Write a SQL query to calculate month-over-month and year-over-year growth rates.
Write a SQL query to calculate month-over-month and year-over-year growth rates.
题目类型: 技术面试题
这是一道技术面试题,常见于澳洲IT公司面试中。
难度: medium
标签: interviewbit, data-analyst, topic-specific, data-analysis, analytics
参考答案摘要
To calculate month-over-month growth, I first aggregate revenue by month using a CTE, then use LAG() to access the previous month’s value. WITH monthly AS ( SELECT DATE_TRUNC('month', order_date) AS m...
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