Conversions from derived type to base type are allowed.

允许从派生类型型到基类类型的转换.

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A user - defined data type can relate to its base type.

用户定义的数据类型可与其基类型相关.

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Personalized item names are now printed in the color of base type.

使成为私人的项目名字现在在卑劣类型的颜色中被加印.

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Destructors provide appropriate safeguards, such as automatically calling the base type's destructor.

析构函数提供了适当的保护措施, 如自动调用基类型的析构函数.

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Therefore, the method does not override the base type method.

因此, 该方法不重写基类型方法.

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If type is being redefined the base type has to be self - rereference.

如果类型正在被重定义,则基类型必须自引用.

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Initially, the new type inherits all the properties of the base type - in particular generators and suffix.

起初, 新类型继承了基类型的所有属性 - 尤其是生成器和后缀.

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Cannot change the base type, length, precision , scale, nullability, or collation of an existing User - defined datatype.

无法更改用户定义的现有数据类型的基本类型 、 长度 、 精度 、 小数位数 、 为空性或整理规则.

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The derived type and the base type must have the same content type.

派生类型和基类型必须具有相同的内容类型.

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