| 1. | F . adding a default constraint to an existing column
F .在现有列中添加一个default约束 |
| 2. | For more information about these default constraints , see
有关这些默认约束的更多信息，请参见 |
| 3. | Table has a default constraint
表具有default约束。 |
| 4. | As the default constraint , instead of
，而不是将 |
| 5. | If you do n ' t apply a constraint , a default constraint is applied for you
如果您并未具体指定，则使用默认的限制。 |
| 6. | Bound defaults and default constraints cannot be used with an identity column
不能对标识列使用绑定默认值和default约束。 |
| 7. | Provide priority consignments facility , assign default constraint code automatically
提供“优先货物”设施，自动编制预设的限制代码 |
| 8. | As its default constraint , you should reset this configuration while doing the tutorial . you configure the auto - connect features in the
作为默认的约束，则应当在执行教程时重置此配置。 |
| 9. | Use session user with default constraints in either the create table or alter table statements , or use it as any standard function
Session _ user可在create table或alter table语句中与default约束一起使用，或者将它用作任何标准函数。 |
| 10. | If no default constraint is defined for the column , this function sets the column to null . an exception is thrown if the row is not marked as updatable
如果没有为该列定义默认的约束，此函数便将该列设置为空引用（在visual basic中为nothing ） 。 |
