How do i update values in an SQL database? SQLite/Python

Question

I have created a table, and have inserted data into the table. I wanted to know how I could update/edit the data. For example, if I have multiple columns in the table, of which one is named 'age' and the data for the column is = '17', and I now wanted to replace '17' with '18', would I do the following?

import sqlite3 as lite
import sys

con = lite.connect('Records.db')

with con:
    cur = con.cursor()    
    cur.execute("INSERT INTO ExampleTable(Age) VALUES(18) WHERE (Age = 17)")

Answer 1

In sqlite3 with Python3.x works to me something like this:

newPrice = '$19.99'
book_id = 4
cursor.execute('''UPDATE books SET price = ? WHERE id = ?''', (newPrice, book_id))

Answer 2

To update values in a SQL database using the SQLite library in Python, use a statement like this one.

cur.execute("UPDATE ExampleTable SET Age = 18 WHERE Age = 17")

For a great introduction to using SQLite in Python, see this tutorial.