[英]View Function used to work now it does not
import sqlite3
def create_table():
connection = sqlite3.connect('lite.db')
cursor = connection.cursor()
cursor.execute('CREATE TABLE IF NOT EXISTS shop (item TEXT, quantity INTEGER, price REAL)') #you write the SQL code in between brackets
connection.commit()
connection.close()
create_table()
def insert(item,quantity,price):
connection = sqlite3.connect('lite.db')
cursor = connection.cursor()
cursor.execute("INSERT INTO shop VALUES (?,?,?)", (item,quantity,price)) # inserting data
connection.commit()
connection.close()
insert('Wine Glass', 10, 5)
insert('Coffe Cup', 5, 2)
insert('Plate', 20, 10)
def view():
connection = sqlite3.connect('lite.db')
cursor = connection.cursor()
cursor.execute('SELECT ALL FROM shop ')
rows = cursor.fetchall()
connection.close()
return rows
def delete_item(item):
connection = sqlite3.connect('lite.db')
cursor = connection.cursor()
cursor.execute("DELETE * FROM shop WHERE item = ?", (item,)) # inserting data
connection.commit()
connection.close()
print(view())
delete_item('Wine Glass')
print(view())
错误信息:
cursor.execute('SELECT ALL FROM shop ')
sqlite3.OperationalError: near "FROM": syntax error
它曾经有效,然后我添加了删除 function,现在它给了我这个语法错误,我什至没有对该 function 进行任何更改。该代码基于 Udemy 教程,并且对视频应用了相同的更改我收到此错误消息,但导师没有。 正如您所猜到的,我对这些东西很陌生,我无法破译错误消息,或者至少如果它的含义不那么明显的话。 所以是的,提前谢谢
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