Question

所以我试图在我的sql server数据库上运行这个查询：

from multiprocessing import Process
import os
import time

def sleeper(name, seconds):
    print "Sub Process %s ID# %s" % (name, os.getpid())
    print "Parent Process ID# %s" % (os.getppid())
    print "%s will sleep for %s seconds" % (name, seconds)
    time.sleep(seconds)

if __name__ == "__main__":
    child_proc = Process(target=sleeper, args=('bob', 5)) 
    child_proc.start()
    time.sleep(2)
    child_proc.terminate()
    #child_proc.join()
    #time.sleep(2)
    #print "in parent process after child process join"
    #print "the parent's parent process: %s" % (os.getppid())

我收到此错误消息：“Msg 102，Level 15，State 1，Line 5''''附近的语法不正确。”

我已经确认此查询本身可以正常工作：

SELECT MAX(timestamp)
FROM (SELECT TOP (20) timestamp
    FROM CPPM_03ChannelCountErrors 
    WHERE '2015-03-10 00:00:00' < timestamp AND timestamp < '2015-03-15 00:00:00' AND skuid = '3252' 
    ORDER BY timestamp)

如果有人知道这一点我很感激。这让我疯了

Answer 1

outerHTML

每个子查询都需要一个别名。我添加了它，并将其命名为SELECT MAX(timestamp) FROM ( SELECT TOP (20) timestamp FROM CPPM_03ChannelCountErrors WHERE '2015-03-10 00:00:00' < timestamp AND timestamp < '2015-03-15 00:00:00' AND skuid = '3252' ORDER BY timestamp ) tmp

Answer 2

SELECT MAX(timestamp)
FROM (SELECT TOP (20) timestamp
    FROM CPPM_03ChannelCountErrors 
    WHERE '2015-03-10 00:00:00' < timestamp 
      AND timestamp < '2015-03-15 00:00:00' AND skuid = '3252' 
    ORDER BY timestamp) t --<-- you need to alias the sub-query here

FROM（other_query）后的SQL语法错误

2 个答案: