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what is data link layer
Hot Backup: Some sites cannot terminate the database while creating a backup copy of the files. The cold backup is not a reliable option. So different kinds of backing up database
Define the concept of aggregation. Give two examples where this concept is useful. Ans: Aggregation transforms a relationship among the objects into a higher-level object. A
Can a filed occur in several field groups. Yes. But it leads to redundant data redundancy.
What is meant by mean time to failure? The mean time to failure is the amount of time that the system could run continuously without failure.
Entity types that do not have any key attribute, and therefore cannot be identified independently, are known as weak entity types. A weak entity can be recognized uniquely only by
Introductory course and so does not require any fancy coding. I will provide a guidance document to help you in producing the solutions.
What is the difference between the function module and a normal ABAP/4 subroutine? In contrast to normal subroutines function modules have uniquely exact interface. Declaring da
CAN SOMEONE HELP ME WITH ENTITY DIAGRAMS IN FIRST NORMAL FORM?
Fourth Normal Form (4NF) When attributes in a relation have multi-valued dependency, further Normalization to 4NF and 5NF are needed. Let us first find out what multi-valued d
Define object-relational systems? Systems that give object-oriented extensions to relational systems are known as object-relational systems.
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