PRACTICE QUESTIONS NEW - SQL MCQ
- Option : B
- Explanation :
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3. The DBMS language component which can be embedded in a program is
- Option : B
- Explanation :
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4. Count function in SQL returns the number of
- Option : A
- Explanation : Count function in SQL returns the number of values. (Count function counts all the not null values in the specific column. If we want to count only distinct values than the DISTINCT keyword is also to be used)
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5. It is possible to define a schema completely using
- Option : B
- Explanation :
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