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Programming Fundamentals
Programming Fundamentals

... Note: Examiner will be required to set TEN questions in all selecting FIVE questions from each unit. Students will be required to attempt FIVE questions in all selecting at least two questions from each unit. All questions will carry equal marks. UNIT-I Computer Fundamentals: Definition, Block Diagr ...
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... field of database management and earned Dr. Codd the coveted ACM Turing Award ...
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... the many powerful commands before undertaking any major work using it. Because there is a finite limit on memory, many features found in more expensive databases have been left out of DBQ. Whilst important, these are by no means essential for personal databases. Such features include full arithmetic ...
SlimShot: In-Database Probabilistic Inference for Knowledge
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... a factor graph. While this was the most expensive task in early systems [2], recently Tuffy [28] and ProbKB [8] have significantly improved its performance by first formulating it as a query evaluation problem then developing sophisticated optimizations; we do not discuss grounding in this paper. Th ...
Fundamentals of Database Systems
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... When corresponding columns are either equal, or both contain null, two rows are regarded as duplicates. Arithmetic operations +, -, *, and / all return null if one of their arguments is null. COUNT (*) handles null values as other values. Other aggregate operations ( SUM, AVG, MIN, MAX, and variatio ...
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Database model



A database model is a type of data model that determines the logical structure of a database and fundamentally determines in which manner data can be stored, organized, and manipulated. The most popular example of a database model is the relational model, which uses a table-based format.
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