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Write short notes on relational model The relational model uses a collection of tables to show both data and the relationships between those data. The relational mo
Problem 1. Describe the following a) Advantages of Database Systems b) Functions of a DBMS Explanation of part (a) and (b) 2. Explain the following concepts w
What is D command work in the respect of QBE? D: It is the command inside QBE to delete tuple(s) from the relation.
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
What is a database graph? The partial ordering implies that the set D may now be viewed as a directed acyclic graph, known as a database graph.
What is meant by mean time to failure? The mean time to failure is the amount of time that the system could run continuously without failure.
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Northwind Pty Ltd sells a variety of food products throughout the world. They want to use the reporting features of SAP''s Business Information Warehouse to better understand thei
Define Thomas write rule Thomas' write rule: The Thomas' write rule is a modification of timestamp-ordering protocol for concurrency control. Assume that transaction T i issue
Process of normalization is the integral part of designing a database. Justify this statement with suitable database design
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