HDBC-ODBC MS SQL under Linux
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A brief description of how to get HDBC-ODBC working under linux, for connecting to MS SQL server.
Install
- Ensure your path contains the ghc bin directory:
- Ensure you have unixODBC and freetds package installed
- Download and unpack the most recent versions of hdbc and hdbc-odbc hackage.haskell.org
- Follow the README instructions for installing hdbc
- Follow the README instructions for installing hdbc-odbc
odbcinst.ini
declare a SQL Server driver, correcting the location of the .so files according to your system:
[SQL Server] Description = TDS driver MSSQL Driver = /usr/lib/libtdsodbc.so Setup = /usr/lib/libtdsS.so
Test
You can test it from a ghci prompt (obviously you'll need to change the connection string and query):
Prelude> :m Database.HDBC Prelude Database.HDBC> :m + Database.HDBC.ODBC Prelude Database.HDBC Database.HDBC.ODBC> let connectionString = "Driver={SQL Server};Port=1433;Server=myserver;Database=mydatabase;Trusted_Connection=yes;" Prelude Database.HDBC Database.HDBC.ODBC> let ioconn = connectODBC connectionString Prelude Database.HDBC Database.HDBC.ODBC> do { conn <- ioconn; vals <- quickQuery conn "SELECT getdate();" []; print vals } [[SqlLocalTime ...
If you are not using a DSN, it's critical to explicitly set the Port in the connection string