Thus far, we discussed how to write your JDBC Data Mediator Service code to perform some basic select queries and more advanced queries involving filters and multiple tables against a database.

到现在为止，我们讨论了如何编写 JDBC 数据中介服务代码来执行一些基本选择查询和更高级的查询（涉及过滤器和数据库中的多个表）。

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In the planing samples create the subset seen in Illustration 2, create a ti process with no data source and copy following code into the Prolog TAB of the Advanced section.

在规划示例中，创建如图2所示的子集，创建一个没有数据源的ti流程，并将以下代码复制到Advanced区域的Prolog选项卡下。

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