与参数的情况一样,不指定长度。
在声明数据类型为 XML 时,不指定长度。
对于需指定长度的数据类型,双击并输入一个值。
For data types that have length specifications, double-click and type the values. Use the following list to specify the data types for the columns in the table.
And if you don't put a point but just put a number, this specifies the width of space that will be used by the number you're inserting there.
如果你不用点而只用数字,这个指定的长度是由,你插入的数字决定的。
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