
ppt
... Search Key – a set of attributes used to look up records in a file. An index file consists of index records of the form (search-key, pointer) Index files are typically much smaller than the original file Two basic kinds of indices: ...
... Search Key – a set of attributes used to look up records in a file. An index file consists of index records of the form (search-key, pointer) Index files are typically much smaller than the original file Two basic kinds of indices: ...
mysql
... a wide range of commands to the database server such as creating and deleting databases and tables, searching for data, adding new rows and much more. ...
... a wide range of commands to the database server such as creating and deleting databases and tables, searching for data, adding new rows and much more. ...
Structured Query Language
... user to browse, select, and act upon any of the objects within the server. It can be used to visually observe and analyze query plans and optimize the database performance, among others. SQL Server Management Studio can also be used to create a new database, alter any existing database schema by ...
... user to browse, select, and act upon any of the objects within the server. It can be used to visually observe and analyze query plans and optimize the database performance, among others. SQL Server Management Studio can also be used to create a new database, alter any existing database schema by ...
Institutionen för datavetenskap Usage of databases in ARINC 653-compatible real-time systems Martin Fri
... at Department of Computer & Information science at Linköping University. The report starts with a description of the thesis and some background information. Following this, the system design and work results are described. Finally, the document ends with an analysis, and a discussion and conclusion ...
... at Department of Computer & Information science at Linköping University. The report starts with a description of the thesis and some background information. Following this, the system design and work results are described. Finally, the document ends with an analysis, and a discussion and conclusion ...
CSIS0402 System Architecture Distributed Computing
... OLE DB uses COMobjects, rather complex ADO (Active Data Objects): another standard by Microsoft – A simpler COMRemote DB access compliant interface – Uses OLE DB, and OLE DB uses an ODBC data provider ...
... OLE DB uses COMobjects, rather complex ADO (Active Data Objects): another standard by Microsoft – A simpler COMRemote DB access compliant interface – Uses OLE DB, and OLE DB uses an ODBC data provider ...
0706584321.pdf
... can be answered using the information available in the authorization views that are accessible to the user. If found to be valid, the query is allowed to execute as originally specified, without any modification, otherwise it is rejected. An obvious way to enforce access control using authorization ...
... can be answered using the information available in the authorization views that are accessible to the user. If found to be valid, the query is allowed to execute as originally specified, without any modification, otherwise it is rejected. An obvious way to enforce access control using authorization ...
PowerPointova predstavitev
... • Makes a transactional copy of your database to a database with a new name on the same server, or to another server • No downtime on the source database • Transactional equivalent at the END of the copy • Only works within the same datacenter • Must have matching credentials on the servers • Must h ...
... • Makes a transactional copy of your database to a database with a new name on the same server, or to another server • No downtime on the source database • Transactional equivalent at the END of the copy • Only works within the same datacenter • Must have matching credentials on the servers • Must h ...
SQL Server 2008 Consolidation
... minimize the costs associated with maintaining and developing their IT infrastructures. While cutting budgets is one way that this can be achieved, making the right strategic investments in their IT infrastructures will help companies to reduce costs and at the same time to develop and maintain thei ...
... minimize the costs associated with maintaining and developing their IT infrastructures. While cutting budgets is one way that this can be achieved, making the right strategic investments in their IT infrastructures will help companies to reduce costs and at the same time to develop and maintain thei ...
Document
... db_pointer can be used, and the shadow copy can be deleted. The shadow-database scheme: – Assumes that only one transaction is active at a time. – Assumes disks do not fail – Useful for text editors, but ...
... db_pointer can be used, and the shadow copy can be deleted. The shadow-database scheme: – Assumes that only one transaction is active at a time. – Assumes disks do not fail – Useful for text editors, but ...
RDFKB: Efficient Support For RDF Inference Queries and Knowledge Management
... performance penalty. Therefore, while RDFKB's design is not contingent upon using this particular database storage scheme, our solution is implemented and tested using the RDFJoin technology. RDFJoin stores the RDF triples in five base tables: the SOIDTable, the PropertyIDTable, the POTable, the SOT ...
