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Mention the several levels in security measures. A) Database system B) Operating system C) Network D) Physical Human
Define According to the levels of abstraction, the schema at the intermediate level is called Ans: As per to the levels of abstraction, the schema at the intermediate level is
Association as a cache This association must be updated when any new element is added to it, but testing for overlap using association is more efficient. Figure:
1. Staff (staffID --> availabilityID) 2. Services (servicesID --> itemBasedID --> timedBasedID) 3. TimedBased (timedbasedID--> priceid) 4. Clients (clientId, serviceId-->
Explain about database system structure? Storage manager Authorization and integrity manager Transaction manager File manager Buffer manager Storage manager
Define seek time. The time for repositioning the arm is known as the seek time and it enhances with the distance that the arm is known as the seek time.
A student entity type has the following attributes,name..
What is vertical fragmentation? Vertical fragmentation divides the relation by decomposing the scheme R of relation r.
Cardinality shows the number of instances of an entity associated with another entity participating in a relationship. Depend on the cardinality binary relationship can be further
Find the names of all Albums that have more than 30 tracks. Result: (name: varchar(255))
how to get assignment in DBMS? Please let me know
Please let me know how to get assignment?
do i need to post assignment first?
Database management is quite interesting but i want subject more clear. Do i get help from your best expert?
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