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Heap files (unordered file)
Mostly these files are unordered files. It is the easiest and most basic type. These files having of randomly ordered records. The records will have no exacting order. The operations we can do on the records are retrieve, insert and delete. The types of the heap file or the pile file Organisation are:
Explain Network Model in DBMS? Network Model - It was formalised within the late year of 1960s through the Database Task Group of the Conference on Data System Language (DBTG
Having clause This clause is used for producing conditions on grouped information. Example: Find maximum salary and department number of those departments where maxim
Question: One of the tasks a database management system must perform is to ensure that the data is still intact in the face of software and hardware failure. This task is known
What is RDBMS terminology for a row? A tuple is a RDBMS terminology for a row
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) Define a job scheduling strategy that will meet business requirement of reporting availability by 6am CST for the following cubes? Show the job scheduling dependencies in a picto
What is the meaning of Data independence? Data independence means a programs that are not dependent on the physical attributes of data and a programs that are not dependent on
Describe Specialsation and generalization? Specialisation /generalization: This is a top down and bottom up approach to the design of database. It displays the IS_A relation
Define Fifth Normal form is concerned with Ans : Fifth Normal form is concerned with Join dependency.
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