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For systems without a commit/rollback mechanism available, one can undo a failed transaction with a compensating transaction, which will bring the system back to its initial state. Typically, this is only a workaround which has to be implemented manually and cannot guarantee that the system always ends in a consistent state.
If the coordinator fails permanently, some participants will never resolve their transactions: After a participant has sent an agreement message as a response to the commit-request message from the coordinator, it will block until a commit or rollback is received. A two-phase commit protocol cannot dependably recover from a failure of both the ...
Harvey Jackins' own story of the origins of Re-evaluation Counseling leaves out any mention of Dianetics. As he told it, he began to develop Re-evaluation Co-Counseling after observing a troubled friend make changes in his thinking process through being patiently listened to while he cried.
SQL refers to Structured Query Language, a kind of language used to access, update and manipulate database. In SQL, ROLLBACK is a command that causes all data changes since the last START TRANSACTION or BEGIN to be discarded by the relational database management systems (RDBMS), so that the state of the data is "rolled back" to the way it was before those changes were made.
Acceptance and commitment therapy (ACT, typically pronounced as the word "act") is a form of psychotherapy, as well as a branch of clinical behavior analysis. [1] It is an empirically-based psychological intervention that uses acceptance and mindfulness strategies [2] along with commitment and behavior-change strategies to increase psychological flexibility.
The caretaker is going to do something to the originator, but wants to be able to undo the change. The caretaker first asks the originator for a memento object. Then it does whatever operation (or sequence of operations) it was going to do. To roll back to the state before the operations, it returns the memento object to the originator.
Escalation of commitment is a human behavior pattern in which an individual or group facing increasingly negative outcomes from a decision, action, or investment nevertheless continue the behavior instead of altering course.
Rational choice modeling has a long history in criminology.This method was designed by Cornish and Clarke to assist in thinking about situational crime prevention. [1] In this context, the belief that crime generally reflects rational decision-making by potential criminals is sometimes called the rational choice theory of crime.