Python SQL更新语法问题

您好，我正在跟踪并设法为我的程序的SQL Update with variables函数生成以下代码：

def editInfo(start, userName):
    newFavGenre = input("Enter your favourite genre")
    newFavArtist = input("Enter your favourite artist")
    ## userName is a global variable
    con = lite.connect(db)
    cur = con.cursor()
    cur.execute ("""
    UPDATE users
    SET favGenre=%s, favArtist=%s
    WHERE username=%s
""", (newFavGenre, newFavArtist, userName))
    results = cur.fetchall()
    return result
    mainmenu()

并不断体验此错误代码：

sqlite3.OperationalError: near "%": syntax error

---

你知道我哪里出了问题吗？

看来你正在看的帖子是针对MySQL的，基于你的错误，我猜想你正在使用

sqlite3

python接口

看着

应该是

cur.execute("""
    UPDATE users
    SET favGenre=?, favArtist=?
    WHERE username=?
    """, (newFavGenre, newFavArtist, userName))

您还可以使用它们的命名样式，而不是使用元组，而是使用字典

cur.execute("""
    UPDATE users
    SET favGenre=:genre, favArtist=:artist
    WHERE username=:username
""", {'genre':newFavGenre, 'artist': newFavArtist, 'username':userName})

cur.execute("""
    UPDATE users
    SET favGenre=:genre, favArtist=:artist
    WHERE username=:username
""", {'genre':newFavGenre, 'artist': newFavArtist, 'username':userName})