public void CreateSchema(DbConnection cn, string catalogName, string schemaName)
{
if (cn == null) throw new ArgumentNullException("cn");
if (catalogName == null) throw new ArgumentNullException("catalogName");
if (catalogName.Length == 0) throw new ArgumentException("catalogName");
if (schemaName == null) throw new ArgumentNullException("schemaName");
if (schemaName.Length == 0) throw new ArgumentException("schemaName");
cn.ImmediateExecuteNonQuery(FormatCreateSchemaCommandText(catalogName, schemaName));
}