----- Original Message -----

From: Patrick Lynch

To: Patrick Lynch ; beginners@haskell.org

Sent: Thursday, February 03, 2011 1:01 PM

Subject: Re: [Haskell-beginners] Can't find or open a Sqlite3 database inWindows Vista

...oh dear, guess what -- I told you a lie...ghci does except either c:/users/user/test1.db or /users/user/test1.db but not the Windows folder separator of backslash '\'...please see following:

 

...this works:

    Prelude Database.HDBC Database.HDBC.Sqlite3> conn <- connectSqlite3 "c:/users/user/test1.db"
    Prelude Database.HDBC Database.HDBC.Sqlite3>

 

...so does this:

    Prelude Database.HDBC Database.HDBC.Sqlite3> conn <- connectSqlite3 "/users/user/test1.db"
    Prelude Database.HDBC Database.HDBC.Sqlite3>

 

...this doesn't work, note the back slash...also, this will only work, that is to create the database automatically and then subsquently create a table, if you user the 'users' folder...if you use 'program files, etal' you will not be able to create the database...bummer:

   Prelude Database.HDBC Database.HDBC.Sqlite3> conn <- connectSqlite3 "c:\users\user\test1.db"

   <interactive>:1:27:
       lexical error in string/character literal at character 'u'

 

---- Original Message -----

From: Patrick Lynch

To: Patrick Lynch ; beginners@haskell.org

Sent: Thursday, February 03, 2011 11:24 AM

Subject: Re: [Haskell-beginners] Can't find or open a Sqlite3 database inWindows Vista

...this seems to work:

   ghci> conn <- connectSqlite3 "/users/user/test1.db"

 

...this allows me to create a database in this directory, named test1.db, and then I can create a table in this database...

...I'm now working on writing some queries...

 

...wish me luck

----- Original Message -----

From: Patrick Lynch

To: Kathleen Lynch ; beginners@haskell.org

Sent: Thursday, February 03, 2011 10:08 AM

Subject: Re: [Haskell-beginners] Can't find or open a Sqlite3 database inWindows Vista

...could this be the problem...in Windows Vista I cannot change the file name in the directory c:\Program Files (x86)\Haskell Platform\2010.2.0.0\winghci but can change it in c:\users\user directory...

 

    ...> ren  "c:\Program Files (x86)\Haskell Platform\2010.2.0.0\winghci\test1.db" test2.db
    Access is denied.

 

...but I can see the contents of this file:

 

    ...> type test1.db
    hello, world!

 

...is it possible to specify the directory c:\users\user in ghci so that Sqlite3 will look there to open the database and then to create a table in it?

 

Good day

 

----- Original Message -----

From: Kathleen Lynch

To: beginners@haskell.org

Sent: Wednesday, February 02, 2011 5:28 PM

Subject: [Haskell-beginners] Can't find or open a Sqlite3 database in Windows Vista

...seems like I 'kicked over another bee hive'...plenty of messages in regard to this when you do google search--->[sqlite3.operational error unable to open database file in windows vista]

 

...i'm getting the following error messages when I try to create a database in Sqlite3:

 

*Sandbox> dbh <- connect "poddbtest.db"
*** Exception: SqlError {seState = "", seNativeError = 21, seErrorMsg = "prepare 6: BEGIN: unable to open database file"}

 

*Sandbox> dbh <- connect "test1.db"
*** Exception: SqlError {seState = "", seNativeError = 1, seErrorMsg = "step: SQL logic error or missing database"}

 

Both come from Chapters 21 and 22 in "Real World Haskell"

 

I can't invoke Sqlite3 from the command line using---> Sqlite3 myDatabase.db...

I created blank files in folder C:\Program Files (x86)\Haskell Platform\2010.2.0.0\winghci -- seemed to get me a bit further along...at least I was able to connect...

 

Is it possible to specify the folder that the database should be created in?

Is it possible to run Sqlite3 from the command line - when it has been installed using the Haskell wiki?

Has anyone had better success with MySql - I've used it in the past and it was very reliable?

 

Thank you

 

 

---

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