Quarterly Transaction Volumes by Algorithm SQL

This SQL script is designed to analyze the transaction volumes of different cryptocurrency algorithms on a quarterly basis for the year 2020. It uses a common table expression (CTE) to first calculate the total volume for each algorithm per quarter, and then joins this data together to provide a comprehensive view of the transaction volumes throughout the year.

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Here is the Quarterly Transaction Volumes by Algorithm SQL from HackerRank using CodeRankGPT:

The script first creates a CTE named 'QuarterVolumes' that groups transactions by the algorithm and the quarter of the year, and calculates the sum of the transaction volumes. It then selects from this CTE for each quarter, joining on the algorithm and the quarter number. This results in a table that shows the total transaction volume for each algorithm for each quarter of 2020. The final result is ordered by the algorithm name.


WITH QuarterVolumes AS (
    SELECT
        C.Algorithm,
        Quarter(Dt) AS Quarter,
        SUM(Volume) AS V
    FROM
        coins C
        INNER JOIN transactions t ON t.coin_code = C.code
    WHERE
        Year(Dt) = 2020
    GROUP BY
        C.Algorithm, Quarter(Dt)
)

SELECT
    Q1.Algorithm,
    Q1.V AS Q1_v,
    Q2.V AS Q2_v,
    Q3.V AS Q3_v,
    Q4.V AS Q4_v
FROM
    QuarterVolumes Q1
    LEFT JOIN QuarterVolumes Q2 ON Q1.Algorithm = Q2.Algorithm AND Q2.Quarter = 2
    LEFT JOIN QuarterVolumes Q3 ON Q1.Algorithm = Q3.Algorithm AND Q3.Quarter = 3
    LEFT JOIN QuarterVolumes Q4 ON Q1.Algorithm = Q4.Algorithm AND Q4.Quarter = 4
WHERE
    Q1.Quarter = 1
ORDER BY
    Q1.Algorithm ASC;

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