pymysql module connection operation mysql_mysql

import pymysql #Create 

connection channel 
conn = pymysql.connect (host = '', user = 'root', port = 3306, password = 'thinker', db = 'testdb') #Generate cursor for 
operation mysql 
cursor = conn.cursor () 

# Get data 
effect_row = cursor.execute ( 'select * from teacher') # and returns the affected functions 

print (cursor.fetchone ()) # print a data 

cursor.scroll (1, mode = 'relative ') # Review Cursor position, relative relative position movement 
cursor.scroll (0, mode = "absolute") #Modify cursor position, absolute absolute position movement, 0 means return to the beginning 

print (cursor.fetchmany (2)) #Print the specified bar数 数
print (cursor.fetchall ()) # Print all remaining data 


# Insert a row of data 
cursor.execute ("insert into teacher (teacher_name) values ​​('chenxiaozan')") #Insert 
multiple rows of data 
cursor.executemany ("insert into teacher (teacher_name) values ​​(% s) ", ['lucas', 'eric', 'loss']) #Note that there is some difference between the% s of Python string stitching, here is the data

conn.commit () #Confirm to submit 
cursor.close () #Close the cursor 
conn.close () #Close the connection 
new_id = cursor.lastrowid #When inserting data, insert the latest auto increment id 
print (new_id)