Files
004_comission/tunmnlu/task_1/Q2-src/hello_sql.py
louiscklaw 3688f9ee24 update,
2025-01-31 22:17:25 +08:00

112 lines
3.7 KiB
Python

########################### DO NOT MODIFY THIS SECTION ##########################
#################################################################################
import sqlite3
from sqlite3 import Error
import csv
#################################################################################
## Change to False to disable Sample
SHOW = True
############### SAMPLE CLASS AND SQL QUERY ###########################
######################################################################
class Sample():
def sample(self):
try:
connection = sqlite3.connect("sample")
connection.text_factory = str
except Error as e:
print("Error occurred: " + str(e))
print('\033[32m' + "Sample: " + '\033[m')
# Sample Drop table
connection.execute("DROP TABLE IF EXISTS sample;")
# Sample Create
connection.execute("CREATE TABLE sample(id integer, name text);")
# Sample Insert
connection.execute("INSERT INTO sample VALUES (?,?)",("1","test_name"))
connection.commit()
# Sample Select
cursor = connection.execute("SELECT * FROM sample;")
print(cursor.fetchall())
######################################################################
class HW2_sql():
############### DO NOT MODIFY THIS SECTION ###########################
######################################################################
def create_connection(self, path):
connection = None
try:
connection = sqlite3.connect(path)
connection.text_factory = str
except Error as e:
print("Error occurred: " + str(e))
return connection
def execute_query(self, connection, query):
cursor = connection.cursor()
try:
if query == "":
return "Query Blank"
else:
cursor.execute(query)
connection.commit()
return "Query executed successfully"
except Error as e:
return "Error occurred: " + str(e)
######################################################################
######################################################################
# GTusername [0 points]
def GTusername(self):
gt_username = "tlou31"
return gt_username
# Part a.i Create Tables [2 points]
def part_ai_1(self,connection):
############### EDIT SQL STATEMENT ###################################
part_ai_1_sql = """
CREATE TABLE IF NOT EXISTS movies (
id INTEGER ,
title TEXT,
score REAL);
"""
######################################################################
return self.execute_query(connection, part_ai_1_sql)
if __name__ == "__main__":
########################### DO NOT MODIFY THIS SECTION ##########################
#################################################################################
if SHOW == True:
sample = Sample()
sample.sample()
print('\033[32m' + "Q2 Output: " + '\033[m')
db = HW2_sql()
conn = db.create_connection("Q2")
try:
conn.execute("DROP TABLE IF EXISTS movies;")
conn.execute("DROP TABLE IF EXISTS movie_cast;")
conn.execute("DROP TABLE IF EXISTS cast_bio;")
conn.execute("DROP VIEW IF EXISTS good_collaboration;")
conn.execute("DROP TABLE IF EXISTS movie_overview;")
except:
print("Error in Table Drops")
try:
print('\033[32m' + "part ai 1: " + '\033[m' + str(db.part_ai_1(conn)))
# print('\033[32m' + "part ai 2: " + '\033[m' + str(db.part_ai_2(conn)))
except:
print("Error in Part a.i")
conn.commit()
print('helloworld')