这是我下面的代码，我尝试将数据从一个数据库加载到另一个数据库。我相信一切正常，但发生错误，我不知道这意味着什么。
import pymssql, psycopg2
class Datenbankabfrage:
def __init__(self):
self.conn1 = pymssql.connect(host='***', user='***', password='***', database='****')
self.conn2 = psycopg2.connect("dbname='****' user='****' host='****' password='****'")
self.cur1 = self.conn1.cursor()
self.cur2 = self.conn2.cursor()
def abfrage(self):
self.cur1.execute("SELECT tag, site, plant, unit, line, ProcessID AS pid, Count(ReadTime) AS mods \
FROM ( \
select dateadd(dd, -1, convert(varchar, getDate(),111)) \
as tag, ReadTime, processID, subid, PR.Site, PR.Plant, PR.Unit, PR.Line \
from FactBarcodeReading BCR with(nolock) \
inner join DimProcess PR on BCR.ProcessKey = PR.ProcessKey \
where PR.ProcessID IN (802, 1190, 1800, 3090, 3590, 4390, 4590, 4800, 5000, 5400, 4190) \
and ReadTime between dateadd(dd, -1, convert(varchar, getDate(),111)) \
and dateadd(dd, -0, convert(varchar, getDate(),111)) \
) a \
GROUP BY tag, site, plant, unit, line, ProcessID \
ORDER BY site, plant, unit, line, ProcessID")
self.rows = self.cur1.fetchall()
query = ("INSERT INTO '20091229global' (proddate, site, plant, unit, line, pid, mods) VALUES (?, ?, ?, ?, ?, ?, ?)", self.rows)
self.cur2.executemany(query)
self.conn2.commit()
self.conn2.close()
a = Datenbankabfrage()
a.abfrage()
这是错误:
Traceback (most recent call last):
File "C:\Documents and Settings\FS107319\My Documents\Python\mssql_abfrage.py", line 39, in <module>
a.abfrage()
File "C:\Documents and Settings\FS107319\My Documents\Python\mssql_abfrage.py", line 30, in abfrage
self.cur2.executemany(query)
TypeError: Required argument 'vars_list' (pos 2) not found
-------------------------------------------------- ---------------
好的，这是我的编辑:
现在，这是我的新代码
query("INSERT INTO '20091229global' (proddate, site, plant, unit, line, pid, mods) VALUES ('?', '?', '?', '?', '?', '?', '?')")
self.cur2.execute(query, self.rows)
抱歉，之前发生的错误是错误的，因为我忘记了查询后面的“=”
这才是真正的错误
Traceback (most recent call last):
File "C:\Documents and Settings\FS107319\My Documents\Python\mssql_abfrage.py", line 39, in <module>
a.abfrage()
File "C:\Documents and Settings\FS107319\My Documents\Python\mssql_abfrage.py", line 30, in abfrage
self.cur2.execute(query, self.rows)
ProgrammingError: FEHLER: Syntaxfehler bei »'20091229global'«
LINE 1: INSERT INTO '20091229global' (proddate, site, plant, unit, l...
最佳答案
根据 the documentation ， executemany() 有两个参数。您只提供了一个 ( query )。
也许你只是想要 execute() ？
或者，更有可能:
query = "INSERT INTO '20091229global' (proddate, site, plant, unit, line, pid, mods) VALUES (?, ?, ?, ?, ?, ?, ?)"
self.cur2.executemany(query, self.rows)
关于python - 如何解决 Python TypeError？，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/6278531/