How to Insert Image in SQLite using Python?

Last Updated : 16 May, 2021

In this article, we will discuss how to insert images in SQLite using sqlite3 module in Python.

Implementation:

1. Set the connection to the SQLite database using Python code.

sqliteConnection = sqlite3.connect('SQLite_Retrieving_data.db')
cursor = sqliteConnection.cursor()

2. We need to define an INSERT query for inserting the BLOB data into the table.

sqlite_insert_blob_query = """ INSERT INTO Student
                                 (name, img) VALUES (?, ?)"""

3. Converting human-readable file into binary data by calling this convertToBinaryData() function, and storing it empPhoto variable,

empPhoto = convertToBinaryData(photo)

4. Once the file converted into binary format, now let’s convert data into tuple format,

data_tuple = (name, empPhoto)

5. Use cursor.execute() to execute a SELECT query in Python.

cursor = sqliteConnection.cursor()
cursor.execute(sqlite_insert_blob_query, data_tuple)

6. Use sqliteConnection.commit() for saving the changes we made.

sqliteConnection.commit()

7. Create a function that converts Human Readable data into the binary format for storing it into database.

def convertToBinaryData(filename):

  # Convert binary format to images or files data
  with open(filename, 'rb') as file:
      blobData = file.read()
  return blobData

8. Close the cursor connection and MySQL database.

if sqliteConnection:
    sqliteConnection.close()
    print("the sqlite connection is closed")

Below is the implementation.

Python3

import sqlite3 
  
  
# Function for Convert Binary Data  
# to Human Readable Format 
def convertToBinaryData(filename): 
      
    # Convert binary format to images  
    # or files data 
    with open(filename, 'rb') as file: 
        blobData = file.read() 
    return blobData 
  
  
def insertBLOB(name, photo): 
    try: 
          
        # Using connect method for establishing 
        # a connection 
        sqliteConnection = sqlite3.connect('SQLite_Retrieving_data.db') 
        cursor = sqliteConnection.cursor() 
        print("Connected to SQLite") 
          
        # insert query 
        sqlite_insert_blob_query = """ INSERT INTO Student 
                                  (name, img) VALUES (?, ?)"""
          
        # Converting human readable file into  
        # binary data 
        empPhoto = convertToBinaryData(photo) 
          
        # Convert data into tuple format 
        data_tuple = (name, empPhoto) 
          
        # using cursor object executing our query 
        cursor.execute(sqlite_insert_blob_query, data_tuple) 
        sqliteConnection.commit() 
        print("Image and file inserted successfully as a BLOB into a table") 
        cursor.close() 
  
    except sqlite3.Error as error: 
        print("Failed to insert blob data into sqlite table", error) 
      
    finally: 
        if sqliteConnection: 
            sqliteConnection.close() 
            print("the sqlite connection is closed") 
  
insertBLOB("Smith", "D:\Internship Tasks\GFG\images\One.png") 
insertBLOB("David", "D:\Internship Tasks\GFG\images\person.png")