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What are the aggregate objects in the data dictionary?
Hierarchical
Design an EER schema for the following application and translate the EER schema into relational schemas (and constraints). It is possible that some requirements cannot be captured
Define single valued and multivalued attributes. Single valued attributes: attributes with a single value for a particular entity are known as single valued attributes. Mult
An ideal data dictionary should have everything a DBA wants to know about the database. 1 Conceptual, External, and internal database descriptions. 2. Descriptions of attr
Storage Of Database On Hard Disks At this point, it is worthwhile to note the difference among the terms file Organisation and the access method. A file organisation shows to t
waht is a repeating group?
entity relationship diagram for online examination system
A relation instance indicates as r is a collection of tuples for a given relational schema at a exact point of time. A relation state r of the relation schema R (A 1 ,A 2 ,.....
In E-R diagram how generalization is represented? in E-R diagram generalization is represented by Triangle shape.
What is RDBMS terminology for a row? A tuple is a RDBMS terminology for a row
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