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Need a sample of a clinic database relationships
Explain the main advantages of DBMS over File Oriented System ?
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 relati
Which data type can store unstructured data? Raw data type can store unstructured data.
What is Foreign Key Foreign Key: Sometimes we may have to work with an attribute that does not have a primary key of its own. To recognize its rows, we have to use the primar
Discuss the methods for a hash file to expand and shrink dynamically. What are the advantages and disadvantages of each? The hashing methods that permit dyanamic file expansi
Define database management system? Database management system (DBMS) is a set of interrelated data and a combination of programs to access those data.
What is a candidate key? Minimal super keys are known as candidate keys.
What is OOM? Object oriented modeling is an approach by which modeling of systems is done by visualizing the system based on real world concepts. Object oriented modeling does
How does the system cope up with a record crash when recovery is going on after the first crash? Ans: In a system the undo and redo operations are needed to be idempotent to c
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