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Write short notes on tuple relational calculus.
The tuple relational calculation is anon procedural query language. It defines the desired information without giving a particular procedure for obtaining that information.
online eductional management system ke diagram
Consider a systems development project with the following data Activity Duration (weeks) Precedence Relationship 1. Software design
A student entity type has the following attributes,name..
What is Normalization? Database normalization is a data design and organization method applied to data structures based on rules that help building relational databases. In rel
In which form of relational database developer refers to a record? In a tuple form of relational database developer refers to a record.
What is schema
Server Control It is usual to control access to the data via the front end application, for example by displaying data as ‘read only'. This part of the assignment illustrates ho
Process of Adjustment of inheritance During object design, inheritance is readjusted by rearranging classes and operations, and abstracting common behaviour.
Can we delete data element, which is being used by table fields. No we cant delete data element.
Why containment is important in oosystems? Containment is an significant concept in oosystems because it allows dissimilar users to view data at different granularities.
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