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What is average response time? The average response time is that the average time for a transaction to be done after it has been submitted.
What are the ways in which the variable-length records arise in database systems? Storage of many record types in a file. Record types that permit variable lengths for one o
What is an ERD?
Explain P command in the respect of QBE? P: It is the command in which is used to print (logically display) the value of the attribute in whose cell it is writ
What are the properties of transaction? There are three properties of transactions :- A) Atomicity B) Consistency C) Isolation
A set of possible data values is called? A set of possible data values is called as domain.
What is a function group? A function group is a collection of logically related modules that share global data with every other. All the modules in the group are contained in
Define tuple variable? Tuple variables are used for comparing two tuples in the same relation. The tuple variables are explained in the from clause by way of the as clause.
Define the terms i) Entity type ii) Entity set Entity type: An entity type describes a collection of entities that have the similar attributes. Entity set: The set of all en
Create centralized relational database using Top down method- Construction of Logical Model: Translation EERD into Relational Schema: Use the 8 steps algorithm of converting EERD
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