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Write short notes on relational constraints?
Relational Constraints are:1. NOT NULL2. Unique3. Primary key4. Foreign key5. Table check
what characterizes the levels in RAID technology
wrie a report on whether a BSc n information systems develops the skills required by employers in Database administration
The Incident table, with an auto-incrementing incident number, etc, looks like: incident_num reporter date time incide
Mixed fragmentation: Sometimes, horizontal fragmentation or vertical fragmentation of a database schema by itself is insufficient to sufficiently distribute the data for some appli
What are called index-sequential files? The files that are ordered sequentially with a primary index on the search key are known as index-sequential files
Explain TPS concurreny executions stating their advantages in online business advancement
Your OS has a set of queues, each of which is protected by a lock. To enqueue or dequeue an item, a thread must hold the lock associated to the queue. You need to implement an a
What are two special events? The two special events are as "entry" and "exit". Any action which is marked as linked to entry event is executed whenever given state is entered v
What are advantages of object models? Object models are efficient for communicating with the application experts and reaching a consensus about the significant aspects of the p
Determine the Other System Design Issue How to realise subsystems; through hardware or software? How is object model mapped on chosen hardware software? Mapping
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