singledatabasefromdjango.dbimportconnectionwithconnection.cursor()ascursor:cursor.execute('SELECTversion()')row=cursor.fetchone()multipledatabasesfromdjango.dbimportconnectionswithconnections['my_db_alias'].cursor()ascursor:cursor.execute('SELECTversion()')参考连接：直接执行自定义SQL以对多个数据库使用原始游标
