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Atomicity : Either all functions are laid out or none are. Users could not have to think about the effect of incomplete operations. DBMS ensures this by undoing the functions
With the help of an example display how records can be deleted and updated in QBE. (i) Increase Pay_Rate of employees along with the skill of ‘cook' by 10%. (ii) Delete employee
Describe the various types of Online Analytical Processing (OLAP) tools and briefly discuss how the support common analytical operations.
statical data
Explain the Object-oriented decomposition Object-oriented decomposition targets at identifying individual sovereign objects that encapsulate both a state and certain behavio
What Is Sql? Structured Query Language (SQL) is a standard query language. It is usually used with all relational databases for data manipulation and definition. All the re
What subschema expresses ? A subschema expresses the external view. (External schemas are called also called as subschemas)
a brief definition
prototype of a distributed information system for a national car part retail outlet chain.
Explain the conventions (relationships) for displaying an ER schema as an ER diagram.
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