9th day of python challenges 139-142
This commit is contained in:
abd.shallal
@@ -1,12 +1,54 @@
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import sqlite3
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from sqlite3 import Error
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with sqlite3.connect('python-by-example') as db:
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cursor = db.cursor()
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cursor.execute("""CREATE TABLE IF NOT EXISTS employees(
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id integer PRIMARY KEY,
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name text NOT NULL,
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dept text NOT NULL,
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salary integer);""")
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cursor.execute("""INSERT INTO employees(id,name,dept,salary)
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VALUES("1","Bob","Sales","25000")""")
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db.commit()
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def create_connection(db):
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try:
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conn = sqlite3.connect(db)
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return conn
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except Error as e:
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print(e)
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return None
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def create_phone_book_table(conn):
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sql_create_projects_table = """ CREATE TABLE IF NOT EXISTS PhoneBook (
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id integer PRIMARY KEY,
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first_name text NOT NULL,
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surname text,
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phone integer
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); """
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cur = conn.cursor()
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cur.execute(sql_create_projects_table)
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cur.close()
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def create_phone_book_record(conn, phone_book):
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sql = ''' INSERT INTO PhoneBook(first_name,surname,phone)
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VALUES(?,?,?) '''
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cur = conn.cursor()
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cur.execute(sql, phone_book)
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cur.close()
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return cur.lastrowid
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def main():
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conn = create_connection('python-by-example.db')
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with conn:
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create_phone_book_table(conn)
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phone_book_record_1 = ('Simon', 'Howels', '01223349752')
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phone_book_record_2 = ('Karen', 'Philips', '01954295773')
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phone_book_record_3 = ('Darren', 'Smith', '01583749012')
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phone_book_record_4 = ('Anne', 'Jones', '01323567322')
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phone_book_record_5 = ('Mark', 'Smith', '01223855534')
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create_phone_book_record(conn, phone_book_record_1)
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create_phone_book_record(conn, phone_book_record_2)
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create_phone_book_record(conn, phone_book_record_3)
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create_phone_book_record(conn, phone_book_record_4)
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create_phone_book_record(conn, phone_book_record_5)
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main()
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84
challenges139-145/challenge-140.py
Normal file
84
challenges139-145/challenge-140.py
Normal file
@@ -0,0 +1,84 @@
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import sqlite3
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from sqlite3 import Error
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def create_connection(db):
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try:
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conn = sqlite3.connect(db)
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return conn
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except Error as e:
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print(e)
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return None
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def show_all(conn):
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cur = conn.cursor()
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cur.execute("SELECT * FROM PhoneBook")
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rows = cur.fetchall()
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for row in rows:
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print(row)
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def view_phone_book(conn, phone_id):
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cur = conn.cursor()
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cur.execute(str("SELECT * FROM PhoneBook WHERE id = " + str(phone_id)))
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print(cur.fetchone())
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cur.close()
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def add_phone_book(conn, phone_book):
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sql = ''' INSERT INTO PhoneBook(first_name,surname,phone)
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VALUES(?,?,?) '''
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cur = conn.cursor()
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cur.execute(sql, phone_book)
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print(cur.fetchone())
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cur.close()
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def surname_in_phone_book(conn, surname):
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sql = "SELECT * FROM PhoneBook WHERE surname like '%" + surname + "%'"
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cur = conn.cursor()
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cur.execute(sql)
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rows = cur.fetchall()
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for row in rows:
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print(row)
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def delete_phone_book(conn, phone_id):
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cur = conn.cursor()
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cur.execute(str("DELETE FROM tasks WHERE id = " + str(phone_id)))
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cur.close()
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def main():
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conn = create_connection('python-by-example.db')
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with conn:
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print('\n\nMain Menu\n\n\n')
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print('1) View phone book ')
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print('2) Add to phone book')
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print('3) Search for surname')
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print('4) Delete person from phone book')
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print('5) Quit')
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operation_ask = int(input('Enter your selection : '))
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if operation_ask == 1:
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ask_id = int(input('Enter id to show : '))
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view_phone_book(conn, ask_id)
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elif operation_ask == 2:
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ask_name = str(input('Enter name : '))
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ask_surname = str(input('Enter surname : '))
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ask_phone = str(input('Enter phone : '))
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phone_book = (ask_name, ask_surname, ask_phone)
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add_phone_book(conn, phone_book)
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elif operation_ask == 3:
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ask_surname = str(input('Enter surname to show : '))
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surname_in_phone_book(conn, ask_surname)
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elif operation_ask == 4:
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ask_id = int(input('Enter id to delete : '))
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delete_phone_book(conn, ask_id)
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else:
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print('Invalid input, please try again.')
