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POConnecting to Oracle Database in Haskell using HDBC
 

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    <p>I was trying to work with Oracle Database from Haskell and have faced with such problem. So, there is this code. module Main where</p> <pre class="lang-hs prettyprint-override"><code>import Database.HDBC import Database.HDBC.ODBC main :: IO () main = do let connectionString = "Driver={Microsoft ODBC for Oracle};Server=127.0.0.1;Uid=valera;Pwd=2562525;" let ioconn = connectODBC connectionString conn &lt;- ioconn vals &lt;- quickQuery conn "SELECT * FROM PERSONS_TEST" [] print vals return () </code></pre> <p>Pretty simple, huh? But that won't work. With this connection string the error is</p> <pre class="lang-hs prettyprint-override"><code>*** Exception: SqlError {seState = "[\"HY090\"]", seNativeError = -1, seErrorMsg = "sqlGetInfo SQL_TXN_CAPABLE: [\"0: [Microsoft][ODBC driver for Oracle]\\65533... </code></pre> <p>and then 65333 repeats many times. And with this</p> <pre class="lang-hs prettyprint-override"><code>Provider=msdaora;Data Source=127.0.0.1;User Id=valera;Password=2562525; </code></pre> <p>the error is </p> <pre class="lang-hs prettyprint-override"><code>*** Exception: SqlError {seState = "[\"IM002\"]", seNativeError = -1, seErrorMsg = "connectODBC/sqlDriverConnect: [\"0: [Microsoft][\\65533... </code></pre> <p>and 65333 repeats again till the end I suppose, that the problem is in connection string, but I had tried a whole bunch of them (I've used <a href="http://www.connectionstrings.com/" rel="nofollow">http://www.connectionstrings.com/</a>)</p> <p>I'm using Haskell Platform 2011.4.0.0, GHC 7.0.4, Oracle Database XE 11.2 on Windows 7 64-bit. Microsoft MDAC SDK installed.</p>
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    1. USJ Cooper
    1. USSpo1ler
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    1. CODid you create an odbc connection using Odbc tool in Administrative Tools?
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    2. COOh, I didn't. Maybe I don't fully understand the concept of ODBC. I will try.
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      1. USSpo1ler
 

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