对于表，可以使用CHECK约束来确保完整性。
CHECK约束非常适合执行此项操作，如以下所示表定义。
The CHECK constraint is perfect for this, as the following table definition shows.
确定表设计所给出的约束。
约束通过某种方式对列或表进行限制。
A constraint limits either a column or a table in some manner.
允许您为表创建表检查约束。
The check constraints view allows you to create table check constraints for the table.
Checkconstraints视图允许为表创建表检查约束。
The Check constraints view allows you to create table check constraints for the table.
表必须具有相同的主键、唯一索引或唯一约束。
Tables must have the same primary key, unique index, or unique constraint.
唯一约束是表的主键，因此不能移除。
Can't remove unique constraint since it's the primary key of a table.
约束是有助于保持表中数据的完整性的规则。
Constraints are rules that help preserve the integrity of data in a table.
当保存表时，将在数据库中创建该唯一约束。
The unique constraint is created in the database when you save the table.
定单中所列进度表对供应商具有当然的约束力。
The time schedule set down in the order is imperatively binding on the supplier.
相同的结构(表架构、关系和约束)和数据。
With the same structure table schemas, relations, and constraints and data as this.
会略过将多个条件约束加入到资料表的陈述式。
Statements that add multiple constraints to a table are skipped.
目标表不能有触发器与完整性约束。
目标表不能有触发器与完整性约束。
目标表不能有触发器与完整性约束。
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