A reproducible Python + SQL + DuckDB pipeline that turns a bounded cohort of real NYC 311 requests into operational metrics and Power BI-ready CSV datasets. SQL performs the main ELT transformations; ...
本文以 Apache Beam 官方文档 Beam Calcite SQL overview为主体骨架，结合仓库内 查询语法、词法结构、数据类型、标量函数等参考页以及 Beam SQL 扩展文档，并深入 sdks/java/extensions/sql 源码验证底层实现。
An end-to-end analytics project that extracts e-commerce data from the DummyJSON REST API, loads it into MySQL, inspects and cleans the data, and answers business questions using SQL. Data note: The ...
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