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what is Mapping Constraints? with examples
What is deadlock? Neither of the transaction can ever proceed with its normal implementation. This situation is known as deadlock.
About Attribute inheritance
Attribute Preservation This is a easy and obvious necessity that includes preserving all the attributes that were there in the relation that is being decomposed.
Describe integrity and security? a) Domain constraint b) Referential integrity A value that appears in one relation for a given set of attributes also appear fo
explaination
a brief definition
how to write tables and drow E-R diagrams for hosiptal management system and how to normalize and cardinalities?
Explain the integrity constraints: Not Null, Unique, Primary Key with an example each. Is the combination 'Not Null, Primary Key' a valid combination. Justify. Not Null - Shou
define locking in simple language and decribed it
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