Basic SQL Quiz By - M Khan

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| By Teradatakhan
T
Teradatakhan
Community Contributor
Quizzes Created: 1 | Total Attempts: 194
| Attempts: 194
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  • 1/5 Questions

    Sorts are Alphabetical in SQL, not Logical.

    • True
    • False
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About This Quiz

Basic SQL Quiz By - M Khan assesses understanding of SQL syntax and operations. It covers topics like sorting, aliasing, query syntax, precedence rules, and wildcard usage, essential for database management skills.

Basic SQL Quiz By - M Khan - Quiz

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  • 2. 

    LIKE Keyword uses which two special character ?

    • # and @

    • $ and %

    • % and &

    • % and _ (underscore)

    Correct Answer
    A. % and _ (underscore)
    Explanation
    The LIKE keyword in SQL is used to search for a specified pattern in a column. It supports the use of two special characters: '%' and '_' (underscore). The '%' character is used to represent any sequence of characters, while the '_' character is used to represent a single character. Therefore, the correct answer is % and _ (underscore).

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  • 3. 

    SELECT * FROM Student_table WHERE Grade_pt = 3.0 OR 4.0; What will be the result ?

    • Display students from Grade_pt 3.0 or 4.0

    • Will show syntax error

    • Display only students from Grade_pt 3.0

    • Not Sure

    Correct Answer
    A. Will show syntax error
    Explanation
    The given SQL query is correct and will not show a syntax error. It will display all the rows from the Student_table where the Grade_pt is either 3.0 or 4.0.

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  • 4. 

    Which one is wrong Alias syntax ?

    • First_name AS Fname

    • Last_name Lname

    • Class_Code "Class Code"

    • Grade_pt AS AVG

    Correct Answer
    A. Grade_pt AS AVG
    Explanation
    The given syntax "Grade_pt AS AVG" is incorrect because it does not follow the correct alias syntax. In alias syntax, the keyword "AS" is used to assign an alias to a column or expression. The correct syntax would be "Grade_pt AS AVG" where "Grade_pt" is the column or expression being aliased and "AVG" is the alias assigned to it.

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  • 5. 

    What is the order of Precedence in SQL ?

    • ( ) NOT OR AND

    • AND OR NOT ( )

    • NOT OR ( ) AND

    • ( ) NOT AND OR

    Correct Answer
    A. ( ) NOT AND OR
    Explanation
    The order of precedence in SQL is determined by the use of parentheses, followed by the NOT operator, and then the AND and OR operators. In this case, the correct answer is "( ) NOT AND OR" which means that expressions inside parentheses are evaluated first, followed by the NOT operator, and then the AND and OR operators. This order ensures that the logical operations are performed in the correct sequence, allowing for accurate query results.

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  • Current Version
  • Mar 21, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • May 06, 2014
    Quiz Created by
    Teradatakhan
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