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my_first_sqllite.py
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my_first_sqllite.py
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import sqlite3
conn = sqlite3.connect("lite.db") # Connect to database
cur = conn.cursor() # create a cursor object
cur.execute("DROP TABLE IF EXISTS store")
def create():
conn = sqlite3.connect("lite.db") # Connect to database
cur = conn.cursor() # create a cursor object
cur.execute("CREATE TABLE IF NOT EXISTS store(item TEXT, quantity INT, price REAL)")
conn.commit()
conn.close()
def insert(item, quantity, price):
#global conn, cur
conn = sqlite3.connect("lite.db") # Connect to database
cur = conn.cursor() # create a cursor object
cur.execute("INSERT into store VALUES(?,?,?)", (str(item),int(quantity), float(price)))
conn.commit()
conn.close()
def select():
conn = sqlite3.connect("lite.db") # Connect to database
cur = conn.cursor() # create a cursor object
query =cur.execute("SELECT * FROM store")
results= query.fetchall()
conn.close()
return results
def delete(item):
conn = sqlite3.connect("lite.db") # Connect to database
cur = conn.cursor() # create a cursor object
cur.execute("DELETE FROM store WHERE item =?",(item,))
conn.commit()
conn.close()
#delete('glass')
def update(item, quantity, price):
conn = sqlite3.connect("lite.db") # Connect to database
cur = conn.cursor() # create a cursor object
cur.execute("UPDATE store SET quantity = ?, price = ? WHERE item =?",(quantity, price,item))
conn.commit()
conn.close()
create()
insert('glass',6,90.6)
insert('book',9,56.9)
update('glass',30, 34.89)
a= select()
print(a)
#UPDATE store set quantity= ? ,"
# " price =? WHERE item = ?", (item, quantity,price)