Why both names are inserted if the length of one string is more than 5?
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1
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20
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January 9, 2023
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Ascending order wrong?
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0
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17
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December 20, 2022
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Is it just me, or 2nd question just doesn't make sense, is there an error?
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1
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19
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December 14, 2022
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Bug - 2nd question is completely the same as 1st, but has another answer with wrong info in the explanation
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1
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17
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December 13, 2022
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Any explanation for the now(), sleep(10), now() in question 2?
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1
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17
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December 13, 2022
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Explanation missing for question 4's answer
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2
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35
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November 23, 2022
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Question 1 answer using correlated subquery, as another option
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1
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23
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November 19, 2022
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How Question 3 is supposed to be solved if session variables were not covered in the course?
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0
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15
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November 18, 2022
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Your window function example isn't even supported by MySQL version, and why is GROUP BY there?
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0
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12
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November 18, 2022
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Typo in expected result for question 1
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1
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17
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November 18, 2022
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What "alternate rows" means in the 1st question?
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1
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22
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November 14, 2022
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For those wondering about question 4 answer with case and aggregate function
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0
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16
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November 12, 2022
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More details for quiz 5? Isn't TRUNCATE a DDL which can't be rolled back? And "log" is mentioned, which wan't in any topics in lessons
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0
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38
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November 10, 2022
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Aren't heap tables just tables where there is no clustered index? Why should they be in memory and not last after the restart?
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0
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17
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November 10, 2022
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Any possibility to add a clarification for the 2nd question?
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0
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19
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November 10, 2022
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Question 4 - some clarification? Correct answer contradicts the question in a way
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0
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18
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November 10, 2022
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Definition of child/parent tables for whose who wonder
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0
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26
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November 3, 2022
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Mistake in output table in Question 2, value "9" in bID from nowhere
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1
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34
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October 28, 2022
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What about DDL triggers?
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1
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27
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October 25, 2022
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How can we use cursor for a dynamic sql query?
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1
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46
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October 24, 2022
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No image which "explains the flow control"
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1
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48
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October 24, 2022
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What is meant by "secondary index" in this lesson?
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2
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40
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October 22, 2022
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Natural join with multiple columns of the same name
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1
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32
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September 21, 2022
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Change the capitalized letter
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1
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30
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September 21, 2022
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Cannot Use Order By on numbers
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1
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21
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September 16, 2022
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Terminal Screen sustaining time problem
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2
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27
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September 13, 2022
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The screen appearing time too short
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1
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23
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September 13, 2022
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The introductory paragraph is irrelevant
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1
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34
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September 11, 2022
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Not explained why it would be "catastrophic" if leaf nodes of InnoDB would point to rows
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1
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26
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September 8, 2022
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So do non-clustered indexes point to rows or pages?
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1
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26
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September 8, 2022
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