Nested Subqueries Practice Test PDF Download eBook p. 285
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"The Not Exists construct is used to test in a relation for the", nested subqueries Multiple Choice Questions (MCQ) with choices existence of attributes, existence of tuples, non-existence of tuples, and non-existence of attributes for online database certification. Learn introduction to sql questions and answers with free online certification courses for computer science programs.
Trivia Quiz on Nested Subqueries PDF Download eBook
MCQ: The Not Exists construct is used to test in a relation for the
- Existence of tuples
- Existence of attributes
- Non-existence of tuples
- Non-existence of attributes
C
MCQ: For grouping the attributes to form various tables, the second way is to use
- Algorithms
- Functions
- Relational model
- Entity relationship model
A
MCQ: We can drop attributes from a relation by the command
- alter table r drop A;
- alter table r delete A;
- modify table r delete A; alter table r drop A;
- alter table r drop A;
D
MCQ: Values of one type of data can be converted to another domain using the type conversion
- Define
- Modify
- Alter
- Cast
D
MCQ: Oracle and IBM DB2 allow Java functions to run as part of the database
- Procedure
- Product
- Process
- Program
C