Python Creating SQLite Database and Table

Python Python sqlite3 sqlite

In this article, we’re going to learn how to create a new SQLite 3 database in Python program. And then execute a SQL script to create a new data table on that new database.

Step 1 - Creating new SQLite database

The Python code below to create a new SQLite 3 database file and saved it to D:\ToriCode\db folder named contacts.db

import sqlite3 
from sqlite3 import Error

connection = None
try:
    connection = sqlite3.connect('D:\ToriCode\db\contacts.db')
except Error as e:
    print(e)
finally:
    if connection:
        print('Connect to database successfully.')

Step 2 - Creating new table in SQLite database

The Python code snippet below to continue using the connection object above to execute creating table SQL script.

if connection:
    sql_create_table = """
        CREATE TABLE IF NOT EXISTS contacts ( 
            id integer PRIMARY KEY,
            first_name text NOT NULL,
            last_name text NOT NULL
        ); 
    """
    try:
        cursor = connection.cursor()
        cursor.execute(sql_create_table)
    except Error as e:
        print(e)
    finally: 
        print('Execute SQL script successfully.')
    connection.close()

The complete Python program code:

import sqlite3 
from sqlite3 import Error

connection = None
try:
    connection = sqlite3.connect('D:\ToriCode\db\contacts.db')
except Error as e:
    print(e)
finally:
    if connection:
        print('Connect to database successfully.')

if connection:
    sql_create_table = """
        CREATE TABLE IF NOT EXISTS contacts ( 
            id integer PRIMARY KEY,
            first_name text NOT NULL,
            last_name text NOT NULL
        ); 
    """
    try:
        cursor = connection.cursor()
        cursor.execute(sql_create_table)
    except Error as e:
        print(e)
    finally: 
        print('Execute SQL script successfully.')
    connection.close()
Output:

Connect to database successfully.
Execute SQL script successfully.

Open the database on the DbVisualizer application and we will get the result as below.

Python Creating SQLite Database and Table