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Topic: Transaction processing

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	Transaction Processing
		We use read_1 [x,v] to refer to a read operation executed by transaction 1, where the read value is v; write_1[x,v] refers to a write operation executed by transaction 1 with value v.
		One of the main objectives of a transaction processing system is controlling and coordinating the execution of a set of concurrent transactions accessing shared data and resources.
		Note that transactions that were active when the failure occurs are considered aborted since their internal state is lost due to the failure.
	www.cse.scu.edu /~jholliday/transproc.html (2279 words)

	Object Oriented Transaction Processing in the KeyKOS Microkernel
		This action causes all transactions to wait until the checkpoint completes, and is undesirable because it introduces a noticeable delay in transaction processing.
		Systems that use Transaction ID's must carry that ID in messages to entities that are involved in the transaction, such as databases and the transaction processing monitor.
		Often the Transaction ID is passed implicitly using an operating system level mechanism that is specific to transaction processing.
	www.cis.upenn.edu /~KeyKOS/KeyTXF/KeyTXF.html (4920 words)

	Introduction to Transaction Control
		An important message of this article is that transactions are not simply the domain of databases, instead they are issues that are potentially pertinent to all of your architectural tiers.
		When the transaction starts the entities are in a consistent state, and when the transaction ends the entities are once again in a consistent, albeit different, state.
		A nested transaction is a transaction where some of its steps are other transactions, referred to as subtransactions.
	www.agiledata.org /essays/transactionControl.html (1936 words)

	c-tree Database Server Æ Transaction Processing
		Transaction processing is implemented on three levels: Low, Intermediate, and High.
		However, selection of any process option that does not pose a threat to data integrity may be deferred until file open time.
		Without atomic transactions, files 1, 2, 4 and 5 would have been updated, but file 3 would not, causing the five files to be out of sync.
	www.faircom.com /products/ctreeserver/transaction_processing.shtml (529 words)

	New paradigms for transaction processing
		Whereas in the past, the operator of a transaction processing system acted in a programmed way as the interface between the world and the computer system, BPR has required such operators to make more independent decisions based on sources of data wider than that available from the traditional one function transaction processing system.
		A transaction processing system which allows its operator to choose what task is done next as often as possible is thought better than one which restricts future actions based on past actions.
		To add a new transaction type, a programmer develops the code, passes the code to the transaction processing monitor administrator who then installs the code and enables certain terminals to use the new transaction.
	www.csse.monash.edu.au /~cavram/papers/tp/tr94-02h.html (4449 words)

	Enterprise Java Community: Nuts and Bolts of Transaction Processing
		Since the order capture and order process transaction is distributed across two components, the transaction context should be global and be propagated from the first component to the second along with the transfer of control.
		Transaction context is an association between the transactional operations on the resources, and the components invoking the operations.
		Transactional Object: A CORBA object that encapsulates or refers to persistent data, and whose behavior depends on whether or not its operations are invoked during a transaction.
	www.theserverside.com /articles/article.tss?l=Nuts-and-Bolts-of-Transaction-Processing (5029 words)

	DBMS - January 1998 - Transaction Processing Today
		This is referred to as a nested transaction, and it enables users to explore data without interrupting a transaction in process.
		Unfortunately, the wife's transaction would add the amount of her check (say it's $150) to what she believes is still the current balance (the original $2,000) and would write out the new balance of $2,150.
		Each SQL statement that is part of the transaction is executed by the same thread, and when the transaction completes (with a commit or rollback), the thread is freed up and returned to the pool to await the next incoming transaction, regardless of which user initiates the transaction.
	www.dbmsmag.com /9801d13.html (4175 words)

	Business Transaction Processing System (Site not responding. Last check: 2007-09-17)
		Business transactions may have hierarchical relationships (such as the relationships between the business transaction represented by a check to the business transaction represented by a bank account).
		The traditional transactions only cover a small part of the life of these transactions and multiple traditional transactions are often required in order to complete a single business transaction.
		Often, the traditional transactions execute in different environments and it becomes difficult to connect all of the pieces back to the original customer need that started the whole process.
	st-www.cs.uiuc.edu /users/johnson/business-transactions/sreich.html (1079 words)

	Transaction Processing
		A transaction is a grouping of work items that must all be completed in order for the transaction to be complete.
		In almost all cases, enterprises are forced to funnel transactions through a transaction processing server, which ultimately reduces throughput.
		The transaction processing engine is very high performance, because it is built on top of the native database transaction processing infrastructure.
	www.objectriver.net /transactionprocessing.htm (473 words)

