The SQLITE_BUSY_SNAPSHOT error code is an extended error code for SQLITE_BUSY that occurs on WAL mode databases when a database connection tries to promote a read transaction into a write transaction but finds that another database connection has already written to the database and thus invalidated prior reads.
The following scenario illustrates how an SQLITE_BUSY_SNAPSHOT error might arise:
修改记录:English prose extracted; whitespace normalized; Korean context and classified official links added. Python code examples not redistributed. 译文说明已标注为自动翻译。