如果我们回想一下我们一开始讲过的数据对象的种类，浮点数，整数，字符串，它们实际上有相同的行为方式。

If we go back up to the kinds of data objects we started with, floats, ints, strings, they actually behave the same way.

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在DB 2 9之前，XML数据要么作为字符大对象(CLOB)按原样存储，要么分解到关系表中。

Prior to the DB2 9 release, XML data was either stored intact as a character large object (CLOB) or shredded to relational tables.

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因为大多数数据库对数据库对象名称的字符和字符长度有要求，所以在为物理模型中的数据对象命名时，常常使用缩写。

Since most databases have requirements on characters and character length of database object names, abbreviations are usually used when naming data objects in physical models.

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