Trumping Oracle Exadata
... companies recently evaluated Oracle’s Exadata against two Fusion Powered servers. Sometimes two can be bigger than Exa. ...
... companies recently evaluated Oracle’s Exadata against two Fusion Powered servers. Sometimes two can be bigger than Exa. ...
Document
... The precedence graph test for conflict serializability must be modified to apply to a test for view serializability. The problem of checking if a schedule is view serializable falls in the class of NP-complete problems. Thus existence of an efficient algorithm is unlikely. However practical algori ...
... The precedence graph test for conflict serializability must be modified to apply to a test for view serializability. The problem of checking if a schedule is view serializable falls in the class of NP-complete problems. Thus existence of an efficient algorithm is unlikely. However practical algori ...
RDBMS Competitive Analysis
... Compatible with a broad range of tools, frameworks and application integrations. Support for advanced SQL features such as Views and Stored Procedures. Large community of skilled software engineers and database administrators. Avoids proprietary API lock-in. ...
... Compatible with a broad range of tools, frameworks and application integrations. Support for advanced SQL features such as Views and Stored Procedures. Large community of skilled software engineers and database administrators. Avoids proprietary API lock-in. ...
PPTX
... To avoid such a problem, we need to consider the sequence of statements of a user transaction as a unit. Statements from two different user transactions must be ordered in a way that is equivalent to both transactions being performed serially in either order ...
... To avoid such a problem, we need to consider the sequence of statements of a user transaction as a unit. Statements from two different user transactions must be ordered in a way that is equivalent to both transactions being performed serially in either order ...
Overview of Databases and Transaction Processing
... failure for this course and to a disciplinary action. Allowing another student to copy one's work will be treated as an act of academic dishonesty, leading to the same penalty as copying. ...
... failure for this course and to a disciplinary action. Allowing another student to copy one's work will be treated as an act of academic dishonesty, leading to the same penalty as copying. ...
Chapter 7: Relational Database Design
... access to data), two-phase locking is needed for conflict serializability in the following sense: Given a transaction Ti that does not follow two-phase locking, we can find a transaction Tj that uses two-phase locking, and a schedule for Ti and Tj that is not conflict serializable. ...
... access to data), two-phase locking is needed for conflict serializability in the following sense: Given a transaction Ti that does not follow two-phase locking, we can find a transaction Tj that uses two-phase locking, and a schedule for Ti and Tj that is not conflict serializable. ...
Chapter 17: Parallel Databases
... – For example, index construction on terabyte databases can take hours or days even on a parallel system. • Need to allow other processing (insertions/deletions/updates) to be performed on relation even as index is being constructed. ...
... – For example, index construction on terabyte databases can take hours or days even on a parallel system. • Need to allow other processing (insertions/deletions/updates) to be performed on relation even as index is being constructed. ...
Transactions Seminar 2
... the first reading of shared data occurs in the first transaction. It can be done by means of a simple lock before the reading. Here this algorithm is possible, because we have just one reading and one writing immediately after it in both transactions, so the wait state will cause effective serial ex ...
... the first reading of shared data occurs in the first transaction. It can be done by means of a simple lock before the reading. Here this algorithm is possible, because we have just one reading and one writing immediately after it in both transactions, so the wait state will cause effective serial ex ...
ppt
... 1. For each data item Q, if transaction Ti reads the initial value of Q in schedule S, then transaction Ti must, in schedule S´, also read the initial value of Q. 2. For each data item Q if transaction Ti executes read(Q) in schedule S, and that value was produced by transaction Tj (if any), then tr ...
... 1. For each data item Q, if transaction Ti reads the initial value of Q in schedule S, then transaction Ti must, in schedule S´, also read the initial value of Q. 2. For each data item Q if transaction Ti executes read(Q) in schedule S, and that value was produced by transaction Tj (if any), then tr ...
Chapter 7: Relational Database Design
... 1. For each data item Q, if transaction Ti reads the initial value of Q in schedule S, then transaction Ti must, in schedule S´, also read the initial value of Q. 2. For each data item Q if transaction Ti executes read(Q) in schedule S, and that value was produced by transaction Tj (if any), then tr ...
... 1. For each data item Q, if transaction Ti reads the initial value of Q in schedule S, then transaction Ti must, in schedule S´, also read the initial value of Q. 2. For each data item Q if transaction Ti executes read(Q) in schedule S, and that value was produced by transaction Tj (if any), then tr ...
Transaction Processing and Management in Distributed Database
... the protocol’s participants use logging of the protocol’s states. Log records, which are typically slow to generate but survive failures, are used by the protocol’s recovery procedures. Many protocol variants exist that primarily differ in logging strategies and recovery mechanisms. Though usually i ...
