sqliteHow do I use SQLite to update or insert data?

SQLite is a popular database engine that is used to store and access data. It is a lightweight and powerful database that is easy to use. In order to update or insert data into a SQLite database, you must first create a connection to the database. This can be done using the sqlite3 module.

Once the connection is established, you can use the cursor object to execute SQL statements. To update or insert data, you can use the execute method of the cursor object.

For example, to insert a new row into a table named users, you can use the following code:

import sqlite3

# Connect to the database
conn = sqlite3.connect('mydatabase.db')

# Create a cursor
c = conn.cursor()

# Execute the SQL statement
c.execute("INSERT INTO users (name, email) VALUES ('John', '[email protected]')")

# Commit the changes
conn.commit()

The above code will insert a new row into the users table with the name John and the email [email protected].

To update existing data in the database, you can use the UPDATE statement. For example, to update the email address of the user John:

import sqlite3

# Connect to the database
conn = sqlite3.connect('mydatabase.db')

# Create a cursor
c = conn.cursor()

# Execute the SQL statement
c.execute("UPDATE users SET email = '[email protected]' WHERE name = 'John'")

# Commit the changes
conn.commit()

The above code will update the email address of the user John to [email protected].

List of Code Parts

1. sqlite3 module: used to create a connection to the database.
2. cursor object: used to execute SQL statements.
3. execute method: used to update or insert data.
4. INSERT statement: used to insert new data into the database.
5. UPDATE statement: used to update existing data in the database.

Relevant Links

1. SQLite Python tutorial
2. SQLite Insert
3. SQLite Update

Edit this code on GitHub