in general, how should the boundaries of a transaction be defined? course hero

What rules apply to transaction boundaries when building a business process?

 · Transaction. Applies the transformation logic to all rows in a transaction. Choose Transaction when a row of data depends on all rows in the same transaction, but does not depend on rows in other transactions.-All Input. Applies the transformation logic on all incoming data. When you choose All Input, the PowerCenter drops incoming transaction boundaries. …

What is Rere transaction boundaries?

Transactions and Transaction Boundaries. A transaction (also known as a unit of work) is a sequence of one or more SQL operations grouped together as a single unit, usually within an application process. Such a unit is called atomic (from the Greek word meaning "not able to be cut," because it is indivisible-either all of its work is carried out, or none of its work is carried out.

Are resources accessed by a business process part of the transaction?

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What is the use of a a transaction?

Question 8 2 out of 2 points R.C. van Caenegem concluded that the Common law tradition as a result of historical accident, and as a result of this accident the first discernible state came into being in Europe with defined boundaries and a central government. Selected Answer: True

Why limit the amount of work performed within a single transaction?

Often, it is desirable to limit the amount of work performed within a single transaction so that locks acquired on behalf of the transaction are released in a timely manner. (When locks are held by one transaction, other transactions may be forced to wait for those locks to be freed before they can continue.) Additionally, if a large number of changes are made within a single transaction, it can take a considerable amount of time to back those changes out if the transaction is rolled back. However, using several small transactions to perform a single large task has its drawbacks as well. For one thing, the opportunity for data inconsistency to occur will be increased if business rules have to cross several transaction boundaries. Furthermore, each time a COMMIT statement is used to terminate a transaction, the DB2 Database Manager must perform extra work to commit the current transaction and start a new one. (Another drawback of having multiple commit points for a particular operation is that portions of an operation might be committed and therefore be visible to other applications before the operation is completed.)

What is transaction in SQL?

A transaction (also known as a unit of work) is a sequence of one or more SQL operations grouped together as a single unit, usually within an application process. Such a unit is called atomic (from the Greek word meaning "not able to be cut," because it is indivisible-either all of its work is carried out, or none of its work is carried out. A given transaction can perform any number of SQL operations-from a single operation to many hundreds or even thousands, depending on what is considered a "single step" within your business logic. (It is important to note that the longer a transaction is, the more database concurrency decreases and the more resource locks are acquired; this is usually considered a sign of a poorly written application.)

What is transaction level consistency?

Transaction-level consistency means that all rows impacted by any of the SQL statements in a transaction are protected from changes during the entire transaction. The disadvantage is that this is more restrictive setting, and may result in less throughput.

What is concurrent transaction?

When two transactions are being processed against a database at the same time, they are termed concurrent transactions. With concurrent transactions, two or more users access the database using a single CPU on the database server. The CPU executes some instructions from one, then executes some from the other, switching back-and-forth between them. The actions may appear simultaneous to the two users. For transactions to be processed simultaneously, two or more CPUs are required. With modern server computers, such processing is possible.

What is the difference between a high level and a low level of concurrency control?

High level of concurrency control is easier for the DBMS to administer but causes poor throughput. A low level of concurrency control is more difficult to administer for the DBMS, but provides better throughput.

What is an atomic transaction?

An atomic transaction is a series of actions to be taken on the database so that either all of them are performed successfully or none of them are performed at all, in which case the database remains unchanged. Such a transaction is sometimes called a Logical Unit of Work because it is performed as a unit.

What is configuration control?

Configuration Control is a process that allows users to register their needs for changes to procedures and policies, the entire database community can discuss the impacts of the changes, and a global decision can be made whether or not to implement proposed changes.

Do transactions have a growing or shrinking phase?

Transactions thus have a growing phase, in which the locks are obtained, and a shrinking phase, in which the locks are released.

What are the two types of accounting transactions based on objective?

There are two types of accounting transactions based on objective, namely business or non-business.

What are accounting transactions?

Accounting transactions refer to any business activity that results in a direct effect on the financial status and financial statements#N#Three Financial Statements The three financial statements are the income statement, the balance sheet, and the statement of cash flows. These three core statements are#N#of the business. Such transactions come in many forms, including: 1 Sales in cash and credit to customers 2 Receipt of cash from a customer by sending an invoice 3 Purchase of fixed assets#N#Tangible Assets Tangible assets are assets with a physical form and that hold value. Examples include property, plant, and equipment. Tangible assets are#N#and movable assets 4 Borrowing funds from a creditor 5 Paying off borrowed funds from a creditor 6 Payment of cash to a supplier from a sent invoice

What is double sided journal entry?

The double-sided journal entry comprises two equal and corresponding sides, known as a debit (left) and a credit (right). It will ensure that total debits will always equal total credits. CFI is the official provider of the global Financial Modeling & Valuation Analyst (FMVA)

What is financial accounting theory?

Financial Accounting Theory Financial Accounting Theory explains the why behind accounting - the reasons why transactions are reported in certain ways. This guide will

What are the types of accounting transactions according to institutional relationships?

The first one that we will discuss is the types of accounting transactions according to institutional relationships, namely external and internal transactions. 1. External transactions. These involve the trading of goods and services with money. Therefore, it can be said that any transaction that is entered into by two persons or two organizations.

What is a cash transaction?

They are the most common forms of transactions, which refer to those that are dealt with cash. For example, if a company purchases office supplies and pays for them with cash, a debit card, or a check, then that is a cash transaction.

Why are credit transactions deferred?

Credit transactions. They are deferred cash transactions because payment is promised and completed at a future date. Companies often extend credit terms for payment, such as 30 days, 60 days, or 90 days, depending on the product or service being sold or industry norms.