Start learning →

Because operand order matters, the Difference operator is described as:

ANoncomparative
BNoncommutative
CNoncumulative
DNonconsecutive
Answer & Solution
Correct answer: B. Noncommutative
1. Swapping the two relations changes the answer. 2. Union and Intersection do not behave that way. 3. So Difference is noncommutative. _Source: OpenStax Introduction to Computer Science, Chapter 8, Data Management._
Practise this question with Quill — Computer Science — Tanzania →

Keep practising Relational Databases

Browse all Relational Databases questions for Computer Science — Tanzania, or explore more Computer Science topics.

Start a Relational Databases lesson →
Related questions
Database bingoType the numberSort the database wordsRelational or NoSQLSlice the database wordsRun the database gatesPop the SQL sublanguagesCatch the database words