Problems encountered in connecting the database of the project and their solutions

Downloaded django-vue-admin project , Want to run , But it has been stuck on the database , Solved it for two days , It must be recorded , Give me this database to see later （ Woo woo ）

The first topic

1、 First, the following is the project database configuration , What is commented out here is the , I changed the database address, password and database name

• The database password here refers to the password of the database service installed locally ！！！ That is to say, no matter where you get the project , You have to change this password into your own database password first （ ok , Maybe only today I know sadness .jpg）
• Database name ： You need to create a database locally , The name for django

Let me explain one more point before linking the database ： The database connection tool I use is navicat, Then there is a relationship when creating data Database connection ----> database ------> surface

• That is, you need to create a database connection first （ You need to use the database password 、 Database user name ）
• Then create a database inside the connection （ To enter the database name 、 Character set, etc. ）
• Then create a data table in the database
  I really don't want to say that I always thought that database connection is database name , Purring

2、 Create database connection

Again, oh, oh, oh, oh, oh

Then double click the connection name , Connection name lights up , And you can see some initial things , Indicates that the database connection was created successfully


3、 Create database

Again, oh, oh, oh, oh

In this case , The database is created successfully , The following is what I created when running this project , The connection is called django, The database name is also called django

The second topic

---------- Then talk about how the data in the project can appear in the database connection tool -------

1、 First of all, you must create a database in the database connection tool （ Of course, Ning can also use commands to create ha ）, See the previous topic
2、 Once you've created it , Then execute the migration command and data initialization command in the project

• python manage.py makemigrations
• python manage.py migrate
• python manage.py init
  After executing these three lines of commands , Refresh the database , You can see the data table and data in the project
  

------ Finally, let's look at the problems encountered in this process （ It belongs to picking the wound, sobbing and hawing ）-------

When I install the database , And after creating the connection , That is to say, after finishing everything mentioned in the first topic , In execution python manage.py makemigrations On this order , Report errors ：

MySQLdb._exceptions.OperationalError: (1049, “Unknown database
‘django’”)

The problem ： The database in the project is called django（ This is the database name ）, When executing this command ,django（ there django It's the frame name ） Can't connect to your database , Because there is no database in your database server called django, So report this mistake .
This is because I thought the connection I created was a database , So after building the connection , Just keep executing this order , I am guilty of ！
Database created （ Of course, the name is the same as that written in the project django） Then run the three commands , It's going well ！！！

----- Okay , Here we go. , I also forgot other questions ....