	Internet Credit Card Transaction Processing
		This is the process of being able to actually take credit cards and have transactions moved into your checking account.
		Transaction processors are separate from the banks that provide a merchant account, although some providers provide a single transaction statement seemingly providing a single service.
		The API works well and transaction times are between 5-15 seconds, but be aware that you're dealing with two companies here: CardService and ClearCommerce who are the API providers and hosting company for the actual Internet clearing service.
	www.west-wind.com /webconnection/MerchantProviders.asp (1222 words)

	Transaction Processing Systems
		Because of this, Transaction Processing Systems are mostly unknown to the world of personal computers.
		Transaction Systems handle errors in a safe and consistent manner, but there are certain errors that can not be avoided (e.g.
		It is a Programming Language that internally handles all Transaction Processing activities in a manner that is invisible to the programmer.
	www.radpage.com /heitml2.1/features/transact.hei (606 words)

	Soltrus - Payflow - Transaction Processing FAQs
		Transaction processing involves the round trip transfer of financial transaction data (for example, consumer credit card information), from a merchant's web site to a processing network (such as VeriSign), and thereafter completes the transfer of funds to the merchant.
		To determine whether a transaction was processed during a time-out error, you can access the VeriSign Manager web site and check the transaction report.
		Delayed capture transactions allow you to authorize a transaction, and specify a wait time until you ship the product to settle the transaction and capture the funds.
	www.soltrus.com /english/solutions/payflow_transaction_faq.html (615 words)

	Databases move to deliver transaction processing
		That lack of awareness in 1992 began to haunt the transaction processing vendors in 1993.
		In particular it was the year when the inaction of transaction processing vendors (as so far as communicating their existence) allowed the database vendors to catch up.
		On the contrary, he makes the point that all of transaction processing, batch processing, messaging and queuing and database are needed.
	www.middlewarespectra.com /abstracts/2_94_01.htm (1067 words)

	Amazon.com: Transaction Processing: Concepts and Techniques (The Morgan Kaufmann Series in Data Management Systems): ... (Site not responding. Last check: 2007-09-17)
		Transaction Processing completely covers the problems faced by OLTP systems and discusses fault tolerance and recovery--the ability of a system to withstand failures of various kinds without dropping the ball.
		Transactions and Database Dynamics: 8th International Workshop on Foundations of Models and Languages for Data and Objects, Dagstuhl Castle, Germany, September...
		This is unique for a book on transaction processing in that most books on the subject confine their scope to software and databases.
	www.amazon.com /Transaction-Processing-Concepts-Techniques-Management/dp/1558601902 (1745 words)

	Transaction Processing (Site not responding. Last check: 2007-09-17)
		You have been called upon to write a program which performs one of the initial steps in posting transactions to a general ledger.
		A transaction consists of between two and ten entries with identical sequence numbers.
		The last entry in the report is one you will create to make the transaction balance, using the special account number 999 (the suspense account).
	acm.uva.es /p/v1/187.html (380 words)

	Merchant Transaction Processing Services
		Transaction processing works with your merchant account to provide real-time transaction processing on your website.
		You can also process credits and voids as well as view a history of transactions by date.
		You can also set up transactions to process automatically on a recurring basis for transactions such as quarterly subscription fees or monthly service charges.
	www.planetlink.com /merchants.html (181 words)

	Amazon.com: Principles of Transaction Processing (The Morgan Kaufmann Series in Data Management Systems): Books: Philip ... (Site not responding. Last check: 2007-09-17)
		While transaction processing has been a part of mainframe system design for decades, it has recently become relevant for commerce and everyday database access on the Web.
		Transaction processing is a daunting topic, and this is one of the few books that provides the basics in a clear, understandable manner without overwhelming the reader.
		Most of the book is focused solely on transaction processing, but it touches on queuing as well, which makes it the ideal first book for anyone who is seeking details that extend beyond pure TP.
	www.amazon.com /Principles-Transaction-Processing-Kaufmann-Management/dp/1558604154 (2480 words)

	Transaction Processing Industry - Processing System - TAWPi
		Due to advances in technology, and changes in payment processing methodologies, traditional remittance processing systems have matured to include greater involvement in transaction processing workflows.
		In addition to accepting and crediting payments to an account, today's transaction processing industry, systems are much more complex.
		Seemingly disparate systems such as imaging and data capture, remittance processing, payment lockbox, and customer service can be linked in an integrated transaction processing system.
	www.tawpi.org /transaction-processing-system-industry.html (315 words)

