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Draw the precedence graph of the following schedule and determine whether the schedule is serializable. (Note that all instructions, except lock and unlock, are omitted. We assume
What is vertical fragmentation? Vertical fragmentation divides the relation by decomposing the scheme R of relation r.
I need help with data warehousing and business intelligence course project about designing a data warehouse for a jewelry company that does not have one
find a name whose address is erode from student table
Give Concurrent sub states diagram for the classroom and exam held. In Figure, simultaneous substrates have been taken. After passing Minor 1 test you could give Minor 2 test. T
Scenario 1: Power goes out after the first instruction. What happens?
Locks: Serialisabilty is just a test whether a given interleaved schedule is ok or has a concurrency related trouble. Though, it does not make sure that the interleaved concurrent
A field-groups statement or an insert statement reverses storage space and transfers values. False.
Ask q“A database will be made to store information about patients in a hospital. On arrival, each patient’s personal details (name, address, and telephone number) are recorded wher
Define hot swapping? Hot swapping permits the removal of faulty disks and changes it by new ones without turning power off. Hot swapping decreases the mean time to repair.
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