我在做 Perfetto 项目时，维护了一套基于 SQLite 的查询语言：PerfettoSQL。它本质上是 SQLite 的一个扩展版本，用来分析性能 trace，在 Google 内部大约有 10 万行代码，很多团队在用。

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SQL-based Sales Data Analysis project demonstrating data extraction, joins, aggregations, and reporting using SQLite, Python, and Excel. Generated sales reports and exported results for business ...