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why are older data base model are being replaced by new data model
how map binary relation one to one
Define Shared locks? Ans: Shared lock: Throughout concurrent execution of transactions, earlier than a transaction can access a data item, it has to obtain a lock on it. Now he
compare the features of oracle RDBMS with MySQL and Microsoft SQL server
how to construct labelled precedence graph for view serialiability.please explain insteps with one solved examples
Limitations of File Based System The file-based system has some limitations. The limitations are listed as follows: Isolation and separation of data: When the data is
how many hourse have been spent on a certain project
a) Distinguish between ‘database' and ‘Database Management Systems (DBMS)'. b) List and briefly describe five potential benefits of the database approach compared to conventio
case study
Describe the static hash file with buckets and chaining and show how insertion, deletion and modification of a record can be performed. In static hash file organization, the wo
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