A filter expression is created in the warehouse target model which will use the default value (if provided).
在仓库目标模型中创建一个过滤器表达式,这将用到默认值(如有提供)。
The value of the last expression is the default return value of a function.
最后一个表达式的值是默认的返回值。
The default expression calculates a value to assign to the global variable the first time it is referenced.
在第一次引用时,默认表达式将为全局变量计算一个值。
Leave the default value for this exercise, but, in a real-world transformation you can replace it with an XPath expression.
对于这里的练习,您可以保持默认值不变,但是,在真实的转换操作中,您就可以使用一个XPath表达式来替换它。
The default value for an optional parameter must be a constant expression.
可选参数的默认值必须是一个常数表达式。
By default, an expression that contains only constant values causes a compiler error if the expression produces a value that is outside the range of the destination type.
默认情况下,如果表达式仅包含常数值,且产生的值在目标类型范围之外,则它会导致编译器错误。
By default, an expression that contains only constant values causes a compiler error if the expression produces a value that is outside the range of the destination type.
默认情况下,如果表达式仅包含常数值,且产生的值在目标类型范围之外,则它会导致编译器错误。
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