AST clone on every cache hit. The SQL parse is cached, but the AST is .clone()‘d on every sqlite3_exec(), then recompiled to VDBE bytecode from scratch. SQLite’s sqlite3_prepare_v2() just returns a reusable handle.
magnitude, which means integer rounding in Lab is already equivalent to 2dp
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There are libraries like Readline, JLine, or the Python Prompt Toolkit that help you do this in various programming languages, but you can also do it yourself. This post will explore the basics of how you can control the terminal from any command-line program, with examples in Python, and how your own code can directly make use of all the special features the terminal has to offer.
以北京为例，《北京教育考试院关于做好2026年初中学业水平考试报名工作的通知》显示，随迁子女只能报考中等职业学校，且需满足持有居住证明、合法稳定住所、有合法稳定职业3年、连续缴纳社保3年等条件。