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main()
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92
challenges139-145/challenge-141.py
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92
challenges139-145/challenge-141.py
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@@ -0,0 +1,92 @@
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import sqlite3
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from sqlite3 import Error
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def create_connection(db):
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try:
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conn = sqlite3.connect(db)
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return conn
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except Error as e:
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print(e)
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return None
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def create_author_table(conn):
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try:
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sql_create_projects_table = """ CREATE TABLE IF NOT EXISTS authors (
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name text PRIMARY KEY,
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birth_place text
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); """
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cur = conn.cursor()
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cur.execute(sql_create_projects_table)
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cur.close()
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except Error as e:
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print(e)
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def create_books_table(conn):
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sql_create_projects_table = """ CREATE TABLE IF NOT EXISTS books (
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id integer PRIMARY KEY,
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title text NOT NULL,
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author text,
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published_date text
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); """
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cur = conn.cursor()
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cur.execute(sql_create_projects_table)
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cur.close()
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def insert_to_authors(conn, authors):
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cur = conn.cursor()
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for author in authors:
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sql = 'INSERT INTO authors (name, birth_place) VALUES (?, ?)'
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cur.execute(sql, author)
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conn.commit()
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cur.close()
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def insert_to_books(conn, books):
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cur = conn.cursor()
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for book in books:
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sql = 'INSERT INTO books (title, author, published_date) VALUES (?, ?, ?)'
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cur.execute(sql, book)
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print(cur.fetchone())
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cur.close()
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def main():
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conn = create_connection('BookInfo.db')
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with conn:
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create_author_table(conn)
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create_books_table(conn)
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authors = [
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['Agatha Christie', 'Torquay'],
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['Cecelia Ahern', 'Dublin'],
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['J.K, Rowling', 'Bristol'],
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['Oscar Wilde', 'Dublin']
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]
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insert_to_authors(conn, authors)
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books = [
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['De Profundis', 'Oscar Wilde', '1905'],
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['Harry Potter and the chamber of secrets', 'J.K. Rowling', '1998'],
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['Harry Potter and the prisoner or Azkaban', 'J.K. Rowling', '1999'],
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['Lyrebird', 'Cecelia Ahren', '2017'],
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['Murder At the Orient Express', 'Agatha Christie', '1934'],
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['Perfect', 'Cecelia Ahren', '2017'],
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['The marble collector', 'Cecelia Ahren', '2016'],
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['The murder on the links', 'Agatha Christie', '1923'],
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['The picture of Dorian Gray', 'Oscar Wilde', '1890'],
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['The secret adversary', 'Agatha Christie', '1921'],
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['The seven dials mystery', 'Agatha Christie', '1929'],
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['The year i met you', 'Cecelia Ahren', '2014']
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]
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insert_to_books(conn, books)
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main()
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50
challenges139-145/challenge-142.py
Normal file
50
challenges139-145/challenge-142.py
Normal file
@@ -0,0 +1,50 @@
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import sqlite3
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from sqlite3 import Error
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def create_connection(db):
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try:
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conn = sqlite3.connect(db)
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return conn
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except Error as e:
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print(e)
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return None
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def show_all_authors(conn):
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cur = conn.cursor()
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cur.execute("SELECT * FROM authors")
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rows = cur.fetchall()
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for row in rows:
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print(row)
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def search_place_birth(conn, place):
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cur = conn.cursor()
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cur.execute(str("select books.title, books.published_date, authors.name from authors join books on books.author = authors.name where authors.birth_place = '" + place + "'"))
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rows = cur.fetchall()
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for row in rows:
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print(row)
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cur.close()
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def main():
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conn = create_connection('BookInfo.db')
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with conn:
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print('\n\nMain Menu\n\n\n')
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print('1) List authors ')
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print('2) Search place of birth')
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print('3) Quit')
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operation_ask = int(input('Enter your selection : '))
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if operation_ask == 1:
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show_all_authors(conn)
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elif operation_ask == 2:
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ask_place = str(input('Enter place of birth : '))
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search_place_birth(conn, ask_place)
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else:
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print('Invalid input, please try again.')
