如何使用sqlalchemy获取在sqlite中创建的数据库的sql转储 [英] how to get sql dump of a database created in sqlite using sqlalchemy

问题描述

我有从json读取的数据，并使用python中的sql-alchemy以适当的模式输入到sqlite数据库中. (为此使用pd.dataframe.to_sql()).我想要此数据库的数据库转储(.sql文件). sql alchemy中是否有任何API可以做到这一点?

I have data read from json and fed into an sqlite database with proper schema using sql-alchemy in python. (used pd.dataframe.to_sql() for this). I want the database dump (.sql file) of this database. is there any api in sql alchemy that would do this?

推荐答案

假设您有一个与SQLite数据库关联的SQLAlchemy engine对象，则可以简单地使用Python的

Assuming that you have a SQLAlchemy engine object associated with your SQLite database you can simply use Python's iterdump method like so:

con = engine.raw_connection()
with open('C:/Users/Gord/Desktop/dump.sql', 'w') as f:
    for line in con.iterdump():
        f.write('%s\n' % line)

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