MySQL database connection status, do not modify the database table structure, database migration operations;

During the development process, the Python flask framework uses sqlalmysql to connect to the MySQL database.

Do not modify the structure of the data table during program connection data volume. For example, in the connection state using the following software to modify the structure of the data table, the software will immediately die, this use stop flask connection, you can recover from the state of the card, normal execution down.

　　

, dump SQL file can copy the table structure and data of the database, or as long as the table structure. Then through execute SQL File, these data tables and the data inside import into another database

MySQL database connection status, do not modify the database table structure, database migration operations;