有没有办法使用 python 字典在数据库中创建表？

Question

I have a large dictionary of items - ~400 columns. I have a script to detect and create the type of each item so I have {'age' = INT, "Name" = String,etc..) but I'm not sure how to use that to create a table in SQLAlchemy or directly creating the query?

I am using postgres but I am familiar with mysql & sqlite so anything that works for those I would be able to apply to my usecase.

Answer 1

What about this:

from sqlalchemy import create_engine, Table, Column, MetaData
metadata = MetaData()
fields = (Column(colname, coltype) for colname, coltype in your_dict.items())
t = Table(name, metadata, *fields)
engine = create_engine(database)
metadata.create_all(engine)

You need to have objects from sqlalchemy.sql.sqltypes rather than strings as values in your_dict :

from sqlalchemy.sql.sqltypes import String, Integer

See https://docs.sqlalchemy.org/en/13/core/type_basics.html for the whole list.