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我想从数据库中查询,我试图查找正确的方式来格式化SoQL字符串,但我失败了。我尝试以下方法:从苏打数据库查询使用Socrata client.get在Python
from __future__ import division, print_function
from sodapy import Socrata
import pandas as pd
import numpy as np
client = Socrata("data.cityofchicago.org", None)
df = client.get("kkgn-a2j4", query="WHERE traffic > -1")
并且收到一个错误消息说它Could not parse SoQL query "WHERE traffic > -1" at line 1 character 1
。如果我这样做,但是,它的工作原理:
from __future__ import division, print_function
from sodapy import Socrata
import pandas as pd
import numpy as np
client = Socrata("data.cityofchicago.org", None)
df = client.get("kkgn-a2j4", where="traffic > -1")
但我想知道如何得到查询参数工作,所以我可以用更复杂的查询。具体来说,我想尝试查询traffic > -1
和BETWEEN '2013-01-19T23:50:32.000' AND '2014-12-14T23:50:32.000'
。
只是出于好奇,你知道你将如何编写查询字符串获得相同的结果? – jtorca
对不起,刚注意到这个!您可以将'$ query'写为:'SELECT * WHERE traffic> -1 AND last_update BETWEEN'2013-01-19T23:50:32.000'AND'2014-12-14T23:50:32.000'' – chrismetcalf