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Consistency: This property makes sure that a complete transaction implementation takes a database from one consistent state to another consistent state. If the transaction fails even then the database should come back to a consistent state.
Which database level is closest to the users? External database level is closest to the users.
Implementation and SQL Applications
A B-tree of order how much children m has maximum ? m has maximum m mchildren in a B tree.
Design a gennalization and specialization hierarchy for an automobile sales company
how many hourse have been spent on a certain project
What is DML (Data Manipulation Language)? This language that enable user to access or manipulate data as organised by appropriate data model. Procedural DML or Low level: DM
What is the use of keyword ISA? The use of keyword ISA is to show that a class is a specialization of another class.
Create a view emp_dep containing e_name and number of dependents from the tables employee and dependent of (i) CREATE VIEW emp_dept AS SELECT ename, COUNT(*) FROM employee, dep
What are object interaction diagrams? Object interaction diagrams are the diagrams that used to describe order in which messages are communicated in execution of an operation,
Give the levels of data abstraction? There are three levels of Data Abstraction a) Physical level b) logical level c) view level
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