Predeclaration PowerPoint PPT Presentations
All Time
Recommended
Chapter 16: Concurrency Control Lock-Based Protocols Timestamp-Based Protocols (not covered) Validation-Based Protocols (not covered0 Deadlock Handling
| PowerPoint PPT presentation | free to download
Chapter 16: Concurrency Control Lock-Based Protocols Timestamp-Based Protocols Validation-Based Protocols Multiple Granularity Multiversion Schemes
| PowerPoint PPT presentation | free to view
http://www.perl.org/ - Perl institute. http://www.perlmonks.com/ - Perl Monks. Books: ... grep Search through lists. print Output information. perldoc manpage ...
| PowerPoint PPT presentation | free to view
If TS(Ti) R-timestamp(Q), then the value of Q that Ti is producing was needed ... Otherwise, the write operation is executed, and W-timestamp(Q) is set to TS(Ti) ...
| PowerPoint PPT presentation | free to view
Concurrency Control Theory - Outline Application Examples Transaction Concept virtues and drawbacks Schedules, Serial schedules Equivalent Schedules, Correctness
| PowerPoint PPT presentation | free to download
A transaction is a unit of program execution that accesses and possibly updates ... Can lead to the undoing of a significant amount of work. 21. Recoverability (Cont. ...
| PowerPoint PPT presentation | free to download
( undoing the whole transaction) The Need for Concurrency Control ... The effect of the rollback in Transaction B is to undo the update of V at time T2. ...
| PowerPoint PPT presentation | free to view
Should not be necessary to rollback, i.e. undo write operations to DB, after commit point ... Reverse changes by undoing inconsistent operations ...
| PowerPoint PPT presentation | free to download
Concurrency Control in Distributed Databases Rucha Patel Outline Distributed Database Management system ( DDBMS ) Concurrency Control Models (CC) Concurrency Control ...
| PowerPoint PPT presentation | free to download
Title: What's new in UNIFACE 8 Author: berry kuijer Last modified by: Training Created Date: 1/1/1601 12:00:00 AM Document presentation format: On-screen Show
| PowerPoint PPT presentation | free to view
Little Quilt manipulates geometric objects with height, width and texture ... Some of the frequent operations are not provided directly by Little Quilt. ...
| PowerPoint PPT presentation | free to download
Microsoft 70-703 Questions and Answers from Certqueen contains 70 Q&As, which cover all the real exam topics.
| PowerPoint PPT presentation | free to download
Isolation Concepts Chapter 7 in Gray and Reuter Adapted from s by J. Gray & A. Reuter
| PowerPoint PPT presentation | free to download
Introduction What is Concurrent Process (CP)? Multiple users access databases and use computer systems simultaneously. Example: Airline reservation system.
| PowerPoint PPT presentation | free to download
Title: XML Author: David Matuszek Last modified by: David L. Matuszek Created Date: 5/10/2002 3:31:07 PM Document presentation format: On-screen Show
| PowerPoint PPT presentation | free to download
can convert a lock-X to a lock-S (downgrade) This protocol assures serializability. ... TS(T) W-timestamp(Q), then T is attempting to write an obsolete value of Q. ...
| PowerPoint PPT presentation | free to view
A lock is a mechanism to control concurrent access to a data item ... can convert a lock-X to a lock-S (downgrade) transaction may not obtain locks ...
| PowerPoint PPT presentation | free to view
Recoverable schedule if a transaction Tj reads a data items previously written ... Lower degrees of consistency useful for gathering approximate ...
| PowerPoint PPT presentation | free to view
Basic, Conservative, Strict, and ... Conservative 2PL is a deadlock-free protocol. ... Conservative 2PL must lock all its items before it starts so once the ...
| PowerPoint PPT presentation | free to view
5:00-6:00 PM, Tuesday, Dec. 2nd, EE 119. Pizza & drinks served. 3. Transactions. A transaction is: ... a sequence of steps to accomplish a single task ...
| PowerPoint PPT presentation | free to view
Little Quilt manipulates geometric objects with height, width and texture ... Some of the frequent operations are not provided directly by Little Quilt. ...
| PowerPoint PPT presentation | free to view
FC(FNO, DATE, CNAME,SPECIAL) Distributed DBMS. Page 10-12. 5 ... Write(flight(date).special, null); Commit; output('reservation completed') end. end. ...
| PowerPoint PPT presentation | free to download
Facilitates very quick program development -- many problems can be solved very ... printargs('frog', 'and', 'toad'); # Prints 'frog and toad' sub printfirsttwo ...
| PowerPoint PPT presentation | free to view
Introduction What is Concurrent Process (CP)? Multiple users access databases and use computer systems simultaneously. Example: Airline reservation system.
| PowerPoint PPT presentation | free to download
Begin Transaction. End Transaction statements (see later text for Oracle info) 6. ACID property ... data will need at beginning. locking tables in a specific ...
| PowerPoint PPT presentation | free to view
... T1 and T2 in interleafed fashion. Schedule S. Two-Phase Locking ... 1) Check the directory whether in the cache. 2) If none, copy from disk pages to the cache ...
| PowerPoint PPT presentation | free to download
string background = 'images/gears.jpg'; print(quote to ENDOFHTML HTML ... String, file, html fetch libraries. Reference counting/auto freeing of objects ...
| PowerPoint PPT presentation | free to download
{ Abor t( Si ) ;/* acces s denied due to secur ity ... corresponding schedulers as a single atomic action in totally ordered fashion. ...
| PowerPoint PPT presentation | free to view
Similarly, an XML element might be tagged as name, gender, birth date, salary, price, ... Tagged elements may be nested to any depth to provide structured data, ...
| PowerPoint PPT presentation | free to view
Society of Automotive Engineers (SAE) Avionics Systems Division (ASD) Embedded Systems (AS2) ... Missile Re-engineering demonstration (AMCOM SED) ...
| PowerPoint PPT presentation | free to download
Compiler generator Coco/R. Tasks: ... the concepts of scanning, parsing, name management in nested scopes, and ... The occurrence of an invalid character (e.g. ...
| PowerPoint PPT presentation | free to download
Correction to the exercise printouts: there will be no spaces in the binary files! ... r - regular. Question 4.1: matop. New requirements for compressed arrays: ...
| PowerPoint PPT presentation | free to view
Construct a directed graph, precedence graph, G = (V, E) ... consistent with precedence order of graph) ... (precedence order) no cycles S is serializable. 42 ...
| PowerPoint PPT presentation | free to view
If not, print an error message and exit. For example, FILE *input = fopen ... for reading or writing a large volume of data such as a photographic image file. ...
| PowerPoint PPT presentation | free to view
Insert and Delete Operations. Concurrency in Index Structures Silberschatz, ... But still relies on the programmer to insert the various locking instructions. ...
| PowerPoint PPT presentation | free to view
To check unlimited growth of versions, a garbage collection is run when some ... This phase for Ti checks that, for each transaction Tj that is either committed ...
| PowerPoint PPT presentation | free to view
Byounghyun Yoo: San Diego modeling via many sources, browsers ... There is a strong preference for only including royalty Free (RF) technology. ...
| PowerPoint PPT presentation | free to view
