您要查找的是不是：
- And check for null values. 运算符以及检查空值。
- To check for null values before calling this method. 以便在调用此方法之前检查null值。
- By doing this, you make sure that any CHECK constraints on partitioning columns do not have to check for null values. 这样做,可确保分区依据列上的任何CHECK约束不必检查NULL值。
- To look for null values before calling this method. 以便在调用此方法之前查找空值。
- Turn the tap on and check for leaks. 把水龙头关上,检查一下那里漏水。
- How do I put on the respirator and check for proper fit? 如何佩戴防护口罩并检验适合性?
- Read one's own article to a classmate and check for mistakes. 读一篇文章给一位同班同学听,以检查错误。
- Q14：How do I put on the respirator and check for proper fit? 问14：如何佩戴呼吸器并进行适合性检验？
- Open their airway as before and check for normal breathing again. 像先前一样打开气道，并再次检查是否有正常呼吸。
- This generates the element for NULL values in the AddressLine2 and City columns in the rowset. 这将为行集中的AddressLine2和City列中的NULL值生成元素。
- I knelt down beside the body and checked for a respiration. 我跪在他身旁检查他是否还有呼吸。
- The following example creates an alias data type (based on datetime) named birthday that allows for null values. 以下示例创建允许空值并且名为birthday的别名数据类型(基于datetime)。
- If you want to check for NULL key values then try 如果想检测NULL键值,可以试试下边的方法。
- Click the "Submit Request" button below and check for a confirmation email. 单击下面的“提交请求”按钮提交并确认Email地址。
- Go to the nearest casualty, provided it is safe, and check for responsiveness. 如果是安全的，那么走近最近的伤员，检查他的反应。
- In particular, run a memory check, and check for faulty or mismatched memory. 特别是，进行记忆检查，并且检查对于有毛病或被配错的记忆。
- You can optionally specify the ELEMENTXSINIL directive to request the generating element for NULL values where the xsi: nil attribute is set with the value TRUE. 另外,也可以指定ELEMENTXSINIL指令以请求为xsi:nil属性设置为TRUE值的NULL值生成元素。
- HOUSE: And check for evil stepmothers. This much sleep usually indicates poison apples. 别忘了查查邪恶的继母，这么长的睡眠通常是由毒苹果引起的。
- Always check the return value of new for null. 总是检查返回值是否无效。
- Existing articles need expanding and checking for spelling and mistakes. 现有的新聞需要扩展和检查拼写和笔误。
