Question

I’m writing an application that creates a SQL Server database for another program. For this I load a large SQL-script containing the CREATE DATABASE, CREATE TABLE and so on.

The first lines of the script is:

/*CREATE DATABASE*/
USE [master]
GO
CREATE DATABASE [MultiRisk5] COLLATE Latin1_General_CI_AS
GO
USE [MultiRisk5]
GO

And the C# code:

var sqlConn = new SqlConnection("myConnection");
var cmd = new SqlCommand("mySqlScript", sqlConn);
sqlConn.Open();
cmd.ExecuteNonQuery();
sqlConn.Close();

When I run the program I get an exception on the USE statement that tells me that the database MultiRisk5 doesn’t exist.

How can this be, when I just created the database? The script runs fine when executed in SQL Server Management Studio.

Answer 1

You can’t load a script in c# that has GO in it and run it.

GO is recognised the SQL Server client tools only, and as a batch separator. The database engine won’t recognise it. See these questions for more on how to do this

• Execute sql file on SQL Server using C#
• Add column to table and then update it inside transaction

Also, does the SqlConnection try to connect to MultiRisk5? if so, this will error too before USE master is run