Database Systems Practice Test 35
Database Views Quiz Questions with Answers PDF Download - 35
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The Quiz: A view is updatable, if the Select clause does not have any; "Database Views" App (iOS, Android) with answers: aggregates, expressions, and distinct specification for computer information science. Study SQL Concepts and Queries Questions and Answers, Apple e-Book to download free sample for free online classes.
Database Views Quiz with Answers PDF Download: MCQs 35
A view is updatable, if the Select clause does not have any
- Expressions
- Aggregates
- Distinct specification
- All of the Above
SQL provides a way of renaming the attributes of a result relation, taking the form
- old-name to new-name
- old-name as new-name
- ALTER old-name to new-name
- ALTER old-name at new-name
The schema for relation r, with 'R' denoting the set of attributes, can be expressed by the notation
- r
- R
- r(R)
- R (r)
The pass that determines which transactions to undo is known as
- Redo pass
- Analysis pass
- Undo pass
- Logical pass
The Data model that is widely used in the database design is
- Object-based Data model
- Relational Model
- Semi-structured data model
- Entity relationship model
Database Systems Exam Prep Tests
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Database Views Practice Tests
- SQL does not define a standard way of specifying that a view is
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