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  • Fahad Ahsan
    Fahad Ahsan
    2,595 Points

    SELECT JOBS.ROLE, COUNT(1) FROM EMPLOYEES JOIN JOBS ON EMPLOYEES.JOB_ID = JOBS.ID ;

    Posted September 8, 2021 12:18pm by Fahad Ahsan
    Fahad Ahsan
    2,595 Points
    • Databases
    • SQL Reporting by Example
    • Day 2: Advanced Selecting
    • Day 2: Review

    1 Answer

  • mihneaburtescu
    mihneaburtescu
    348 Points

    Please can you help me with the answer to understand how it works?

    Posted March 24, 2020 6:13pm by mihneaburtescu
    mihneaburtescu
    348 Points
    • Databases
    • SQL Reporting by Example
    • Day 2: Advanced Selecting
    • Day 2: Review

    1 Answer

  • Steve Rogers
    Steve Rogers
    3,285 Points

    trouble

    Posted October 29, 2019 10:29pm by Steve Rogers
    Steve Rogers
    3,285 Points
    • Databases
    • SQL Reporting by Example
    • Day 2: Advanced Selecting
    • Day 2: Review

    1 Answer

  • Steve Rogers
    Steve Rogers
    3,285 Points

    Counting issue?

    Posted October 21, 2019 2:24pm by Steve Rogers
    Steve Rogers
    3,285 Points
    • Databases
    • SQL Reporting by Example
    • Day 2: Advanced Selecting
    • Day 2: Review

    1 Answer

  • Mishu Jahur
    Mishu Jahur
    5,238 Points

    How can "GROUP BY" act on non-column values?

    Posted January 10, 2019 2:22am by Mishu Jahur
    Mishu Jahur
    5,238 Points
    • Databases
    • SQL Reporting by Example
    • Day 2: Advanced Selecting
    • Day 2: Review

    1 Answer

  • Donnie Driskell
    Donnie Driskell
    2,243 Points

    sql reporting by example: Day 2 Review (stuck)

    Posted January 6, 2018 3:46am by Donnie Driskell
    Donnie Driskell
    2,243 Points
    • Databases
    • SQL Reporting by Example
    • Day 2: Advanced Selecting
    • Day 2: Review

    2 Answers

  • sujal Khatiwada
    PLUS
    sujal Khatiwada
    Courses Plus Student 291 Points

    SQL Practice Problem

    Posted December 15, 2017 5:42am by sujal Khatiwada
    sujal Khatiwada
    Courses Plus Student 291 Points
    • Databases
    • SQL Reporting by Example
    • Day 2: Advanced Selecting
    • Day 2: Review

    1 Answer

  • olu adesina
    olu adesina
    23,007 Points

    SQL help! i know the answer but i want to understand why

    Posted December 12, 2017 10:59pm by olu adesina
    olu adesina
    23,007 Points
    • Databases
    • SQL Reporting by Example
    • Day 2: Advanced Selecting
    • Day 2: Review

    1 Answer

  • olu adesina
    olu adesina
    23,007 Points

    sql help do i need to use the group by key word

    Posted December 12, 2017 8:57pm by olu adesina
    olu adesina
    23,007 Points
    • Databases
    • SQL Reporting by Example
    • Day 2: Advanced Selecting
    • Day 2: Review

    1 Answer

  • Rashmi Jha
    Rashmi Jha
    2,842 Points

    Fill in the blanks

    Posted October 22, 2017 9:10am by Rashmi Jha
    Rashmi Jha
    2,842 Points
    • Databases
    • SQL Reporting by Example
    • Day 2: Advanced Selecting
    • Day 2: Review

    2 Answers

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