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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.
1. Staff(staffID, firstName, lastName, availabilityID, experience, phone, mobile, email); 2. Availability(availabilityID, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday,
What was the method in which records are physically stored in a specified order according to a key field in each record ? A method in which records are physically stored within
triggering
What do you mean by atomicity and aggregation? Atomicity : Either all actions are carried out or none are. Users should not have to worry about the effect of incomplete trans
Identification of concurrency Identification of concurrency: Dynamic model identifies concurrency. Two objects are said to be parallel (concurrent) if they can receive events a
In E-R Diagram how relationship type is represented ? In E-R Diagram relationship type is represented as a Diamond.
Difference between Operating System and Database Security Security within the operating system can be executed at various levels ranging from passwords for access to system, t
average response time?
Explain heap file with advantages? Heap File is an unordered set or a group of records, stored on a set of pages. This class gives basic support for inserting, updating, select
Explain Alternate key? Alternate Key - All the candidate keys except primary key are known as alternate keys.
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