Integrity Constraints Multiple Choice Questions (MCQ) PDF - 104

MCQ 516: Currently, no widely used database systems supports constructs of

1. create check
2. create validity
3. create assertions
4. create domain

MCQ 517: In the user-defined constraints on generalization, the lower level entity sets can be of type

1. 2 types
2. 3 types
3. 4 types
4. 5 types

MCQ 518: A connection is opened using the getConnection method of the

1. Driver-Manager class
2. Driver-Builder class
3. Build-Manager class
4. Built-in class

MCQ 519: The outer join basically have forms of operation of

1. 2 types
2. 3 types
3. 4 types
4. 5 types

MCQ 520: The basic data type, a fixed-length string with user-specified length, is said to be

1. char
2. varchar
3. smallint
4. float