... the protocol’s participants use logging of the protocol’s states. Log records, which are typically slow to generate but survive failures, are used by the protocol’s recovery procedures. Many protocol variants exist that primarily differ in logging strategies and recovery mechanisms. Though usually i ...
Document
... Database recovery is the process of restoring the database to a correct state following a failure– The failure may be the result of a system crash, media failure, software error, or accidental or malicious destruction of data. Whatever the cause of failure, the DBMS must be able to restore the datab ...
... Database recovery is the process of restoring the database to a correct state following a failure– The failure may be the result of a system crash, media failure, software error, or accidental or malicious destruction of data. Whatever the cause of failure, the DBMS must be able to restore the datab ...
Database Replication techniques - Department of Computer Science
... – rule of thumb : less messages exchanged per transaction, the better. – Protocols based on linear interaction in combination with update everywhere are largely infeasible in databases. – In the primary copy case, consequences of how many messages are exchanged are not negligible. – sending all upda ...
... – rule of thumb : less messages exchanged per transaction, the better. – Protocols based on linear interaction in combination with update everywhere are largely infeasible in databases. – In the primary copy case, consequences of how many messages are exchanged are not negligible. – sending all upda ...
(4) RDBMS: Relational Data Base Management System
... 4. Creation of forms for the case study assigned. 5. Creation of reports based on different queries 6. Creation password and security features of applications 7. Usage of locking table locking, facilities in applications NOTE: (i) Use Case Studies such as Library Information System, Pay roll system, ...
... 4. Creation of forms for the case study assigned. 5. Creation of reports based on different queries 6. Creation password and security features of applications 7. Usage of locking table locking, facilities in applications NOTE: (i) Use Case Studies such as Library Information System, Pay roll system, ...
![(Microsoft PowerPoint - lecture11 [Kompatibilitetsl\344ge])](http://s1.studyres.com/store/data/007757660_1-9b130d2379aa95c984836fce769259ed-300x300.png)
(Microsoft PowerPoint - lecture11 [Kompatibilitetsl\344ge])
... • If a transaction is run with isolation level SERIALIZABLE, then no other transaction may interfere with it in any way. – Examples: If two room booking transactions are run serializable, then a booking for a room that was listed as free will always succeed, and transactions must wait for other tran ...
... • If a transaction is run with isolation level SERIALIZABLE, then no other transaction may interfere with it in any way. – Examples: If two room booking transactions are run serializable, then a booking for a room that was listed as free will always succeed, and transactions must wait for other tran ...
oNTRAK - Turner Scale, Inc.
... Charges – Charge rates can be set for each customer, hauler, job and product. Choices include Taxable and Non-Taxable Weight Based, Price Based, Fixed and TAX. Transaction – Transactions can be categorized by either shipping or receiving. A default parameter is available for normal operation in ship ...
... Charges – Charge rates can be set for each customer, hauler, job and product. Choices include Taxable and Non-Taxable Weight Based, Price Based, Fixed and TAX. Transaction – Transactions can be categorized by either shipping or receiving. A default parameter is available for normal operation in ship ...
Understanding Transactions
... No direct support in Firebird. Firebird has isolation level called Snapshot (or Concurrency) that is similar to Repeatable Read, but: ...
... No direct support in Firebird. Firebird has isolation level called Snapshot (or Concurrency) that is similar to Repeatable Read, but: ...
DATABASE ADMINISTRATOR Driscoll Children`s Hospital located
... Driscoll Children’s Hospital located in Corpus Christi, Texas is currently seeking an experience Database Administrator. Under direction, facilitates the efficient operation, design, use and maintenance of the various database subsystems utilized throughout Driscoll Children’s Health Plan. Principle ...
... Driscoll Children’s Hospital located in Corpus Christi, Texas is currently seeking an experience Database Administrator. Under direction, facilitates the efficient operation, design, use and maintenance of the various database subsystems utilized throughout Driscoll Children’s Health Plan. Principle ...
What Is a Transaction?
... there is some scheduling order in which every processes can run to completion even if all of them suddenly request their maximum number of resources immediately. ...
... there is some scheduling order in which every processes can run to completion even if all of them suddenly request their maximum number of resources immediately. ...
Transaction Processing Systems
... including: – DSSs, decision support systems – MISs, management information systems ...
... including: – DSSs, decision support systems – MISs, management information systems ...
Systems Analysis & Design with Databases
... Generates database requests and transmits them via network to server Receives results from server and formats them as required by application ...
... Generates database requests and transmits them via network to server Receives results from server and formats them as required by application ...
