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Define instance and schema?
Instance: Collection of data stored in the data base at a certain moment is
Schema: The overall design of the data base is known as the data base schema.
limitations and benefits in database tecknowlagy
Normalize the following table upto and including the 3NF. Submit a 1 page printout of only the final set of normalized tables in Data Architect. Just use Data Architect to do the t
Q. What is relational algebra and calculus? Explain the relational algebra operators :- Selection and predicate, set operation, joins and division. Sol. Relational Algebra
Scenario 1: Power goes out after the first instruction. What happens?
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What are the comparison operator in SQL? Comparison operator in SQL are =, LIKE and BETWEEN
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Define Two phase commit Two phase commit: To make sure atomicity, all the sites where a transaction is being executed must agree on the final outcome of the execution. The tran
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