Mono.Data.Sqlite.SqliteConnection.Schema_Triggers C# (CSharp) Method

    private DataTable Schema_Triggers(string catalog, string table, string triggerName)
    {
      DataTable tbl = new DataTable("Triggers");
      DataRow row;

      tbl.Locale = CultureInfo.InvariantCulture;
      tbl.Columns.Add("TABLE_CATALOG", typeof(string));
      tbl.Columns.Add("TABLE_SCHEMA", typeof(string));
      tbl.Columns.Add("TABLE_NAME", typeof(string));
      tbl.Columns.Add("TRIGGER_NAME", typeof(string));
      tbl.Columns.Add("TRIGGER_DEFINITION", typeof(string));

      tbl.BeginLoadData();

      if (String.IsNullOrEmpty(table)) table = null;
      if (String.IsNullOrEmpty(catalog)) catalog = "main";
      string master = (String.Compare(catalog, "temp", true, CultureInfo.InvariantCulture) == 0) ? _tempmasterdb : _masterdb;

      using (SqliteCommand cmd = new SqliteCommand(String.Format(CultureInfo.InvariantCulture, "SELECT [type], [name], [tbl_name], [rootpage], [sql], [rowid] FROM [{0}].[{1}] WHERE [type] LIKE 'trigger'", catalog, master), this))
      using (SqliteDataReader rd = (SqliteDataReader)cmd.ExecuteReader())
      {
        while (rd.Read())
        {
          if (String.Compare(rd.GetString(1), triggerName, true, CultureInfo.InvariantCulture) == 0
            || triggerName == null)
          {
            if (table == null || String.Compare(table, rd.GetString(2), true, CultureInfo.InvariantCulture) == 0)
            {
              row = tbl.NewRow();

              row["TABLE_CATALOG"] = catalog;
              row["TABLE_NAME"] = rd.GetString(2);
              row["TRIGGER_NAME"] = rd.GetString(1);
              row["TRIGGER_DEFINITION"] = rd.GetString(4);

              tbl.Rows.Add(row);
            }
          }
        }
      }
      tbl.AcceptChanges();
      tbl.EndLoadData();

      return tbl;
    }