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Define- relational algebra.
The relational algebra is a procedural query language. It having of a set of operations that take one or two relation as input and make a new relation as output.
Automated system for appointment with sms and call confirmation with service providers and user has to be initiate automatically. After selecting time and date to use service, s
what is attribute is attribute inheritance in dbms?
what is relationship inheritance and attribute inheritance
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State the terms Designing the database and Normalization Designing the database: Out of the ERD we have formed, it is very easy to verify the tables, the attributes which the
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What is the most significant feature that does not directly map into programming language structures? Why? Association, since there are complex types of association, like as qu
What is the meaning of Recovery? In deferred update methods, if a transaction fails before arriving its commit point, it will not have altered the database in any way, so UNDO
what is cascading? what is rollback cascading? please explain in detail
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