如何使用 C# 从存储在数据库中的记录创建 SQL Server 存储过程，保留换行符和制表符

Question

SQL Server: I have copied and saved a stored procedure in a database. During that process, it has escaped the line feeds and tabs into \\n and \\t characters throughout the stored procedure text so it looks like:

SQL = "create PROCEDURE ScrambleNames\n\t@removeAdmins bit \nAS\nBEGIN\n\t-- SET NOCOUNT ON added to prevent..."  just shortened for clarity

using (DbConnection dbcn = dbf.CreateConnection())
{
    dbcn.ConnectionString = cnxn;
    dbcn.Open();

    using (DbCommand dbcmd = dbcn.CreateCommand())
    {
        dbcmd.CommandType = CommandType.Text;
        dbcmd.CommandText = SQL;

        dbcmd.ExecuteNonQuery();
    }
}

I want to read that SQL statement with C# and use it to create an actual stored procedure in another database by executing that command. Obviously, when I try and execute it without any changes, it says there is a syntax error near \\ and fails. I've tried replacing the \\n and \\t with actual binary characters in the string but it fails with more errors:

Incorrect syntax near '1'... etc.

So, how can I read the text from the database and keep the line feeds and tabs in the stored procedure I'm trying to create?

Answer 1

Use verbatim strings with @ to support multiline strings, like this

     SQL = @"create PROCEDURE ScrambleNames 
             @removeAdmins bit  
             AS BEGIN 
             -- comment here
             SELECT * FROM";

            using (DbConnection dbcn = dbf.CreateConnection())
            {
                dbcn.ConnectionString = cnxn;
                dbcn.Open();
                using (DbCommand dbcmd = dbcn.CreateCommand())
                {
                    dbcmd.CommandType = CommandType.Text;
                    dbcmd.CommandText = SQL;
                    dbcmd.ExecuteNonQuery();
                }
            }

Example to explain verbatim string:

normal_string = "Line1 \n Line2 \n line3";
same_as_verbatim_string = @"Line1
                            Line2
                            line3";