Flashback Transaction Query
... Provides a way to audit the rows of a table and retrieve information about the transactions that changed the rows. Retrieve all committed versions of the rows that exist or ever existed between the time the query was issued and a point in time in the past Use the transaction ID to perform transactio ...
... Provides a way to audit the rows of a table and retrieve information about the transactions that changed the rows. Retrieve all committed versions of the rows that exist or ever existed between the time the query was issued and a point in time in the past Use the transaction ID to perform transactio ...
Skew-aware automatic database partitioning in shared - H
... the performance difference increases with larger cluster sizes: at 64 partitions, the impact is approximately 2×. This is because singlepartition transactions in H-Store execute to completion in a single thread, and thus do not incur the overhead of traditional concurrency control schemes [24]. For ...
... the performance difference increases with larger cluster sizes: at 64 partitions, the impact is approximately 2×. This is because singlepartition transactions in H-Store execute to completion in a single thread, and thus do not incur the overhead of traditional concurrency control schemes [24]. For ...
SSSS - Computer Science
... Transaction Transparency: A user can run an arbitrary transaction that updates data at any number of sites, and the transaction behaves exactly like a local transaction and atomicity is maintained. ...
... Transaction Transparency: A user can run an arbitrary transaction that updates data at any number of sites, and the transaction behaves exactly like a local transaction and atomicity is maintained. ...
Creating A Back-Up & Recovery Plan
... point where the database finishes. Backs up all tables, indexes, system tables and the database object in those tables ...
... point where the database finishes. Backs up all tables, indexes, system tables and the database object in those tables ...
Enterprise Application Ingetration
... ODBC is more a standard than a product, that Microsoft created a few years ago. It’s a CLI that simplifies database access from Windows (as well as a few other OS) by allowing a developer to make a single API call that works with most relational databases, along with a few that don’t follow the rela ...
... ODBC is more a standard than a product, that Microsoft created a few years ago. It’s a CLI that simplifies database access from Windows (as well as a few other OS) by allowing a developer to make a single API call that works with most relational databases, along with a few that don’t follow the rela ...
Generate database change script
... (Data Definition Language) scripts with commands of updates. Visual Paradigm is capable in updating database, or just to generate the DDL required, by comparing differences between the design, which is the ERD(s), and the database, and to generate the DDL scripts accordingly. In addition to generati ...
... (Data Definition Language) scripts with commands of updates. Visual Paradigm is capable in updating database, or just to generate the DDL required, by comparing differences between the design, which is the ERD(s), and the database, and to generate the DDL scripts accordingly. In addition to generati ...
Abstract - The number of open source database management
... assessment of database systems. Considering the number of database performance assessment benchmarks available, it is quite a daunting task to subject each database system under consideration to all the available benchmark tests and tools and then make a comparison of the results. [2, 3, 4, 5, 6]. S ...
... assessment of database systems. Considering the number of database performance assessment benchmarks available, it is quite a daunting task to subject each database system under consideration to all the available benchmark tests and tools and then make a comparison of the results. [2, 3, 4, 5, 6]. S ...
lock-X
... The participation constraint specifies whether the existence of an entity depends on its being related to another entity via the relationship type. The constraint specifies the minimum number of relationship instances that each entity can participate in. There are two types of participation co ...
... The participation constraint specifies whether the existence of an entity depends on its being related to another entity via the relationship type. The constraint specifies the minimum number of relationship instances that each entity can participate in. There are two types of participation co ...
XA Transaction and Its implementation on IDS through JDBC
... transfer money between his checking and savings accounts, both databases have to participate in the transaction or the bank risks losing track of some money. Does XA transaction is needed even if the application uses a single database? The problem is that most developers think, "Well, my application ...
... transfer money between his checking and savings accounts, both databases have to participate in the transaction or the bank risks losing track of some money. Does XA transaction is needed even if the application uses a single database? The problem is that most developers think, "Well, my application ...
SQL Server AlwaysOn
... • Further scale out read workloads across (possibly geo-distributed) replicas • Use readable secondaries despite network failures (important in geo-distributed ...
... • Further scale out read workloads across (possibly geo-distributed) replicas • Use readable secondaries despite network failures (important in geo-distributed ...
slides
... + Lua is mature and very stable – critical core code is not expanding. + Most databases realistically require a service outage when a stored procedure is added or modified, and that change isn’t transactional. + VHAD requires more dynamic behavior there, because anything that compromises even a sing ...
