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#what is cursor its uses ? Explain it
What is relationship instance ? Relationship Instance - A relationship is a relation between two or more entities. An instance of relationship set is a set of relationships.
About Attribute inheritance
What is vertical fragmentation? Vertical fragmentation divides the relation by decomposing the scheme R of relation r.
External failure : A failure can also result because of an external cause, such as earthquakes, fire, floods, etc. The database must be duly backed up to avoid troubles occurring d
what is 3nf
Association as a cache This association must be updated when any new element is added to it, but testing for overlap using association is more efficient. Figure:
The database application project (DAP) for this assignment consists of the creation of a fully functional Microsoft Access database application for a real client. I recommend you s
What is a primary key? Primary key is chosen by the database designer as the principal means of identifying an entity in the entity set.
Mention the various user privileges All privileges directly granted to the user or role. All privileges granted to roles that have been granted to the user or role.
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