Question
Which of the following statements correctly describes
the ACID property "Durability" in database transactions?┬аSolution
Durability is an essential property of the ACID model in database transactions, which stands for Atomicity, Consistency, Isolation, and Durability. Durability guarantees that once a transaction has been committed, its changes are permanent, even in cases of system crashes or power failures. This property is typically ensured through logging and backup mechanisms that maintain committed data on stable storage, such as hard drives or SSDs, rather than volatile memory. Durability is crucial in systems where data integrity and reliability are vital, as it ensures that the database remains consistent and reliable after unexpected failures, reinforcing the resilience of the database system. Option A - This describes the Isolation property, which ensures that concurrent transactions do not interfere with each other. Option B - Reversibility is not a part of the Durability property; rather, it aligns more with error handling and rollback mechanisms related to Atomicity. Option C - Atomicity ensures that all operations within a transaction are treated as a single unit, completing fully or not at all, unrelated to Durability. Option E - While securing transactions is essential, it is more related to database security rather than the concept of Durability within ACID properties.
рд╕реВрдЪреА тАУ I рдХреЛ рд╕реВрдЪреА тАУ II рд╕реЗ рд╕реБрдореЗрд▓рд┐рдд рдХреАрдЬрд┐рдП рдФрд░ рд╕реВрдЪрд┐рдпреЛрдВ рдХреЗ рдиреАрдЪреЗ рджрд┐рдП я┐╜...
рддреБрд▓рд╕реАрджрд╛рд╕ рдХреА рд░рдЪрдирд╛ рдирд╣реАрдВ рд╣реИ -┬а
рдЖрдЪрд╛рд░реНрдп рд╢реБрдХреНрд▓ рдХрд┐рд╕ рдЖрдзрд╛рд░ рдкрд░ рдЖрджрд┐рдХрд╛рд▓реАрди рдЬреИрди рд╕рд╛рд╣рд┐рддреНрдп рдХреЛ рд╣рд┐рдВрджреА рдХреА ...
рдкрд░реНрдпрд╛рдпрд╡рд╛рдЪреА рд╢рдмреНрджреЛрдВ рдХреЗ рд╕рдВрджрд░реНрдн рдореЗрдВ рдЕрд╕рдВрдЧрдд рд╡рд┐рдХрд▓реНрдк рдЪреБрдирд┐рдП :
рдирд┐рдореНрдирд▓рд┐рдЦрд┐рдд рд╢рдмреНрджреЛрдВ рдореЗрдВ рд╕реЗ Amicus Curiae рдХрд╛ рд╕рд╣реА рдкрд░реНрдпрд╛рдп рд╣реИ ?
рдкрдпреЛрдзрд┐ рдХрд┐рд╕рдХрд╛ рд╕рдорд╛рдирд╛рд░реНрдереА рд╢рдмреНрдж рд╣реИ-
┬атАШрдмрд╛рдгрднрдЯреНрдЯ рдХреА рдЖрддреНрдордХрдерд╛' рдХрд┐рд╕ рд╡рд┐рдзрд╛ рдХреА рдкреБрд╕реНрддрдХ рд╣реИ :
рдирд┐рдореНрдирд╛рдВрдХрд┐рдд рд╡рд┐рдХрд▓реНрдкреЛрдВ┬а рдореЗрдВ рд╢реБрджреНрдз рд╡рд░реНрддрдиреА рд╡рд╛рд▓рд╛ рд╡рд┐рдХрд▓реНрдк рдХрд╛ ...
рдирд┐рдореНрдирд▓рд┐рдЦрд┐рдд рдореЗрдВ рд╕реЗ рд╢реБрджреНрдз рд╡рд░реНрддрдиреА рд╡рд╛рд▓рд╛ рд╢рдмреНрдж рд╣реИ
рдирд┐рдореНрдирд▓рд┐рдЦрд┐рдд рдореЗрдВ 'рддрддреНрд╕рдо' рд╢рдмреНрдж рд╣реИ-