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Explain retrieval in QBE?
Retrieval in QBE : A "GUI" for expressing queries.
But has influenced many projects Especially PC Databases: Paradox, Access, etc.
The data of a view is not physically stored, but derived from one or more tables. True the data of a view is not physically stored
Which is another name for weak entity? Child is another name of weak entity.
what is attribute is attribute inheritance in dbms?
Hello.I have database access assignment which consist of creation Form, Subform, Calculation, Macros
The Database administrator (DBA) uses the data dictionary in each phase of a database life cycle, beginning from the data gathering phase to the design, execution and maintenance p
Due date for May 8
Creating views with check option : This option limits those updates of data values that cause records to go off the view. The following instance tells this in more detail: Examp
Discuss how the one-to-one associations have to be implemented. Some of properties of associations can be implemented directly by providing suitable declarations of the data me
Represent the following scenarios with E-R diagrams drawn using the ER Assistant software. The diagrams should indicate cardinality and optionality of relationships. Transform each
What is Cross Product? Simply Cross product is Binary Operator
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