TSQL Creating a Table using another UserDefinedType?
TSQL使用另一个用户定义的类型创建一个表?
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A structured data type is a form of user-defined data type that contains a sequence of attributes, each of which has a data type.
结构化数据类型是一种用户定义的数据类型,它包含了一系列的属性,每一个属性都有一个数据类型。
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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.