"Lloyd Dupont" wrote:

> I'm trying to create a SqlServer express database file on the fly in a web
> application..
> (mhh.... maybe I should try to get something running in a desktop
> application first?)
>
> Anyway I want to connect to a database file and, if it doesn't exist, create
> the DB on the fly.
>
> Actuall I'm trying to create the connection like that:
> I'm trying to create a connection like that:
> ===
> public static SqlConnection GetConnection(string filename)
> {
>     string connString = @"Data
> Source=.\SQLEXPRESS;AttachDbFileName=|DataDirectory|{0}.mdf;Integrated
> Security=True;User Instance=True";
>     connString = string.Format(connString, filename);
>     SqlConnection sqlc = new SqlConnection(filename); // <= exception here
>     return sqlc;
> }
> ===
> It fails with "Format of the initialization string does not conform to
> specification starting at index 0."
>
> mmh..
> is it because the file doesn't exists?
> How am I to connect to SqlServer to run the SqlSever creation script if my
> file doesn't exist?
>
> Should I embed an empty database as a resource in my control library if I
> want to automatically create the database?
> Or is there an other way? (I have the creation Sql script ready, I just
> wonder how to run it)....
>
>
>

"Cowboy (Gregory A. Beamer) - MVP" <NoSpamMgbworld@comcast.netNoSpamM> wrote
in message news:97A1D517-B0EB-4A46-ADBD-E801FA674768@microsoft.com...
> You cannot attach something that does not exist. You can create it,
> however.
> Something like:
>
> CREATE DATABASE [MyDB] ON  PRIMARY
> ( NAME = N'MyDB', FILENAME = N'C:\Program Files\Microsoft SQL
> Server\MSSQL.1\MSSQL\DATA\MyDB.mdf' , SIZE = 2048KB , FILEGROWTH =
> 1024KB )
> LOG ON
> ( NAME = N'MyDB_log', FILENAME = N'C:\Program Files\Microsoft SQL
> Server\MSSQL.1\MSSQL\DATA\MyDB_log.ldf' , SIZE = 1024KB , FILEGROWTH =
> 10%)
> GO
>
> blah! blah! blah!
>
> I would create a DB creator class to create the string to fire it off. I
> would also consider setting all of the properties necessary, ala:
>
> ALTER DATABASE [MyDB] SET ANSI_NULL_DEFAULT OFF
> GO
> ALTER DATABASE [MyDB] SET ANSI_NULLS OFF
> GO
> ALTER DATABASE [MyDB] SET ANSI_PADDING OFF
> GO
> ALTER DATABASE [MyDB] SET ANSI_WARNINGS OFF
> GO
> ALTER DATABASE [MyDB] SET ARITHABORT OFF
> GO
> ALTER DATABASE [MyDB] SET AUTO_CLOSE OFF
> GO
> ALTER DATABASE [MyDB] SET AUTO_CREATE_STATISTICS ON
> GO
> ALTER DATABASE [MyDB] SET AUTO_SHRINK OFF
> GO
> ALTER DATABASE [MyDB] SET AUTO_UPDATE_STATISTICS ON
> GO
> ALTER DATABASE [MyDB] SET CURSOR_CLOSE_ON_COMMIT OFF
> GO
> ALTER DATABASE [MyDB] SET CURSOR_DEFAULT  GLOBAL
> GO
> ALTER DATABASE [MyDB] SET CONCAT_NULL_YIELDS_NULL OFF
> GO
> ALTER DATABASE [MyDB] SET NUMERIC_ROUNDABORT OFF
> GO
> ALTER DATABASE [MyDB] SET QUOTED_IDENTIFIER OFF
> GO
> ALTER DATABASE [MyDB] SET RECURSIVE_TRIGGERS OFF
> GO
> ALTER DATABASE [MyDB] SET AUTO_UPDATE_STATISTICS_ASYNC OFF
> GO
> ALTER DATABASE [MyDB] SET DATE_CORRELATION_OPTIMIZATION OFF
> GO
> ALTER DATABASE [MyDB] SET PARAMETERIZATION SIMPLE
> GO
> ALTER DATABASE [MyDB] SET  READ_WRITE
> GO
> ALTER DATABASE [MyDB] SET RECOVERY FULL
> GO
> ALTER DATABASE [MyDB] SET  MULTI_USER
> GO
> ALTER DATABASE [MyDB] SET PAGE_VERIFY CHECKSUM
> GO
>
> etc.
>
> After this, you can create a connection string to this new database. Oh,
> one
> more thing - this is against master.
>
> --
> Gregory A. Beamer
> MVP; MCP: +I, SE, SD, DBA
>
> ***************************
> Think Outside the Box!
> ***************************
>
>
> "Lloyd Dupont" wrote:
>
>> I'm trying to create a SqlServer express database file on the fly in a
>> web
>> application..
>> (mhh.... maybe I should try to get something running in a desktop
>> application first?)
>>
>> Anyway I want to connect to a database file and, if it doesn't exist,
>> create
>> the DB on the fly.
>>
>> Actuall I'm trying to create the connection like that:
>> I'm trying to create a connection like that:
>> ===
>> public static SqlConnection GetConnection(string filename)
>> {
>>     string connString = @"Data
>> Source=.\SQLEXPRESS;AttachDbFileName=|DataDirectory|{0}.mdf;Integrated
>> Security=True;User Instance=True";
>>     connString = string.Format(connString, filename);
>>     SqlConnection sqlc = new SqlConnection(filename); // <= exception
>> here
>>     return sqlc;
>> }
>> ===
>> It fails with "Format of the initialization string does not conform to
>> specification starting at index 0."
>>
>> mmh..
>> is it because the file doesn't exists?
>> How am I to connect to SqlServer to run the SqlSever creation script if
>> my
>> file doesn't exist?
>>
>> Should I embed an empty database as a resource in my control library if I
>> want to automatically create the database?
>> Or is there an other way? (I have the creation Sql script ready, I just
>> wonder how to run it)....
>>
>>
>>