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What are the properties in a relation ?
In a relation Ordering of rows is immaterial and No two rows are identical.
differences between a classified catalog and a dictionary catalog
Before we talk about the relational model in more detail, let us first define some very basic terms used in this model. Tuple Every row in a table shows a record and is cal
as a customer service employee, explain five measures you would recommend a displeased student to patronise a school canteen
What are the comparison operator in SQL? Comparison operator in SQL are =, LIKE and BETWEEN
Synonyms and Indexes Some of the essential properties of indexes are: An Index is a schema Object Indexes can be formed explicitly or automatically Indexes are m
What are shortcomings in structured approach? Structured methodology treats data and their behaviours separately, and this makes it harder to isolate changes. If changes are re
Compare three clustering algorithms in Weka. For this comparison, you will need to use at least two different datasets. Run the algorithms on the datasets, and use the visual
Database systems have many opposite efforts ?
discuss the purpose of the concurrency control?
The Conceptual Level or Global level The conceptual level presents a logical view of the complete database as a unified whole. It permits the user to bring all the data in th
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