What is the exact text of the exception that you catch when you execute the delete operation?
Peer code review time: > connectionString = "Provider=SQLOLEDB;Data > Source=Ravi;Initial Catalog=Master;" + > "Integrated Security=SSPI;"; > } > > OleDbConnection connection = new OleDbConnection > (connectionString); If your code will always be executing against SQL Server, and only SQL Server, then consider using the SQL Server Managed Provider classes (SqlCommand, SqlConnection, et al) for better performance. > String StrCreateDb = "Create Database > ["+textBox1.Text+"]"; Consider using StringBuilder to concatenate strings for better performance: System.Text.StringBuilder createDB = new System.Text.StringBuilder(); createDB.AppendFormat("CREATE DATABASE [{0}]", textBox1.Text); string StrCreateDb = createDB.ToString(); > for(int x=0; x<=200000;x++) > { > } Huh?