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main()
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192
challenges139-145/sqlite-python-tutorial.py
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192
challenges139-145/sqlite-python-tutorial.py
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@@ -0,0 +1,192 @@
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import sqlite3
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from sqlite3 import Error
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""""""""""""""""""" CREATING SQLITE DATABASE """""""""""""""""""""
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def create_connection(db_file):
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""" create a database connection to the SQLite database
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specified by db_file
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:param db_file: database file
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:return: Connection object or None
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"""
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try:
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conn = sqlite3.connect(db_file)
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return conn
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except Error as e:
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print(e)
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# finally:
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# conn.close()
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return None
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# if __name__ == '__main__':
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# create_connection('python-by-example.db')
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"""""""""""""""" CREATE TABLE """""""""""""""
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def create_table(conn, create_table_sql):
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""" create a table from the create_table_sql statement
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:param conn: Connection object
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:param create_table_sql: a CREATE TABLE statement
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:return:
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"""
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try:
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c = conn.cursor()
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c.execute(create_table_sql)
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c.close()
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except Error as e:
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print(e)
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def create_project(conn, project):
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"""
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Create a new project into the projects table
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:param conn:
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:param project:
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:return: project id
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"""
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sql = ''' INSERT INTO projects(name,begin_date,end_date)
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VALUES(?,?,?) '''
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cur = conn.cursor()
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cur.execute(sql, project)
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cur.close()
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return cur.lastrowid
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def create_task(conn, task):
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"""
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Create a new task
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:param conn:
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:param task:
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:return:
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"""
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sql = ''' INSERT INTO tasks(name,priority,status_id,project_id,begin_date,end_date)
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VALUES(?,?,?,?,?,?) '''
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cur = conn.cursor()
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cur.execute(sql, task)
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cur.close()
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return cur.lastrowid
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def select_all_tasks(conn):
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"""
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Query all rows in the tasks table
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:param conn: the Connection object
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:return:
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"""
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cur = conn.cursor()
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cur.execute("SELECT * FROM tasks")
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rows = cur.fetchall()
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for row in rows:
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print(row)
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def select_task_by_priority(conn, priority):
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"""
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Query tasks by priority
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:param conn: the Connection object
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:param priority:
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:return:
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"""
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cur = conn.cursor()
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cur.execute("SELECT * FROM tasks WHERE priority=?", (priority,))
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rows = cur.fetchall()
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for row in rows:
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print(row)
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def update_task(conn, task):
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"""
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update priority, begin_date, and end date of a task
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:param conn:
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:param task:
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:return: project id
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"""
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sql = ''' UPDATE tasks
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SET priority = ? ,
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begin_date = ? ,
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end_date = ?
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WHERE id = ?'''
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cur = conn.cursor()
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cur.execute(sql, task)
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cur.close()
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def delete_task(conn, task):
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"""
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delete a task
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:param conn:
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:param task:
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:return: null
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"""
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cur = conn.cursor()
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cur.execute(str("DELETE FROM tasks WHERE id = " + str(task)))
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cur.close()
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def main():
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database = 'python-by-example.db'
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# sql_create_projects_table = """ CREATE TABLE IF NOT EXISTS projects (
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# id integer PRIMARY KEY,
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# name text NOT NULL,
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# begin_date text,
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# end_date text
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# ); """
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#
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# sql_create_tasks_table = """CREATE TABLE IF NOT EXISTS tasks (
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# id integer PRIMARY KEY,
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# name text NOT NULL,
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# priority integer,
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# status_id integer NOT NULL,
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# project_id integer NOT NULL,
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# begin_date text NOT NULL,
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# end_date text NOT NULL,
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# FOREIGN KEY (project_id) REFERENCES projects (id)
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# );"""
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#
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# # create a database connection
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conn = create_connection(database)
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# if conn is not None:
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# # create projects table
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# create_table(conn, sql_create_projects_table)
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# # create tasks table
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# create_table(conn, sql_create_tasks_table)
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# else:
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# print("Error! cannot create the database connection.")
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with conn:
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# # create a new project
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# project = ('Cool App with SQLite & Python', '2015-01-01', '2015-01-30');
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# project_id = create_project(conn, project)
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#
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# # tasks
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# task_1 = ('Analyze the requirements of the app', 1, 1, project_id, '2015-01-01', '2015-01-02')
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task_2 = ('Confirm with user about the top requirements', 1, 1, 1, '2015-01-03', '2015-01-05')
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#
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# # create tasks
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# create_task(conn, task_1)
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create_task(conn, task_2)
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# update_task(conn, (2, '2015-01-04', '2015-01-06',2))
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# delete_task(conn, 2)
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# print("1. Query task by priority:")
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# select_task_by_priority(conn, 1)
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#
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# print("2. Query all tasks")
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# select_all_tasks(conn)
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if __name__ == '__main__':
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main()
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