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Find the names of all Albums that have more than 30 tracks. Result: (name: varchar(255))
What are audit trails? An audit trail is a log of all alters to the database along with information like which user performed the change and when the alter was performed.
object oriented database
Describe Physical Data independence ? Physical Data Independence - It is capacity to modify the internal schema without having to change conceptual schema. Therefore, the exter
It is mandatory that for every table in the LDB hierarchy there should exist one GET statement in the report. False. It is not essential.
What is Thread splitting A thread of control is a path by which a set of state diagrams on that a single object is active at a time. Objects are shared between threads
Conflicting Operations in Schedule: The three simple ways of interleaved instruction implement of transactions T1 and T2. Please note that in the following tables the first col
What is a hash index? A hash index organizes the search keys, with their associated pointers, into a hash file structure.
What is meant by Physical blocks? The input and output operations are completed in block units. The blocks residing on the disk are referred to as physical blocks.
what do you mean by primary key constraint?
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