nulls发音

意思翻译

n.无意义暗码；[电子]零位（null的复数）

v.使无效；取消（null的单三形式）

相似词语短语

phoxinus fish───石首鱼

monuments definition───纪念碑定义

Cont nue───裸体

hazelnut liqueur───榛子酒

micrococcus tetragenus genbank───genbank四属微球菌

denudation kidney───肾剥脱术

sale revenue───[经] 销售（货）收入

coquilla nut carving───椰子雕刻

unusually informed───异常通知

deshabille pronunciation───德沙比利发音

双语使用场景

CWF fields must be padded with SPACES (not NULLS).───CWF字段必须带空格(而不是NULL)。

number of NULLs in the column.───列中null值的个数。

The value for the first key is 4 bytes long and it is entirely NULLs.───第一个键的值为 4 字节且其完全为 NULL。

Char and binary columns that do not allow nulls are always padded to the length of the column.───始终将不允许为空的char和binary列填充到列长。

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。

Note that this setting is independent of the nulls setting in the columns contained in the foreign key.───注意该设置与外键中所包含列的nulls设置无关。

Add table columns , and specify the column name and data type of the new column, as well as whether the column allows nulls .───添加表列，指定列名和新列的数据类型以及该列是否允许空值。

Define a primary key to enforce uniqueness for values entered in specified columns that do not allow nulls .───定义主键可以对在不允许空值的指定列中输入的值强制唯一性。

The ANSI_NULLS option must have been set to ON for the execution of all CREATE TABLE statements that create tables referenced by the view.───要执行所有CREATETABLE语句以创建视图引用的表，ANSI_NULLS选项必须设置为ON。

英语使用场景

Numerical results show the effectiveness of the proposed technique, the null depth levels obtained are lower than those reported in the literatures. Nulls are imposed both at the specified directi...

The character of the eigenvalues of the constraint matrix was aimed, and the character is that the matrix has the same number of larger eigenvalues as number of the nulls that the matrix denoted.

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

Numerical results show the effectiveness of the proposed technique, the null depth levels obtained are lower than those reported in the literatures. Nulls are imposed both ...

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

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