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Concerning DBMS support for concurrency control and recovery is done by: AO Every object that is perused or composed by a transaction is first sits accessibility to different transactions and consequently affects peB.O For Proficient log support, the DBMS must have the option to spesupport for this activity isn't generally good.C. O Periodic checkpointing can decrease the time expected to recuperatetoo often slows down normal execution.D. All of the theseA formal query language, in view of an assortment of operators for controlling​

Answer» ONG>Answer:

There is no HIERARCHICAL ORDER for ______ OPERATORS. /



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