如何将值插入到 Python 中的 SQLite3 数据库中？

Question

I have the following function which inserts two values into my database, however, no matter how many times I try, the data is just not inserted. newname and newgrade are also successfully fetched in this function, just not passed to the database.

def addtolist():
    with sqlite3.connect("TestScore.db") as db:
            cursor = db.cursor()
    newname = sname.get()
    newgrade = sgrade.get()
    cursor.execute("""INSERT INTO Scores(name,score) VALUES (?,?)""", (newname, newgrade))
    db.commit
    sname.delete(0, END)
    sgrade.delete(0, END)
    sname.focus()

And I created the database like following

cursor.execute(""" CREATE TABLE IF NOT EXISTS Scores (id integer PRIMARY KEY, name text, score integer); """)

Answer 1

You need to indent all your code to be inside the with block, and call the commit() function with parenthesis. Also, you should probably close the cursor once you're done inserting values.

Try the code below to see if it works:

def addtolist():
    with sqlite3.connect("TestScore.db") as db:
            cursor = db.cursor()
        newname = sname.get()
        newgrade = sgrade.get()
        cursor.execute("""INSERT INTO Scores(name,score) VALUES (?,?)""", (newname, newgrade))
        db.commit()
        sname.delete(0, END)
        sgrade.delete(0, END)
        sname.focus()
        cursor.close()