Distributed Databases - Internet Database Lab.
... covers distributed database systems, revisiting the issues of database design, transaction management, and query evaluation and optimization, in the context of distributed databases. The chapter also covers issues of system availability during failures and describes the LDAP directory system. ...
... covers distributed database systems, revisiting the issues of database design, transaction management, and query evaluation and optimization, in the context of distributed databases. The chapter also covers issues of system availability during failures and describes the LDAP directory system. ...
Scaling Multicore Databases via Constrained Parallel Execution
... maximally take advantage of the CPU resources of multiple cores has become an important research problem. A key challenge facing multi-core databases is how to support serializable transactions while maximizing parallelism so as to scale to many CPU cores. Popular concurrency control schemes are bas ...
... maximally take advantage of the CPU resources of multiple cores has become an important research problem. A key challenge facing multi-core databases is how to support serializable transactions while maximizing parallelism so as to scale to many CPU cores. Popular concurrency control schemes are bas ...
cos346day19
... 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 ...
... 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 ...
Architecture
... A conceptual framework whose purpose is to divide standardization work into manageable pieces and to show at a general level how these pieces are related to one another. ...
... A conceptual framework whose purpose is to divide standardization work into manageable pieces and to show at a general level how these pieces are related to one another. ...
Slide 1
... • Distributed databases make it possible for a transaction to access data at several sites • Final COMMIT must not be issued until all sites have committed their parts of the transaction • Two-phase commit protocol requires each individual DP’s transaction log entry be written before the database fr ...
... • Distributed databases make it possible for a transaction to access data at several sites • Final COMMIT must not be issued until all sites have committed their parts of the transaction • Two-phase commit protocol requires each individual DP’s transaction log entry be written before the database fr ...
Full Article
... there. In a huge transactional database like retailer database it is quite common that several items has been sale or purchase at the same time therefore the database must contains various transactions which include same set of items. Thus by taking benefits of such type of transactions, it has to b ...
... there. In a huge transactional database like retailer database it is quite common that several items has been sale or purchase at the same time therefore the database must contains various transactions which include same set of items. Thus by taking benefits of such type of transactions, it has to b ...
JDBC
... • The goal of ODBC and JDBC software systems is to allow connecting an application program to almost any database system • Applications using ODBC or JDBC are DBMS independent on both source code and executable code level (providing that the SQL standard is satisfied) • This independence is achieved ...
... • The goal of ODBC and JDBC software systems is to allow connecting an application program to almost any database system • Applications using ODBC or JDBC are DBMS independent on both source code and executable code level (providing that the SQL standard is satisfied) • This independence is achieved ...
ppt - Spatial Database Group
... Multi-media, active, distributed processing, more powerful operators, data warehouse processing, XML enabled, cloud computing ...
... Multi-media, active, distributed processing, more powerful operators, data warehouse processing, XML enabled, cloud computing ...
Data Sheet
... Multi-User Concurrency, Persistence and Durability Applications deploy TimesTen Cache for multi-user and multi-threaded environment in the application tier. Applications access the cache tables using standard SQL and PL/SQL via JDBC, ODBC, ODP.NET, Oracle Call Interface (OCI) and Pro*C/C++ programmi ...
... Multi-User Concurrency, Persistence and Durability Applications deploy TimesTen Cache for multi-user and multi-threaded environment in the application tier. Applications access the cache tables using standard SQL and PL/SQL via JDBC, ODBC, ODP.NET, Oracle Call Interface (OCI) and Pro*C/C++ programmi ...
DatalogRA : Datalog with Recursive Aggregation in the Spark RDD
... [4] and Giraph, or in-memory systems like Spark [12]. These frameworks typically do their computations in several iterations, where each iteration consists of a computation distributed over different nodes. When an algorithm requires many iterations, an important distinction is whether between the i ...
... [4] and Giraph, or in-memory systems like Spark [12]. These frameworks typically do their computations in several iterations, where each iteration consists of a computation distributed over different nodes. When an algorithm requires many iterations, an important distinction is whether between the i ...
Chapter 19: Distributed Databases
... Database systems that run on each site are independent of each other Transactions may access data at one or more sites ...
... Database systems that run on each site are independent of each other Transactions may access data at one or more sites ...
Kroenke-Auer-DBP-e11-PPT
... 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. ...
SQLSaturday_Slide_Deck_Rohan
... • Using backups we initiate other SQL Server disaster recovery features such as the log shipping, replication and always on ...
... • Using backups we initiate other SQL Server disaster recovery features such as the log shipping, replication and always on ...
Database-Friendly Security
... on database host servers at the operating system level, and these agents monitor all database activity. The design is non-intrusive, easy to install, and consumes only small amounts of CPU resources (less than 5 percent of a single core/CPU per monitored instance—even on multiple processor machines) ...
