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20 multiple choice questions on SQL

Quiz by Edwin Torralba

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50 questions
Show answers
  • Q1
    What does SQL stand for?
    Structured Query List
    Structured Query Logic
    Structured Queery Language
    Structured Query Language
    30s
  • Q2
    Which of the following is not a SQL command?
    GRAB
    DELETE
    UPDATE
    SELECT
    30s
  • Q3
    Which of the following is used to join two or more tables?
    JOIN
    COMBINE
    MATCH
    MERGE
    30s
  • Q4
    What is the keyword used to sort data in SQL?
    SORT BY
    GROUP BY
    RANK BY
    ORDER BY
    30s
  • Q5
    Which keyword is used to retrieve only distinct values?
    DIFFERENT
    SINGULAR
    DISTINCT
    UNIQUE
    30s
  • Q6
    What is the command used to add rows to a table?
    CREATE
    INSERT
    ADD
    APPEND
    30s
  • Q7
    Which of the following is used to filter records based on a condition?
    HAVING
    CASE
    WHERE
    IF
    30s
  • Q8
    What is the keyword used to group data in SQL?
    SORT BY
    ARRANGE BY
    GROUP BY
    ORDER BY
    30s
  • Q9
    Which of the following is used to delete data from a table?
    REMOVE
    CLEAR
    DELETE
    DROP
    30s
  • Q10
    Which SQL command is used to modify existing data?
    MODIFY
    CHANGE
    UPDATE
    ALTER
    30s
  • Q11
    In a relational database, what is a primary key?
    A foreign key in a related table
    An index for frequently searched fields
    A unique identifier for a record in a table
    A column that contains only numeric values
    30s
  • Q12
    What is normalization in database design?
    The process of exporting data to a different format
    The process of dividing a table into multiple tables
    The process of adding new columns to a table
    The process of organizing data to minimize redundancy
    30s
  • Q13
    What is an SQL query?
    A statement that updates data in a database
    A statement that retrieves data from a database
    A statement that creates a new database
    A statement that deletes data from a database
    30s
  • Q14
    What is the purpose of a foreign key?
    To establish a link between two tables
    To speed up searches on a large table
    To store large binary data
    To ensure that data is unique in a column
    30s
  • Q15
    What is ACID in database transactions?
    A feature that allows for concurrent database access
    A type of data compression used in databases
    A programming language for database management
    A set of properties that guarantee reliable processing of database operations
    30s

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