It is simply a key/value store built on top of SQLite.
Would you be able to share any example code about accessing Bloomberg Data 
Terminal and ICE?

Massimo

On Wednesday, 9 April 2014 16:15:36 UTC-5, Trent Telfer wrote:
>
> I am actually pulling the data from a Bloomberg Data Terminal, Bank of 
> Canada, ICE and NGX. All have various ways to access the data. Some 
> providers have fairly nice API's (bloomberg) and others like NGX only 
> provide Excel files.
>
> I'm interested in this persistent dictionary concept and am curious if it 
> at the least can be adapted to be used with the Bloomberg terminal data.
>
> -Trent
>
> On Wednesday, April 9, 2014 3:08:28 PM UTC-6, Massimo Di Pierro wrote:
>>
>> Are you getting from Yahoo finance?
>> Look into github.com/mdipierro/nlib
>>
>> from nlib import *
>> symbol = 'AAPL'
>> d = PersistentDictionary()
>> if symbol in d:
>>    h = d[symbol]
>> else
>>    h = d[symbol] = YStock(symbol).historical()
>> print d[0].adjusted_close
>>
>> PersistentDictionary() is like shelve but uses sqlite and therefore is 
>> thread safe.
>>
>>
>>
>>
>> On Wednesday, 9 April 2014 10:29:14 UTC-5, Trent Telfer wrote:
>>>
>>> Brian M,
>>>
>>> Thanks for the reply. I am looking into doing the following with 
>>> historical market information
>>>
>>> a) Base Table
>>>
>>> ID,Exchange,Description,Base Currency
>>> Char(30),Char(10),Varchar(256),Char(5)
>>>
>>> b) Market Data
>>>
>>> ID,Date,HighPrice,LowPrice,OpenPrice,ClosePrice,Volume
>>> Char(30),Date,Float,Float,Float,Float,Long
>>>
>>> I am unsure if that table setup is the best choice or if there is a 
>>> better way to approach it?
>>>
>>> I've also been wondering if I should jump into the world of NoSQL 
>>> (specifically cassandra) as I may need to have smaller pricing intervals 
>>> than days in the future.
>>>
>>> -Trent
>>>
>>>
>>> On Tuesday, April 8, 2014 6:48:50 PM UTC-6, Brian M wrote:
>>>>
>>>> Assuming each source needs the same data fields, how about just using 
>>>> one table and including an extra field to specify which source each record 
>>>> came from?
>>>> Or if you really want a separate table for each timeseries, you could 
>>>> look into using table inheritance. 
>>>> http://web2py.com/books/default/chapter/29/06/the-database-abstraction-layer#Table-inheritance
>>>>
>>>> A little more about how you are planning to use or display the data 
>>>> might help. 38 separate tables, one table with 38 columns or rows? As a 
>>>> graph with each series being a line?
>>>>
>>>> ~Brian
>>>>
>>>>

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