Connect SQLite with Python

First you have to install Python and SQLite on your syatem.

Install Python

Use the following code:

Press y and installation will be completed within seconds.

Install SQLite

Installation steps

type in the following command:

After installation check installation, sqlite terminal will give you a prompt and version info ?

Go to desired folder and create database:

sqlite3 database.db

It’ll create database.db in the folder you’ve given the command.

To check if your database is created, use the following command in sqlite3 terminal:

Note: To connect SQLite with Python, you do not need to install the connection module separately because its being shipped by default along with Python version 2.5.x onwards.

SQLite with Python

Create a python file “connect.py”, having the following code:

 #!/usr/bin/python  import sqlite3  conn = sqlite3.connect(‘tutoraspire.db’)  print “Opened database successfully”; 

Execute the following statement on command prompt:

Now connection is created with the tutoraspire database. Now you can create a table.

Create a table

Create a table “Employees” within the database “tutoraspire”.

Create a python file “createtable.py”, having the following code:

 #!/usr/bin/python  import sqlite3  conn = sqlite3.connect(‘tutoraspire.db’) print “Opened database successfully”;  conn.execute(”’CREATE TABLE Employees        (ID INT PRIMARY KEY     NOT NULL,        NAME           TEXT    NOT NULL,        AGE            INT     NOT NULL,        ADDRESS        CHAR(50),        SALARY         REAL);”’) print “Table created successfully”;  conn.close() 

Execute the following statement on command prompt:

A table “Employees” is created in the “tutoraspire” database.

Insert Records

Insert some records in “Employees” table.

Create a python file “connection.py”, having the following code:

 #!/usr/bin/python  import sqlite3  conn = sqlite3.connect(‘tutoraspire.db’) print “Opened database successfully”;  conn.execute(“INSERT INTO Employees (ID,NAME,AGE,ADDRESS,SALARY)        VALUES (1, ‘Ajeet’, 27, ‘Delhi’, 20000.00 )”);  conn.execute(“INSERT INTO Employees (ID,NAME,AGE,ADDRESS,SALARY)        VALUES (2, ‘Allen’, 22, ‘London’, 25000.00 )”);  conn.execute(“INSERT INTO Employees (ID,NAME,AGE,ADDRESS,SALARY)        VALUES (3, ‘Mark’, 29, ‘CA’, 200000.00 )”);  conn.execute(“INSERT INTO Employees (ID,NAME,AGE,ADDRESS,SALARY)        VALUES (4, ‘Kanchan’, 22, ‘Ghaziabad ‘, 65000.00 )”);  conn.commit() print “Records inserted successfully”; conn.close() 

Execute the following statement on command prompt:

Records are inserted successfully.

Select Records

Now you can fetch and display your records from the table “Employees” by using SELECT statement.

Create a python file “select.py”, having the following code:

 #!/usr/bin/python  import sqlite3  conn = sqlite3.connect(‘tutoraspire.db’)  data = conn.execute(“select * from Employees”);  for row in data:    print “ID = “, row[0]    print “NAME = “, row[1]    print “ADDRESS = “, row[2]    print “SALARY = “, row[3], “n”  conn.close(); 

Execute the following statement on command prompt:

See all the records you have inserted before.

By same procedures, you can update and delete the table in SQLite database usnig Python.

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