nulls

The general requirement for these algorithms is that the container does not contain any nulls .

这些算法的通用要求是，容器不能包含任意空值。

For rows belonging to the table , indicates whether nulls are allowed in this column .

对于属于此表的行，指示此列是否允许包含空值。

The physical data type ' % s ' does not allow nulls .

物理数据类型''%1！''不允许为空。

An Improved Method for Synthesizing Antenna Pattern with Broad Nulls

一种改进的宽零陷天线方向图合成方法

On the Far - Field Pattern with Deep Nulls

远区方向图具有深零位问题的研究

Ensure that there are no nulls embedded at the end of the file .

确保文件最后没有嵌入空格。

Signal reconstruction of channel spectral nulls in TDS-OFDM systems

TDS-OFDM对信道频谱零点的重建

The two nulls indicate that we do not want to change the last access time or creation time for this file .

这两个null指出，我们不想改变这一文件的最后访问时间或者创建时间。

The value for the first key is4 bytes long and it is entirely NULLs .

第一个键的值为4字节且其完全为NULL。

The Relation between Nulls of Smart Antenna Pattern and Character of the Eigenvalues of Constraint Matrix

智能天线方向图零陷与约束矩阵特征值的关系

The number of NULLs in the column

列中NULL值的个数

UTF-8 files only contain nulls that are really meant to be null .

UTF-8文件仅在确实表示null的地方包含null。

SQL / XML is good if you want results returned as sets and missing XML elements represented with nulls .

如果您希望将结果作为集合返回，且将丢失的XML元素表示为空，那么SQL/XML有优势。

RPG uses a1 character field ( like an indicator ) to determine if a column contains nulls .

RPG使用一个1字符字段（比如一个指示符）来确定列是否包含空值。

Numerical examples show that nulls at any sidelobe positions can be rapidly achieved by MDLS method .

计算实例表明，该方法能够在指定的任意副瓣位置迅速生成深零点。

Likewise , if the NULLS LAST option is used , the last partition must end with MAXVALUE .

同样，如果使用NULLSLAST选项，最后一个分区必须结束于MAXVALUE。

I might want to do more than simply concatenate the values : I might want to check for nulls .

我可能想做很多事情（比如检查一些空值），而不仅仅是串联一些值。

Computer simulation proves that this method has advantages of fast convergence , nulls balance and reliability in array antenna synthesis compared existing algorithms .

计算机仿真结果表明，与现有算法相比，该方法用于天线方向图综合具有收敛速度快、零陷均衡、可靠等优势。

In particular , the final example of translating new line characters to nulls would not work if some file names already contained new line characters .

尤其是在最后一个例子中，如果一些文件名已经包含新行字符串，那么将新行字符串转换成null字符串将导致错误。

It is important to note that when the NULLS FIRST option is specified , the first partition must start at MINVALUE .

一定要注意，当指定NULLSFIRST选项时，第一个分区必须从MINVALUE开始。

While a normal index can be used , it wastes a lot of space for nulls you are probably not going to query against .

如果使用普通索引的话，即使你并不打算对它进行查询，它也会因为null值浪费大量的空间。

If the column is NULLABLE , any number of NULLs can be inserted in that column .

如果此列可以包含NULL值，就可以在此列中插入任意数量的NULL值。

It 's the situation where , for instance , someone passes a null value to a method not coded to handle nulls .

比方说，把null值传入一个并未编写如何处理null值的方法中，这就是一种边界情况。

A channel model based on multi-path propagation is introduced , and the influence of spectral nulls to OFDM system caused by multi-path propagation is analyzed .

根据多径效应对电力线信道模型的影响，介绍了一种基于多径衰落的信道模型，并分析了多径传播造成的频谱零点对OFDM系统性能的影响。

The options include whether to check constraints , enable identity inserts , keep nulls , fire triggers , or lock the table .

选项包括是否检查约束、启用标识插入、保留空值、激发触发器或锁定表。

After the narrow nulls steering , two methods for broad nulls steering are considered , grounded on the theory of derivative constraints .

在已有的窄零陷形成基础上，又基于导数约束思想提出了两种宽零陷的综合方法。

For this report run only nulls are being suppressed on both the row and column edge of the crosstab .

对于该报表运行，仅在交叉表的行和列边缘上抑制了nulls。

Finally , if you lack email addresses for some Gold customers , you may want to write a query to exclude nulls from the result set .

最后，如果有些Gold客户没有email地址，那么可能要编写一个查询从结果集中排除null值。

If one record set has more rows than the other , data in that column will continue while nulls will be displayed for the other as seen below .

如果一个记录集比另一个多，此列中的数据将会继续增加，而另一个显示null，如下所示。

Since the requirement is to only suppress nulls , the visual null suppression can be replaced by the Null suppression on the actual query .

因为需求是仅抑制nulls，可视的nullsuppression可由实际查询上的Nullsuppression替换。