.3 (Contacts Database) Study the books.sql script provided in the ch17 examples folder's sql subfolder. Save the script as addressbook.sql and modify it to create a single table named contacts. The table should contain an auto-incremented id column and text columns for a person's first name, last name and phone number. make a Python script demonstrating: 1. insert contacts into the database, 2. query the database to list all the contacts and contacts with specific last name, 3. update a contact and 4. delete a contact. books.sql code: import panda as pd import sqlite3 connection = sqlite3.connect('books.db') pd.options.display.max_columns = 10 pd.read_sql("SELECT * FROM authors",connection) df = pd.read_sql( "SELECT * FROM authors",connection)
1.__7.3 (Contacts
books.sql code:
import panda as pd
import sqlite3
connection = sqlite3.connect('books.db')
pd.options.display.max_columns = 10
pd.read_sql("SELECT * FROM authors",connection)
df = pd.read_sql( "SELECT * FROM authors",connection)
DROP TABLE IF EXISTS author_ISBN;
DROP TABLE IF EXISTS titles;
DROP TABLE IF EXISTS authors;
CREATE TABLE authors (
id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
first TEXT NOT NULL,
last TEXT NOT NULL
);
CREATE TABLE titles (
isbn TEXT NOT NULL,
title TEXT NOT NULL,
edition INTEGER NOT NULL,
copyright TEXT NOT NULL,
PRIMARY KEY (isbn)
);
CREATE TABLE author_ISBN (
id INTEGER NOT NULL,
isbn TEXT NOT NULL,
PRIMARY KEY (id, isbn),
FOREIGN KEY (id) REFERENCES authors(id) ON DELETE CASCADE,
FOREIGN KEY (isbn) REFERENCES titles (isbn) ON DELETE CASCADE
);
PRAGMA foreign_keys = ON;
INSERT INTO authors (first, last)
VALUES
('Paul','Deitel'),
('Harvey','Deitel'),
('Abbey','Deitel'),
('Dan','Quirk'),
('Alexander', 'Wald');
INSERT INTO titles (isbn,title,edition,copyright)
VALUES
('0135404673','Intro to Python for CS and DS',1,'2020'),
('0132151006','Internet & WWW How to Program',5,'2012'),
('0134743350','Java How to Program',11,'2018'),
('0133976890','C How to Program',8,'2016'),
('0133406954','Visual Basic 2012 How to Program',6,'2014'),
('0134601548','Visual C# How to Program',6,'2017'),
('0136151574','Visual C++ How to Program',2,'2008'),
('0134448235','C++ How to Program',10,'2017'),
('0134444302','Android How to Program',3,'2017'),
('0134289366','Android 6 for Programmers',3,'2016');
INSERT INTO author_ISBN (id,isbn)
VALUES
(1,'0134289366'),
(2,'0134289366'),
(5,'0134289366'),
(1,'0135404673'),
(2,'0135404673'),
(1,'0132151006'),
(2,'0132151006'),
(3,'0132151006'),
(1,'0134743350'),
(2,'0134743350'),
(1,'0133976890'),
(2,'0133976890'),
(1,'0133406954'),
(2,'0133406954'),
(3,'0133406954'),
(1,'0134601548'),
(2,'0134601548'),
(1,'0136151574'),
(2,'0136151574'),
(4,'0136151574'),
(1,'0134448235'),
(2,'0134448235'),
(1,'0134444302'),
(2,'0134444302'.
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