字符串数据长度的变化或数值型数据精度和等级的变化也表明在数据的表示、验证和使用上存在潜在的问题。

Variations in length for string data or in precision and scale for numeric data also point to potential issues in data presentation, validation, and usage.

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危机对更加复杂的设计建模，除了逻辑型，字符串型，整数型，用户自定义的数据类型，您可以对更加复杂的问题建模。

To model more complex designs, you can type tags by stereotypes and meta-classes, in addition to Boolean, string, integer, user-defined data type, and terms.

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如果输出定义包含返回字符串的输出表达式，它们会生成VARGRAPHICS (255) for DB 2类型的列，或者基于数据库类型的等效列。

If the output definition contains output expressions returning a string, they produce columns of type VARGRAPHICS (255) for DB2, or an equivalent type depending on the database type.

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