openpyxl to create and add data from MySQL or SQLite database table to Excel file in Python

openpyxl adding Database table to Excel page

MySQL

Here is the connection string , after successful connection we will use the variable my_conn in our examples below.

from sqlalchemy import create_engine
my_conn = create_engine("mysql+mysqldb://userid:pw@localhost/my_db")

usrid : Your MySql login user id
pw : Your MySql login password
localhost : Address of MySQL server, IP address or localhost
my_db : Database name of MySQL where our table is available.

Full code to copy and add all rows to student table is here

SQLite

from sqlalchemy import create_engine
my_conn = create_engine("sqlite:///D:\\testing\\my_db\\my_db.db")

Full code to copy and add all rows to student table is here

Query to get data

Here is the query to get 5 rows of data and all the columns from student table. Change the Query as per your requirement.

query="SELECT * FROM student LIMIT 0,5" # query

Full code to create Excel file with student table data is here

from openpyxl import Workbook
from openpyxl.styles import PatternFill,Font 

from sqlalchemy import create_engine
my_conn = create_engine("mysql+mysqldb://userid:pw@localhost/my_db")
query="SELECT * FROM student LIMIT 0,5" # query 
my_data=my_conn.execute(query) 

wb=Workbook()
ws1=wb.active # work with default worksheet
l1=[r for r in my_data.keys()] # List of column headers 
ws1.append(l1) # adding column headers at first row 

my_font=Font(size=14,bold=True) # font styles
my_fill=PatternFill(fill_type='solid',start_color='FFFF00') #Background color
for cell in ws1["1:1"]: # First row 
    cell.font = my_font
    cell.fill= my_fill

r,c=2,0 # row=2 and column=0
for row_data in my_data:
    d=[r for r in row_data]
    ws1.append(d)
my_path='G:\\My drive\\testing\\openpyxl\\demo2.xlsx'#Path 
wb.save(my_path)

Here we used append() to add data in next row. Here data inserting will start from top left column ( A1 ) and continue. We don't have control over from where the data population should start.

Here is a code which uses cell(row, column, data) to position the records at any location specified by row and column. Note the value set in this script as r,c=2,2. Change this value to give a different position to start. All column headers and data is automatically taken from the collected data set and placed inside the Excel file based on the set row and column values ( r,c=2,2 )
openpyxl Database table using row and columns

openpyxl Database table using row and columns

from openpyxl import Workbook
from openpyxl.styles import Font,Alignment 

from sqlalchemy import create_engine
my_conn = create_engine("mysql+mysqldb://root:test@localhost/my_tutorial")
query="SELECT * FROM student LIMIT 0,5" # query 
my_data=my_conn.execute(query) 

wb=Workbook()
ws1=wb.active # work with default worksheet
l1=[r for r in my_data.keys()] # List of column headers 

r,c=2,2 # row=2 and column=2, starting point of showing data

c1=c # for the first row or headers 
for k in my_data.keys(): # adding column headers 
    ws1.cell(r,c1,k)
    c1=c1+1    # increase the column value to move right

my_font=Font(size=14,bold=True) # font styles for column headers 
my_align=Alignment(horizontal='right')
for cell in ws1[r:r]: # header row formatting 
    cell.font = my_font # add bold style to header column
    cell.alignment=my_align # right align 
	
# Iterating through data and adding each row to Excel page
for row, text in enumerate(my_data, start=r+1): # adding data
    for d in range(len(text)): # each row of data 
        ws1.cell(column=c+d, row=row, value=text[d])

my_path='G:\\My drive\\testing\\openpyxl\\demo2.xlsx'#Path 
wb.save(my_path)

Using Pandas DataFrame

import pandas as pd 
from sqlalchemy import create_engine
my_conn = create_engine("mysql+mysqldb://userid:pw@localhost/my_db")
sql="SELECT * FROM student "
df = pd.read_sql(sql,my_conn)
df.to_excel('D:\\my_data\\student.xlsx') # Change the path

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Subhendu Mohapatra

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Database table data to Excel using openpyxl

MySQL

SQLite

Query to get data

Using Pandas DataFrame

Subhendu Mohapatra