... on database host servers at the operating system level, and these agents monitor all database activity. The design is non-intrusive, easy to install, and consumes only small amounts of CPU resources (less than 5 percent of a single core/CPU per monitored instance—even on multiple processor machines) ...
presentation source
... • Done via better utilization of resources: – While one processes is doing a disk read, another can be using the CPU or reading another disk. • DANGER DANGER! Concurrency could lead to incorrectness! – Must carefully manage concurrent data access. – There’s (much!) more here than the usual OS tricks ...
... • Done via better utilization of resources: – While one processes is doing a disk read, another can be using the CPU or reading another disk. • DANGER DANGER! Concurrency could lead to incorrectness! – Must carefully manage concurrent data access. – There’s (much!) more here than the usual OS tricks ...
Parallel Query Processing in Shared Disk Database Systems
... rpsB were already achieved on a nCUBE-2 system with 64 nodes [Or91]. Recently, more than 1 KtpsA was achieved on a Sequent configuration of 2 nodes with 23 processors each. In addition to nCUBE and Sequent, other microprocessor-based "cluster'' architectures also suppon the shared-disk paradigm (Pyr ...
... rpsB were already achieved on a nCUBE-2 system with 64 nodes [Or91]. Recently, more than 1 KtpsA was achieved on a Sequent configuration of 2 nodes with 23 processors each. In addition to nCUBE and Sequent, other microprocessor-based "cluster'' architectures also suppon the shared-disk paradigm (Pyr ...
Database Systems Session 2 – Main Theme Relational Data Model
... It is important also to think carefully about the correct (or just good!) choice of which tables to use and what should be their structure This we should do in order to have good logical design, not worrying (yet) about efficient storage in files Our initial design suffers (for pedagogical rea ...
... It is important also to think carefully about the correct (or just good!) choice of which tables to use and what should be their structure This we should do in order to have good logical design, not worrying (yet) about efficient storage in files Our initial design suffers (for pedagogical rea ...
Clay: Fine-Grained Adaptive Partitioning for General Database
... routing table, Schism creates a decision tree that simplifies the individual mapping of tuples into a set of range partitions. Finally, in the final validation step, Schism compares different solutions obtained in the previous steps and selects the one having the lowest rate of distributed transacti ...
... routing table, Schism creates a decision tree that simplifies the individual mapping of tuples into a set of range partitions. Finally, in the final validation step, Schism compares different solutions obtained in the previous steps and selects the one having the lowest rate of distributed transacti ...
Chapter 21
... • Consistency preservation: Specifies that each transaction does a correct action on the database on its own. Application programmers and DBMS constraint enforcement are responsible for this. • Isolation: Responsibility of the concurrency control protocol. • Durability or permanency: Enforced by the ...
... • Consistency preservation: Specifies that each transaction does a correct action on the database on its own. Application programmers and DBMS constraint enforcement are responsible for this. • Isolation: Responsibility of the concurrency control protocol. • Durability or permanency: Enforced by the ...
![37] C. Mohan and F. Levine. ARIES/IM an e cient](http://s1.studyres.com/store/data/007913026_1-c3d89e6fbde14ed6f6670e835f6e29bb-300x300.png)
37] C. Mohan and F. Levine. ARIES/IM an e cient
... In general, the search proceeds as described in Section 7.3.1 except that each node visited is pushed onto the stack. We describe only the search for a \greater-than" value, though all comparisons are supported in the implementation. After a lock on the target key is obtained, validation is performe ...
... In general, the search proceeds as described in Section 7.3.1 except that each node visited is pushed onto the stack. We describe only the search for a \greater-than" value, though all comparisons are supported in the implementation. After a lock on the target key is obtained, validation is performe ...
Chapter 19: Distributed Databases
... share no physical component Database systems that run on each site are independent of each ...
... share no physical component Database systems that run on each site are independent of each ...
Chapter 22
... Database systems that run on each site are independent of each other Transactions may access data at one or more sites ...
... Database systems that run on each site are independent of each other Transactions may access data at one or more sites ...
SQL Scripts - InkaNegocios
... • host is the host name or IP address of the computer that is running Oracle Database XE • port (optional) is the TCP port number on which the Oracle Net listener is listening. If not specified, the default port number 1521 is assumed. • service_name (optional) is the name of the database service to ...
... • host is the host name or IP address of the computer that is running Oracle Database XE • port (optional) is the TCP port number on which the Oracle Net listener is listening. If not specified, the default port number 1521 is assumed. • service_name (optional) is the name of the database service to ...
Chapter 1
... This searching capability has to be backed by a database application. There is no other way that Amazon could provide acceptable performance. Looking at the Power Search keywords, it appears that they have written an application that translates user-friendly terms for search criteria into predicates ...
... This searching capability has to be backed by a database application. There is no other way that Amazon could provide acceptable performance. Looking at the Power Search keywords, it appears that they have written an application that translates user-friendly terms for search criteria into predicates ...