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Question

Observe the following query and choose the correct option.
SELECT DISTINCT name 
FROM student
WHERE ID IS NOT NULL;

a.

The query is syntactically wrong

b.

The query gives all the possible student names where a finite value exists for ID

c.

The query gives the names of the students that have a null ID and it also excludes identical names

d.

The query gives the student names where a finite value exists for ID and it excludes identical names

Posted under DBMS

Answer: (d).The query gives the student names where a finite value exists for ID and it excludes identical names

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Q. Observe the following query and choose the correct option.

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