Publish public bookmark 07/20/2013

• SQL to Aggregation Framework Mapping Chart

  • The aggregation framework allows MongoDB to provide native aggregation capabilities that corresponds to many common data aggregation operations in SQL.
  • The MongoDB statements prefix the names of the fields from the documents in the collection orders with a $ character when they appear as operands to the aggregation operations.

• 手ぶら・空港宅配サービス│海外航空券│ANA国際線

• 家族でマイルが合算できる！ANAカードファミリーマイル│ANAマイレージクラブ

Posted from Diigo. The rest of my favorite links are here.