我需要以下列方式创建约束:
CONSTRAINT [IX_Unique_1] UNIQUE NONCLUSTERED
(
[Ordering] ASC,
[Description] ASC
),
CONSTRAINT [IX_Unique_2] UNIQUE NONCLUSTERED
(
[Description] ASC
)
我有以下 nHibernate 映射:
<property name="Description" column="Description" type="String" unique-key="IX_Seed_Template_Fields_Result" />
<property name="Ordering" column="Ordering" type="Int32" unique-key="IX_Seed_Template_Fields_Result" />
那么,我怎样才能为描述列添加一个单独的唯一约束呢?