What Is The Meaning Of Empty Set In The Following Mysql #472
What is the meaning of “EMPTY SET” in the following MySQL command?</p> <pre><code class="language-sql"> SELECT fname, lname, person_id FROM person WHERE lname=’s’; /* after Execution*/ Mysql tool return EMPTY SET 0:00sec </code></pre>
This multiple choice question (MCQ) is related to the book/course
gs gs113 MySQL.
It can also be found in
gs gs113 Query Optimization - Query Mechanics - Quiz No.1.
What is the meaning of “EMPTY SET” in the following MySQL command?
SELECT fname, lname, person_id FROM person WHERE lname=’s’; /* after Execution*/ Mysql tool return EMPTY SET 0:00sec
No values
Error
Access denied
None of the mentioned
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