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Why recovery of interactive transaction is more difficult to deal with than is recovery of batch transactions?
Recovery of interactive transactions is more challenging than that of batch transactions because interactive transactions are often dependent on user input and can be in a mid-state when a failure occurs. This complexity requires maintaining a consistent state across multiple concurrent transactions, which can lead to complications such as lost updates or deadlocks. Additionally, interactive transactions may need to be rolled back to a specific point, complicating the recovery process since the system must manage real-time user interactions alongside data integrity. In contrast, batch transactions are typically processed in isolation and can be more easily rolled back or re-executed without user dependency.
What else can I help you with?
What is the maximum amount that a licensee can receive from the Transaction Recovery Fund due to the improper activities of a real estate broker involved in multiple transactions?
100000
What is recovery model?
SQL Server backup and restore operations occur within the context of the recovery model of the database. Recovery models are designed to control transaction log maintenance. A recovery model is a database property that controls how transactions are logged, whether the transaction log requires (and allows) backing up, and what kinds of restore operations are available. Three recovery models exist: simple, full, and bulk-logged. Typically, a database uses the full recovery model or simple recovery model. A database can be switched to another recovery model at any time.
What recovery actions is required for ensuring the durability property of a database?
Durability is one of the ACID properties of computer science, which guarantees the reliable processing of database transactions (single logical operations). Specifically, durability ensures that committed transactions will persist even if the system crashes. This can be obtained via a transaction log or flushing the transaction's log records to non-volatile memory before returning an acknowledgement for the transaction.
What is the purpose of a transaction log?
A transaction log is a critical component of database management systems that records all changes made to the database, including insertions, updates, and deletions. Its primary purpose is to ensure data integrity and enable recovery in case of system failures, allowing for the restoration of the database to a consistent state. Additionally, transaction logs support features like rollback and redo operations, which help maintain the accuracy and reliability of transactions.
What are the different types of files that are associated with tps?
TPS (Transaction Processing System) typically involves several types of files, including transaction files, master files, and audit files. Transaction files store individual transactions as they occur, master files maintain the current state of data, and audit files track changes for security and compliance purposes. Additionally, backup files may be used for data recovery and integrity. Each of these file types plays a crucial role in ensuring accurate and efficient transaction processing.
What is the difference between olap and oltp?
Hi, The difference can be highlighted by defining the two entities separately, OLTP: Online Transaction Processing is a system normally used in the regular routine of database or User end Transactions (These Transactions are short Transactions). In OLTP, the data is fully normalized in order to avoid redundancy,Duplication of data etc, for achieving normalization various Joins are used that connects the tables. (without these joins OLTP cannot be fully Normalized). Now move on, OLAP: Online Analytical Processing is a system helpful for analysis purposes, it is used in Business Intelligence for analysis reporting, unlike OLTP it doesn't have too many joins in it because in OLAP it is not required to normalize the data, the basic purpose is to make Facts and Dimensions. <<Specifically for reporting purposes the data retrieval should be faster (The joins make the data processing slow) so the basic need of designing OLAP is to make the reporting system faster.>>
What are the release dates for Recovery Is a Difficult and Rewarding Process - 2012?
Recovery Is a Difficult and Rewarding Process - 2012 was released on: USA: 26 August 2012 (internet)
Why is data recovery more difficult in database enviorn?
Data recovery in database environments is more difficult due to the complexity of structured data and the interdependencies between tables, which can complicate the restoration process. Additionally, databases often employ transactions and concurrency controls, meaning that incomplete or inconsistent data states can arise during recovery. The need to maintain data integrity and the potential for data corruption further complicate recovery efforts, making specialized tools and techniques necessary. Finally, large databases may have extensive logs and backups, requiring careful management to ensure a successful recovery without data loss.
What are the salient features of deferred database modification and immediate database modification schemes for recovery?
In deffered database the transaction is committed after the transaction is completed i.e(the transaction has completed its partially committed state) where as for immediate database the transaction is commited when tha transaction is in the active state. keta shah Oracle DBA track trainer ITS knp_shah@yahoo.co.in
When does a DBA use backwards recovery?
-Undo problem transactions -Apply before images from log to undo their updates
What is crash recovery in computer?
Crash recovery in computer systems refers to the processes and techniques used to restore a system to a consistent state following a failure, such as a power outage or software crash. This involves identifying and rectifying any incomplete transactions or corrupted data, often using logs or backup copies to recover lost information. The goal is to ensure data integrity and minimize downtime, allowing the system to resume normal operations as quickly as possible. Methods such as checkpointing and transaction logs are commonly employed in crash recovery strategies.
Debit Card Scam Recovery?
Debit card scam recovery is the process of taking action to regain any lost funds and prevent further unauthorized transactions on your debit card. The first step in debit card scam recovery is to contact your bank or card issuer immediately. They will be able to freeze your account and issue a new card to prevent further unauthorized transactions.