... performance penalty. Therefore, while RDFKB's design is not contingent upon using this particular database storage scheme, our solution is implemented and tested using the RDFJoin technology. RDFJoin stores the RDF triples in five base tables: the SOIDTable, the PropertyIDTable, the POTable, the SOT ...
as a PDF
... (such as operating systems), and communication systems. Researchers and developers have been working on resolving such heterogeneities for many years. Several commercial distributed DBMSs are available that run in heterogeneous hardware and system software environments. The types of heterogeneities ...
... (such as operating systems), and communication systems. Researchers and developers have been working on resolving such heterogeneities for many years. Several commercial distributed DBMSs are available that run in heterogeneous hardware and system software environments. The types of heterogeneities ...
The Oracle Database (commonly referred to as Oracle RDBMS or
... Global Area). The SGA typically holds cache information such as data-buffers, SQL commands, and user information. In addition to storage, the database consists of online redo logs (or logs), which hold transactional history. Processes can in turn archive the online redo logs into archive logs (offli ...
... Global Area). The SGA typically holds cache information such as data-buffers, SQL commands, and user information. In addition to storage, the database consists of online redo logs (or logs), which hold transactional history. Processes can in turn archive the online redo logs into archive logs (offli ...
MVC Design - KSU Web Home
... 4.3.3 JDBC Application Examples MySQL database management system was released in January 1998. It is an open source relational database management system (RDBMS). MySQL is free, and may be downloaded from at MySQL.http://dev.mysql.com/downloads/mysql/5.0.html. The current version is 5.0. After you ...
... 4.3.3 JDBC Application Examples MySQL database management system was released in January 1998. It is an open source relational database management system (RDBMS). MySQL is free, and may be downloaded from at MySQL.http://dev.mysql.com/downloads/mysql/5.0.html. The current version is 5.0. After you ...
OLTP performance comparison: Solid-state drives vs. hard disk drives
... that produced the median of the three OPM results. In addition, we monitored server performance statistics using the Reliability and Performance Monitor on the server. Our experiments showed that this function did not affect the performance of the test. We used these results to verify that neither t ...
... that produced the median of the three OPM results. In addition, we monitored server performance statistics using the Reliability and Performance Monitor on the server. Our experiments showed that this function did not affect the performance of the test. We used these results to verify that neither t ...
Creating Test Environments
... Stop the application server(s), process scheduler(s) and any cron processes Create new schema or drop all objects (tables, views, triggers, etc) in the target schema ...
... Stop the application server(s), process scheduler(s) and any cron processes Create new schema or drop all objects (tables, views, triggers, etc) in the target schema ...
DataFeed Loader User Guide V2.5.4.0
... The FactSet DataFeed Loader (“Loader”) is a client program designed to expedite implementation and provide a reliable means of managing the FactSet Standard DataFeed products (“DataFeed”). The Loader handles all core requirements for proper DataFeed consumption, including initial database setup, sch ...
... The FactSet DataFeed Loader (“Loader”) is a client program designed to expedite implementation and provide a reliable means of managing the FactSet Standard DataFeed products (“DataFeed”). The Loader handles all core requirements for proper DataFeed consumption, including initial database setup, sch ...
Weak Entity Sets
... Use of entity sets vs. relationship sets Possible guideline is to designate a relationship set to describe an action that occurs between entities Binary versus n-ary relationship sets Although it is possible to replace any nonbinary (n-ary, for n > 2) relationship set by a number of distinct bin ...
... Use of entity sets vs. relationship sets Possible guideline is to designate a relationship set to describe an action that occurs between entities Binary versus n-ary relationship sets Although it is possible to replace any nonbinary (n-ary, for n > 2) relationship set by a number of distinct bin ...
Converting Adabas to IBM DB2 for z/OS with
... Increased synergy with security Utilities performance SQL flexibility Uses tables larger than 4 billion rows Use of DB2 for z/OS features, such as partitioning and parallelism Data sharing Large objects Stored procedures Triggers Referential constraints ...
... Increased synergy with security Utilities performance SQL flexibility Uses tables larger than 4 billion rows Use of DB2 for z/OS features, such as partitioning and parallelism Data sharing Large objects Stored procedures Triggers Referential constraints ...
Effective Quotation - Informatics Homepages Server
... be interpreted as a quadratic nested loop. (Efficient in-memory implementations of query expressions are also possible [16].) ...
... be interpreted as a quadratic nested loop. (Efficient in-memory implementations of query expressions are also possible [16].) ...