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Define an operator that a Relational Algebra does not have Ans: Relational Algebra does not have Aggregation operators.
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What are multiple inheritances? Multiple inheritances allow a class to inherit variables and methods from many super classes.
external view of DBMS in healthcare department?
Explain the concepts of relational data model? Relational Data Model - The relational model was first introduced through Prof. E.F. Codd of the IBM Research in the year 1970
What Command You Use What Day of the week were you born
What is meant by data-transfer rate? The data-transfer rate is the rate at which data can be retrieved from or kept to the disk.
What function divides one numeric expression by another and returns the remainder? MOD function divides one numeric expression by another and returns the remainder.
What is called mirroring? The simplest approach to introducing redundancy is to duplicate each disk. This method is called mirroring or shadowing.
State the Object Design for Processing The object design phase comes after analysis and system design phase. The object design phase includes implementation details like as i
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