Merge pull request #4801 from BohuTANG/doc-deploy-python

chore(doc): add create user for deploy

docs/doc/20-develop/01-python.md

@@ -9,6 +9,20 @@ description:
 
 * **Databend :** Make sure Databend is running and accessible, see [How to deploy Databend](/doc/deploy).
 
+### Create a user and grant privileges
+
+```shell
+mysql -h127.0.0.1 -uroot -P3307 
+```
+
+```sql title='mysql>'
+create user 'databend'@'%' IDENTIFIED BY 'password123';
+```
+
+```sql title='mysql>'
+grant all privileges on *.* TO 'databend'@'%';
+```
+
 ### Python
 
 This guideline show how to connect and query to Databend using Python.
@@ -22,10 +36,10 @@ We will be creating a table named `books` and insert a row, then query it.
 #!/usr/bin/env python3
 import mysql.connector
 
-cnx = mysql.connector.connect(user='root', password='',
+cnx = mysql.connector.connect(user='databend', password='password123',
                               host='127.0.0.1',
 							  port = 3307,
-                              database='book_db')
+                              database='')
 
 # Create database, table.
 cursor = cnx.cursor()
@@ -59,7 +73,7 @@ cnx.close()
 
 import sqlalchemy
 
-engine = sqlalchemy.create_engine("mysql+pymysql://root:root@localhost:3307/")
+engine = sqlalchemy.create_engine("mysql+pymysql://databend:password123@localhost:3307/")
 conn = engine.connect()
 conn.execute("create database if not exists book_db")
 conn.execute("use book_db")

docs/doc/30-reference/30-sql/00-ddl/30-user/01-user-create-user.md

@@ -60,4 +60,22 @@ show users;
 +--------+-----------+----------------------+------------------------------------------------------------------+
 | user-b | localhost | sha256_password      | 5e884898da28047151d0e56f8dc6292773603d0d6aabbdd62a11ef721d1542d8 |
 +--------+-----------+----------------------+------------------------------------------------------------------+
-```
+```
+
+### Grant privileges to the user
+
+```text title='mysql>'
+grant all privileges on *.* TO 'user-a'@'%';
+```
+
+```text
+show grants for 'user-a'@'%';
+```
+
+```text
++------------------------------------------+
+| Grants                                   |
++------------------------------------------+
+| GRANT ALL ON 'default'.* TO 'user-a'@'%' |
++------------------------------------------+
+```