Sequel is a simple, flexible, and powerful SQL database access toolkit for Ruby. Sequel provides thread safety, connection pooling and a concise DSL for constructing SQL queries and table schemas.
Not all of these releases were tagged on GitHub and none of them have release notes on GitHub. Releases prior to 0.5.0 were not documented (although some were tagged on GitHub).
大表 JOIN 卡死说到底就三个原因:数据量没控制住、索引没跟上、执行顺序瞎搞。紧急的时候先止血控制数据量加索引,平时老老实实按规范写 SQL,架构上该拆就拆别心疼。 说出来你可能不信,去年双十一前一周,我们组的后端小哥差点提离职。 原因是他在 ...
I’ve seen a lot of promising AI prototypes fall apart after launch. And it’s rarely because the model was bad. More often, the problem starts much earlier; teams treat the data layer like something ...
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