adplus-dvertising
frame-decoration

Question

In a relation

a.

Ordering of rows is immaterial

b.

No two rows are identical

c.

a and b both are true

d.

None of these

Posted under Relational Databases DBMS

Answer: (c).a and b both are true

Engage with the Community - Add Your Comment

Confused About the Answer? Ask for Details Here.

Know the Explanation? Add it Here.

Q. In a relation

Similar Questions

Discover Related MCQs

Q. The RDBMS terminology for a row is

Q. Which of the operations constitute a basic set of operations for manipulating relational data?

Q. A primary key is combined with a foreign key creates

Q. A primary key if combined with a foreign key creates

Q. The relational model consists of:

Q. A primary key is which of the following?

Q. A foreign key is which of the following?

Q. Relations are:

Q. A relation has which of the following properties?

Q. The entity integrity rule states that:

Q. When mapping a multivalued attribute into a relation which of the following is true?

Q. When mapping a regular entity into a relation which of the following is true?

Q. When mapping a binary many-to-many relationship into a relation which of the following is true?

Q. When mapping a many-to-many unary relationship into a relation which of the following is true?

Q. When mapping a ternary relationship with an associative entity into a relation which of the following is true?

Q. When mapping a supertype/subtype relationship which of the following is true?

Q. If no multivalued attributes exist in a relation, then the relation is in what normal form?

Q. If no multivalued attributes exist and no partial dependencies exist in a relation, then the relation is in what normal form?

Q. A transitive dependency is which of the following?

Q. What is the best data type definition for Oracle when a field is alphanumeric and has a fixed length?