This tutorial introduces new users of IBM DB2 to relational database concepts through a fun and interactive game called The DB2 Detective Game.

本教程通过一个有趣的交互式游戏向 IBM DB2 的新用户介绍关系数据库概念，该游戏称为 DB2 侦探游戏。

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The introduction does an excellent job of introducing the concepts behind MongoDB, bridging them to the relational database concepts I already know.

书的前言很好的介绍了MongoDB所涉及的概念，将这些新概念跟我所熟悉的关系数据库中的概念联系在一起。

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This tutorial introduces new users of IBM Informix 11 to relational database concepts through a fun and interactive game called The Informix Detective game.

本教程通过一个有趣的交互式游戏Informix Detective Game向IBM Informix 11新用户介绍关系数据库概念。

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