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还在用SQL做数据分析吗? 你可能错过了 DAX 的真正力量
无论是MySQL、PostgreSQL,还是Snowflake、BigQuery,只要会写SELECT,你就能和数据对话。它稳定、高效、逻辑清晰,是每个数据从业者的基本功。 这些需求,用SQL不是做不到,而是 成本太高 ——每换一个视角,就要重写一段逻辑;每加一个条件,就要多一层嵌套。更别说,结果还得手动导出、美化、发邮件。
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