	High-volume Transaction Processing in J2EE (Site not responding. Last check: 2007-09-17)
		Real-time asynchronous processing is applicable when the processing must be performed immediately or when the results must eventually be communicated back to an on-line user.
		Event/timer processes may contend with your on-line processes for resources and for access to the same data, leading to locking problems.
		To partition by the number of transactions, divide the total number of records by the number of records to be processed in one unit of work.
	www.devx.com /Java/Article/20791/1954?pf=true (2946 words)

	Transaction Processing Concepts and Techniques
		The role of a transaction processing system in application design, implementation, and operation is covered in the abstract.
		Susan also worked in the CICS transaction processing development group in the area of recovery, long running transactions, interfaces to database management systems, and distributed applications.
		The key message is: Transaction processing is a prerequisite for mastering the complexity of distributed, heterogeneous systems.
	research.microsoft.com /~gray/WICS_99_TP (1625 words)

	Financial Transaction Processing
		State Agencies considering on-line transactions should realize there are separate processing costs associated with both the KMS contract as well as the state portal contract.
		If the refund is requested on the same day as the purchase, prior to nightly settlement process, the user may reverse the charge and halt the purchase process.
		The six-week processing time is dictated by KMS and cannot be expedited by your Fiscal Office or the Division of Accounts.
	www.state.tn.us /guidelines/tf.html (1855 words)

	Transaction Processing
		The main goal of a transaction processing system is to maintain the correspondence between the database and the real-world situation it is modeling as events occur in the real world.
		It is assumed that if a transaction starts in a state which satisfies all integrity constraints, then when the transaction completes the database must be left in a state which satisfies all integrity constraints.
		The effects of committed transactions are permanently recorded in the database.
	cs.wwc.edu /~aabyan/415/IM7.html (614 words)

	What is transaction processing? - A Word Definition From the Webopedia Computer Dictionary
		A type of computer processing in which the computer responds immediately to user requests.
		The opposite of transaction processing is batch processing, in which a batch of requests is stored and then executed all at one time.
		Transaction processing requires interaction with a user, whereas batch processing can take place without a user being present.
	www.webopedia.com /TERM/T/transaction_processing.html (302 words)

	ADP (Site not responding. Last check: 2007-09-17)
		Global Processing Solution is ADP’s comprehensive system for handling transactions in any instrument, in any market, at any time.
		Its advanced real-time processes automate the transaction lifecycle for e-commerce and institutional STP operations, from order capture and execution through confirmation, settlement, and accounting.
		is a real-time, multi-currency system for the trade processing, clearing, settlement and accounting of a wide range of instruments including international debt, equities, repo and treasury.
	bsg.adp.com /transaction.asp (483 words)

	Transaction Processing (Site not responding. Last check: 2007-09-17)
		A transaction has a start and it is finished by either a commit-command to activate all its changes made to the system or by a rollback-command to roll back the system to the previous state
		That means: A transaction either processes all of its changes or none of them.
		I've always thought of deadlock resolution as a "de-facto" requirement of any general transaction system too, but I've heard rumours that a lot of popular database systems don't do this.
	c2.com /cgi/wiki?TransactionProcessing (279 words)

	15 Seconds : Transaction Processing in ADO.NET 2.0
		If your implementation context was a single database, you could instantiate an instance of one of the IDBTransaction objects, attach it to your connection, process what you wanted, and either commit or rollback depending on the results.
		A similar method would entail rolling your transaction processing into a stored procedure and simply invoking the procedure.
		All that is required to commit or rollback the transaction is specifying True or False for consistent.
	www.15seconds.com /issue/040914.htm (1995 words)

	Transaction Processing Monitors
		If one of the transactions would cause balance requirements to be violated, the TP monitor therefore needs to reject one of the transactions.
		I would also like to implement the Java transaction service, which is fairly straight mapping of the CORBA transaction service.
		They tend to suffer somewhat on the "consistency" side of things; several messages may be required to complete an overall transaction, and those messages will each tend to reflect the latest system state rather than consistently looking back to the state of the system at the time the transaction began to take place.
	cbbrowne.com /info/tpmonitor.html (1007 words)

	Transaction Processing
		Transactions ensure that data-oriented resources are not permanently updated unless all operations within the transactional unit complete successfully.
		Transaction processing systems consist of computer hardware and software hosting a transaction-oriented application that performs the routine transactions necessary to conduct business.
		This section provides both general information on transaction processing, and specific information on how to write transactional applications and resource managers using the Microsoft.NET Framework.
	msdn2.microsoft.com /en-us/library/w97s6fw4.aspx (318 words)

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