Database Systems Practice Test 236
Embedded SQL Multiple Choice Questions (MCQs) PDF Download - 236
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The MCQ: The variable in any expression of the query is called a; "Embedded SQL" App (Free Android & iOS) with answers: Cursor; Instant; Attribute; Tuple; for computer software engineer. Practice Advanced SQL Questions and Answers, Apple e-Book to download free sample for online computer science schools.
Embedded SQL MCQ Quiz with Answers PDF Download: Test 236
The variable in any expression of the query is called a
- Instant
- Cursor
- Attribute
- Tuple
In entity relationship model, an entity is a
- Object
- Data
- Model
- Schema
Researchers have developed several data models to deal with the application domains, including
- Object-based Data model
- Semi-structured data model
- Rational data model
- Both A and B
The use of keywords begin atomic ...end was introduced in
- SQL:1998
- SQL:1999
- SQL:2000
- SQL:2001
Select project, and rename operations are called unary operations, because they operate on
- One tuple only
- One relation only
- One attribute only
- One instance only
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- At physical level, to allow efficient access to data, we must define
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