1.使用Python3.7 Django2.2 MySQL 5.5 在执行（python manage.py migrate）命令时出现错误django.db.migrations.exceptions.MigrationSchemaMissing
原因是
所以，需要重新安装高版本的sql，安装好之后，问题就解决了
2.Django数据同步过程中遇到的问题：
1）raise ImproperlyConfigured(‘mysqlclient 1.3.13 or newer is required; you have %s.‘ % Database.__version__)
django.core.exceptions.ImproperlyConfigured: mysqlclient 1.3.13 or newer is required; you have 0.9.3.
解决办法：C:Python37Libsite-packagesdjangodbbackendsmysql（python安装目录）打开base.py，注释掉以下内容：
if version < (1, 3, 13):
raise ImproperlyConfigured(‘mysqlclient 1.3.13 or newer is required; you have %s.‘ % Database.__version__)
2） File "C:Python37libsite-packagesdjangodbbackendsmysqloperations.py", line 146, in last_executed_query
query = query.decode(errors=‘replace‘)
AttributeError: ‘str‘ object has no attribute ‘decode‘
解决办法：打开此文件把146行的decode修改为encode
参考
https://blog.csdn.net/qq_36963372/article/details/82558085
https://www.cnblogs.com/olivertian/p/10919550.html