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Sql 命令不起作用的地方_Sql_Influxdb - Fatal编程技术网
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Sql 命令不起作用的地方

sql influxdb

Sql 命令不起作用的地方,sql,influxdb,Sql,Influxdb,在使用Influxql时，当我尝试以下命令时 select "P_askbid_midprice1" from "/HFT/Data_HFT/OrderBook/DCIX_OB" limit 50 我得到了以下结果 name: /HFT/Data_HFT/OrderBook/DCIX_OB time P_askbid_midprice1 ---- ------------------ 2015-05-30T00:00:00Z 0

在使用Influxql时，当我尝试以下命令时

select "P_askbid_midprice1" from "/HFT/Data_HFT/OrderBook/DCIX_OB" limit 50
我得到了以下结果

name: /HFT/Data_HFT/OrderBook/DCIX_OB
time                 P_askbid_midprice1
----                 ------------------
2015-05-30T00:00:00Z 0
2015-05-30T00:00:01Z 0
2015-05-30T00:00:02Z 0
2015-05-30T00:00:03Z 0
2015-05-30T00:00:04Z 0
2015-05-30T00:00:05Z 0
2015-05-30T00:00:06Z 0
2015-05-30T00:00:07Z 0
2015-05-30T00:00:08Z 0
2015-05-30T00:00:09Z 0
2015-05-30T00:00:10Z 0
2015-05-30T00:00:11Z 0
2015-05-30T00:00:12Z 0
2015-05-30T00:00:13Z 0
2015-05-30T00:00:14Z 0
2015-05-30T00:00:15Z 0
2015-05-30T00:00:16Z 0
2015-05-30T00:00:17Z 0
2015-05-30T00:00:18Z 0
2015-05-30T00:00:19Z 0
2015-05-30T00:00:20Z 0
2015-05-30T00:00:21Z 0
2015-05-30T00:00:22Z 0
2015-05-30T00:00:23Z 0
2015-05-30T00:00:24Z 0
2015-05-30T00:00:25Z 0
2015-05-30T00:00:26Z 0
2015-05-30T00:00:27Z 0
2015-05-30T00:00:28Z 0
2015-05-30T00:00:29Z 0
2015-05-30T00:00:30Z 0
2015-05-30T00:00:31Z 0
2015-05-30T00:00:32Z 0
2015-05-30T00:00:33Z 0
2015-05-30T00:00:34Z 0
2015-05-30T00:00:35Z 0
2015-05-30T00:00:36Z 0
2015-05-30T00:00:37Z 0
2015-05-30T00:00:38Z 0
2015-05-30T00:00:39Z 0
2015-05-30T00:00:40Z 0
但是有了命令

select "P_askbid_midprice1" from "/HFT/Data_HFT/OrderBook/DCIX_OB" WHERE time > '2016-05-30' and time < '2015-05-31'

从/HFT/Data\u HFT/OrderBook/DCIX\u OB中选择“P\u askbid\u midprice1”，其中时间>2016-05-30，时间<'2015-05-31'
我没有从这个命令中得到任何东西，即使它与前一个命令非常相似

该命令有什么问题？

您需要使用
或
语句，而不是
和
语句。时间不能同时在2016年5月之后和2015年5月之前。它必须是一个或另一个


select "P_askbid_midprice1" 
from "/HFT/Data_HFT/OrderBook/DCIX_OB" 
WHERE 
    time > '2016-05-30' 
    or time < '2015-05-31'



选择“P_askbid_midprice1”
来自“/HFT/Data\u HFT/OrderBook/DCIX\u OB”
哪里
时间>'2016-05-30'
或时间<'2015-05-31'