If you ask the engine to open a non-existent database file (using either server mode -database option or a stand-alone mode JDBC URL), the file and containing directory will be created.

如果您要求引擎打开一个目前不存在的数据库文件(使用服务器模式的- database选项或单机模式的JDBC URL)，就会创建该文件及其所在目录。

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