... + Lua is mature and very stable – critical core code is not expanding. + Most databases realistically require a service outage when a stored procedure is added or modified, and that change isn’t transactional. + VHAD requires more dynamic behavior there, because anything that compromises even a sing ...
the shortest path algorithm performance comparison in graph and
... transportation network data. Many of them provide navigation models which permit managing networks and perform network operations [5]. Many researchers have been working with such systems and there are many examples and applications of databasebased routing systems in the traffic and transportation ...
... transportation network data. Many of them provide navigation models which permit managing networks and perform network operations [5]. Many researchers have been working with such systems and there are many examples and applications of databasebased routing systems in the traffic and transportation ...
as a PDF
... and returns this pointer to the transaction. There is also an overloaded C++ delete operator for removing objects. ...
... and returns this pointer to the transaction. There is also an overloaded C++ delete operator for removing objects. ...
Introduction to DB
... ©Silberschatz, Korth and Sudarshan See www.db-book.com for conditions on re-use ...
... ©Silberschatz, Korth and Sudarshan See www.db-book.com for conditions on re-use ...
Oracle Database Administration - 331 IT
... everything you need to build/maintain a relational DB ...
... everything you need to build/maintain a relational DB ...
Data Synchronization Between Two Securent Databases
... Enter SYS user of second site: Enter password of SYS user of second site: Enter SECURENT user: This SQL script creates streams admin user, sets up the streams for 2Way replication between two databases and start the replication. Following processes will be occurred internally during execution of th ...
... Enter SYS user of second site: Enter password of SYS user of second site: Enter SECURENT user: This SQL script creates streams admin user, sets up the streams for 2Way replication between two databases and start the replication. Following processes will be occurred internally during execution of th ...
slides18-stm
... is in the IO monad is baked in to the language. There is no need to mark anything in the type system because IO is everywhere. In Haskell, the programmer can choose when to live in the IO monad and when to live in the realm of pure functional programming. Interesting perspective: It is not Haske ...
... is in the IO monad is baked in to the language. There is no need to mark anything in the type system because IO is everywhere. In Haskell, the programmer can choose when to live in the IO monad and when to live in the realm of pure functional programming. Interesting perspective: It is not Haske ...
David Walker
... There is a lot of research going on in the compiler and architecture communities to optimize STM. This work typically assumes transactions are smallish and have low contention. If these assumptions are wrong, performance can degrade drastically. We need more experience with “real” workloads an ...
... There is a lot of research going on in the compiler and architecture communities to optimize STM. This work typically assumes transactions are smallish and have low contention. If these assumptions are wrong, performance can degrade drastically. We need more experience with “real” workloads an ...
Relational Database Design
... Chapter 4: Relational Database Design Information Technology Department Bryar Hassan (MSc Eng.) [email protected] ...
... Chapter 4: Relational Database Design Information Technology Department Bryar Hassan (MSc Eng.) [email protected] ...
III. Current Trends - UCL Computer Science
... • Common SQL API :allows client applications to be written that do not need to know vendor of DBMS they are accessing. • Common database protocol: enables DBMS from one vendor to communicate directly with DBMS from another vendor without need for a gateway. •Common network protocol: allows communica ...
... • Common SQL API :allows client applications to be written that do not need to know vendor of DBMS they are accessing. • Common database protocol: enables DBMS from one vendor to communicate directly with DBMS from another vendor without need for a gateway. •Common network protocol: allows communica ...
APPENDIX BB Database Administration Document Template
... including scheduled jobs, tuning, replication, data retention, etc. Reminder: Click the show/hide icon on your tool bar to view examples of the required input. ...
... including scheduled jobs, tuning, replication, data retention, etc. Reminder: Click the show/hide icon on your tool bar to view examples of the required input. ...
Document
... If a transaction fails before reaching COMMIT, there is no need to make any recovery Redo of operations is needed, if a system crash occurs after COMMIT, but before all changes are recorded in the database on disk Then the operations have to be redone from the log file (that is already on disk) to t ...
... If a transaction fails before reaching COMMIT, there is no need to make any recovery Redo of operations is needed, if a system crash occurs after COMMIT, but before all changes are recorded in the database on disk Then the operations have to be redone from the log file (that is already on disk) to t ...
Chapter 09 Review Questions (Word)
... Changes in database structure may introduce errors that do not become apparent for long periods of time. Documentation provides a record of changes to assist the investigation into the cause of database errors. Further, documentation of database changes can be used to determine the structure of the ...
... Changes in database structure may introduce errors that do not become apparent for long periods of time. Documentation provides a record of changes to assist the investigation into the cause of database errors. Further, documentation of database changes can be used to determine the structure of the ...