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Define blocks?
The database system resides eternally on non-volatile storage, and is into fixed-length storage units known as blocks.
Explain the two constraints, check and foreign key in SQL along with an example for each. Give the syntax. CHECK constraint - CHECK constraint specifies an expression which
What are called journaling file systems? File systems that support log disks are known as journaling file systems.
Benefits and Limitations od Data Models?
recovey techniques based on deferred update and immediate update
What is authorization graph? Passing of authorization from single user to another can be shown by an authorization graph.
In a relation, tuples are not inserted in any definite order. Ordering of tuples is not defined as a part of a relation definition. Though, records may be structured later accordin
Do the 11.1 11.1 Credit Card Use. Consider the following hypothetical bank data on consumers’ use of credit card credit facilities in Table 11.3. Create a small worksheet in Exce
as a customer service employee, explain five measures you would recommend a displeased student to patronise a school canteen
Having clause This clause is used for producing conditions on grouped information. Example: Find maximum salary and department number of those departments where maxim
What are the comparison operator in SQL? Comparison operator in SQL are =, LIKE and BETWEEN
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