Python/MySQL - 错误 1064，无法弄清楚

Question

我一直在尝试找出导致错误的原因。我相信它是在对数据库的最后一次查询中。我已经用评论标记了它。

这个错误在过去 30 分钟里一直让我头疼。

import MySQLdb
import time

# Create a database connection
db = MySQLdb.connect(host="******", user="******", passwd="*****", db="*****")
cur = db.cursor()

# Create a query to select all IDs
cur.execute("SELECT id FROM users")
clientArray = []

# Loop over all IDs returned from query,
# save all IDs in the clientArray
for row in cur.fetchall():
    clientID = str(row[0])
    clientArray.append(clientID)


clientIDInput = ""    
while True:
    # Check and wait for input
    clientIDInput = raw_input("")
    if clientIDInput in clientArray:
        # Check to see whether user is already signed in to the device
        cur.execute("SELECT fitnessStatus FROM users WHERE id=%s", (clientIDInput))
        data = cur.fetchone()
        if data[0] == False:
            cur.execute("UPDATE users SET fitnessStatus='1' WHERE id=%s", (clientIDInput))
            checkInTime = time.strftime('%Y-%m-%d %H:%M:%S')
            checkOutID = raw_input("")
            if checkOutID == clientIDInput:
                cur.execute("UPDATE users SET fitnessStatus='0' WHERE id=%s", (clientIDInput))
                checkOutTime = time.strftime('%Y-%m-%d %H:%M:%S')
                print checkInTime
                print checkOutTime

                ### I BELIEVE THIS IS THE CAUSE OF THE ERROR ###
                cur.execute("INSERT INTO activities (id, machinename, checkin, checkout, clientid) VALUES (NULL, Cross Trainer #5, %s, %s, %s)", (checkInTime, checkOutTime, clientIDInput))
                # Send checkInTime and checkOutTime to database

Answer 1

您的 INSERT 语句中存在语法错误。尝试将字符串“Cross Trainer #5”括在单引号中:

cur.execute("INSERT INTO activities (id, machinename, checkin, checkout, clientid) VALUES (NULL, 'Cross Trainer #5', %s, %s, %s)", (checkInTime, checkOutTime, clientIDInput))`

幸运的是，语句本身已经用双引号括起来"，因此不需要进一步更改:)

错误 1064 有点误导。它表明，amongst others ，滥用保留字。确实:CROSS is a reserved word .