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- The REFERENCES clause now supports the SET NULL and SET DEFAULT cascading referential integrity actions. REFERENCES子句现在支持级联引用完整性操作SET NULL和SET DEFAULT。
- SET NULL All the values that make up the foreign key are set to NULL when the corresponding row in the parent table is deleted. 如果删除父表中与外键相对应的行,组成外键的所有值都将设置为NULL。
- Set Null Sets the value to null if all foreign key columns for the table can accept null values. 设置空如果表的所有外键列都可接受空值,则将该值设置为空。
- It is now our aim to set up a factory. 我们现在的目的是创办一座工厂。
- She had the sapphire set in a gold ring. 她把那枚蓝宝石镶在金戒指上了。
- The judgment set a new precedent. 那次判决树立了一个新的判例。
- A rival company has set afloat a new credit scheme. 一家竞争的公司已开始实施一项新的信用购物方案。
- By default, the new object is set to null. 默认情况下,新对象设置为空。此字段为只读。
- She bought a set of furniture on easy terms. 她以分期付款的方式买了一套家具。
- The printer can set this additional page in here. 这位印刷工把这额外的一页加在这里。
- A committee was set up to look into the workers' grievances. 成立了一个委员会来调查工人的不满。
- A very nice set of glasses came under the hammer yesterday. 昨天拍卖了一套很精致的玻璃杯。
- I set a high value on his advice. 我认为他的忠告很有价值。
- My finding: Class C was a null set. 我的发现：等级C是一个空集。
- A price of $1000 was set on the jewel thief's head. 悬赏1000美元抓住这个珠宝窃贼。
- The clause should be set off by a comma. 这个从句应该用逗号隔开。
- Large air and navel forces were set into action. 庞大的空军和海军部队开始行动了。
- How much did your new bicycle set you back? 你的新自行车花掉了你多少钱？
- They haven't set a date for their wedding yet. 他们的婚期还没定下来。
- Her diligence has set an example to the others. 她的勤奋为其他人树立了榜样。
