The pseudo column LEVEL is used in a string to make the hierarchy visible.

可在字符串中使用伪列LEVEL，使分层结构变得可视。

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In the following example, the pseudo column LEVEL is specified on the select list.

在下列示例中，在选择列表中指定伪列LEVEL。

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In order to protect data at rest, DB2 and IDS both support column level encryption (CLE).

为了保护静止的数据，DB2和IDS都支持列级加密(CLE)。

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If Sprint is available at level 15, it should not be grayed out in the Free column.

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