To do so, click on the Add icon, and then select the database object type Foreign Key Constraint, as shown in Figure 4c.

为此，单击add图标，然后选择数据库对象类型Foreign Key Constraint，如图4c所示。

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For example, all JDBC calls in any object type roll up to the database level to summarize the average elapsed time and volume of requests for all calls to the database.

例如，任何对象类型中的全部JDBC调用都上升到数据库级别，从而为所有的数据库调用汇总平均运行时间和请求量。

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If you choose database storage areas as the default type, then the object store database is used to store a document's content.

如果选择数据库存储区域作为默认类型，则使用对象存储数据库来存储文档的内容。

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