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SQL Data Definition MCQ with Answers

SQL Data Definition Multiple Choice Questions (MCQ) to practice sql data definition quiz answers PDF, sql data definition worksheets for online degrees. Solve introduction to sql Multiple Choice Questions and Answers (MCQs), "SQL Data Definition Quiz Questions" and answers for computer science programs. Learn additional basic operations, aggregate functions, nested subqueries test prep for computer software engineer.

"The command that is used to add attributes to an existing relation, is said to be" Multiple Choice Questions (MCQ) on sql data definition with choices alter, modify, tailor, and eliminate for computer science programs. Solve sql data definition quiz questions for merit scholarship test and certificate programs for cheapest online computer science degree.

MCQs on SQL Data Definition


The command that is used to add attributes to an existing relation, is said to be



The term that allows specification of not only a set of relations, but also information about each relation, is known as

Data manipulation language
Data Declaration language
Data Declaration language
Data Definition language


When comparing a char type with a varchar type, one may expect extra spaces to be added to the

char type
varchar type
Both A and B
None of the above


Any tuple in the relation must correspond to values of the primary key attributes of some tuple in relation s, is said to be

Unique key attribute
Primary key attribute
Candidate key attribute
Foreign key attribute


All tuples in the relation are assigned null as the value for the new attribute, in the

Tailor command
Eliminate command
Alter command
Modify command