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What are called multilevel indices?
Indices with two or more levels are known as multilevel indices.
WHY SHOULD NULL IN A RELATION BE AVOID AS possible?
What are the disadvantages of file processing system? The drawbacks of file processing systems are a) Data redundancy and inconsistency b) Complexity in accessing data
How to create values of structured type? Constructor functions are used to make values of structured types. A function with the similar name as a structured type is a construct
Explain the difference between optimistic locking and pessimistic locking. Optimistic locking supposes no transaction conflict will occur and deals with the consequences if it
Domain Constraint It shows that each attribute in a relation has to contain an atomic value only from the corresponding domains. The data types associated with commercial RDBMS
What are segments in oracle? Segments - Each table has single field of disk space, known as segment, set aside for it in the tablespace. Segments consist of contiguous sections
Can a domain, assigned to a data element be changed? Yes. We can do so by just overwriting the entry in the field domain.
What is recovery management component? Ensuring durability is the responsibility of a software component of the base system known as the recovery management component.
milestone assignment
Create a table according to given data: AmbulanceDriver(Driver_Number#, Name, Address, Birth_Date) AmbulanceDriverTeam(Team_Number#, Driver_Number#, Join_Date, Lea
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