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How to remove white space in VB.NET

Akaglo asked:

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In the following code all the subject codes are read by SQLDataReader rd. How do I make the DataReader read the subject code of only the selected subject regardless of whether the subject name contain white space or not such as Biology, English Language, Principles of Cost Accounting, etc?
Dim sql = "Select subjectCode From ProgramDetails.subjects where subjectname like @subname"
       Using con = New SqlConnection("Data Source=EBENEZERAKAGLO\SQLEXPRESS;Initial Catalog=Naass;Integrated Security=True")
           Using cmd = New SqlCommand(sql, con)
               cmd.Parameters.AddWithValue("@subname", String.Format("%{0}%", ""))
               Using rd = cmd.ExecuteReader()
                   While rd.Read()
                       Dim subjectCode = rd.GetInt32(0)
                       subcode = subjectCode
                       ' ... '
                   End While
               End Using
           End Using
       End Using


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