; testing trading systems. Are you planning to also build a trading system?
>
> Regards,
> Miro
>
>
> On Wed, Oct 9, 2013 at 10:28 AM, Alexey Uimanov wrote:
>
>> I did not find such a library, but I am interested in Haskell trading
>> automation too.
>>
>> BT
I did not find such a library, but I am interested in Haskell trading
automation too.
BTW, I am developing package for testing trading systems, it can just
download historical data from some free russian stock services for now.
https://github.com/s9gf4ult/hadan
If you interested we could join fo
Maybe this is needed new typeclass ApplicativeTrans?
2013/10/1 Michael Snoyman
> I'm wondering if anyone's run into this problem before, and if there's a
> common solution.
>
> In Yesod, we have applicative forms (based originally on formlets). These
> forms are instances of Applicative, but no
Hello, haskellers!
I am glad to announce new tested version of HDBI-1.1.1 (Haskell Database
Independent interface). Now it becomes much more databae-independent than
before because of SQlite3 driver in addition to PostrgreSQL driver.
What changed from version 1.0.0:
1. removed `affectedRows` fro
Hello, Haskellers.
I am working on HDBI and I faced with the problem.
There is an error when I close SQlite database, "unable to close due to
unfinalized statements or unfinished backups".
This problems occurs when there is some not finalized statements related to
this database.
So, I must prote
uestion marks inside the doublequoted identifiers, quoted
literals and even dollar quoted literals 4.1.2.2. Dollar-Quoted String
Constants<http://www.postgresql.org/docs/8.2/static/sql-syntax-lexical.html>
2013/7/31 Tom Ellis
> On Wed, Jul 31, 2013 at 09:45:50AM +0600, Alexey Uimanov
>
> Regard parameterized SQL: It might be worth using named parameters (e.g.
> ":foo" and ":bar" or something like that) rather than "?" as
> placeholders in SQL/prepared SQL. This will make it slightly more
> flexible if you need to provide different SQL strings for different
> databases, but want
Hello, haskellers. This is the first release of HDBI (Haskell Database
Independent interface). It is the fork of HDBC.
HDBI has some improvements in design, it also has better testing and
performance (mainly because of using Text instead of String anywhere).
HDBI designed to be more flexible and co
Hello, haskellers.
I has made some rework of HDBC,
if you are interested follow the link
http://s9gf4ult.github.io/hdbc/Database-HDBC.html
So, why did I made this ? Because I did not found good enough (inside and
outside) common interface
for database connectivity. What I mean is flexible and sim
Hello. I am trying to write some thing in haskell and i need fast
storage to store and select this things from storage.
https://github.com/s9gf4ult/projs/tree/master/haskell/teststorage
I am writing simple testing package to determine my needs and select
the fastest storage and i have encountered
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