null value 中文意思是什麼
null value
解釋
空值-
Parameter must contain a valid database name, and cannot contain a null value, an empty string, or a string with only blank characters
參數必須包含有效的數據庫名稱，不能包含空值、空字元串（ " ）或只有空白字元的字元串。 -
If you allow nulls for this clean type, you must put a null value in the bound column of the rules table
如果允許該清理類型為空（ null ） ，則必須在規則表的bound列中放入null值。 -
Retain a null value during the bulk load operation
在大容量加載操作過程中保留空值。 -
Is not a numeric data type, this is a null value
不是數值數據類型，則它為空值。 -
During expression evaluation when set arithabort is off, if an insert, delete or update statement encounters an arithmetic error, overflow, divide - by - zero, or a domain error, sql server inserts or updates a null value
如果set arithabort為off ，並且在對表達式求值的過程中insert 、 delete或update語句遇到算術錯誤（溢出、被零除或域錯誤） ， sql server將插入或更新一個null值。 -
A null value in the system is an empty object that has no value
系統中的空值是沒有值的空對象。 -
A null value indicates that there is no value
空值表示沒有值。 -
The null value in the system is an empty object that has no value
系統中的null值是一個沒有值的空對象。 -
A null value if the base catalog name cannot be determined
如果無法確定基目錄名稱，則為空值。 -
If a column has a default value, pass a null value in the array to set the default value for that column
如果某一列具有默認值，則在數組中傳遞空值，以便為該列設置默認值。 -
The limit of detection is the lowest value of the quantity to be measured which the analytical method is capable of showing not to be a null value
答案揭曉：檢出限是分析方法可（從樣品中）有效檢出待測物質的最小量。 -
On linux and unix installations, this is not as big a concern, since a null value defaults to the primary group of the instance owner, which by default after an installation only contains the user id of the instance owner
在linux和unix安裝中，這不是一個大問題，因為null值默認為實例所有者的基本組，而基本組在安裝后只包含實例所有者的用戶id 。 -
On linux and unix installations, this is not as large a concern since a null value defaults to the primary group of the instance owner, which by default only contains the user id of the instance owner after an installation
在linux和unix安裝上，這不是個大問題，因為null值默認表示實例擁有者的主組，而這個組在安裝之後默認情況下只包含實例擁有者的用戶id 。 -
All comparisons to a null value evaluate to unknown
與空值的所有比較的結果均為unknown 。 -
True, all comparisons to a null value evaluate to unknown
，則所有與空值的比較求得的值均為unknown 。 -
This means all comparisons against a null value evaluate to unknown
這表示所有對空值的比較都取值為unknown 。 -
When on is specified, all comparisons to a null value evaluate to unknown
當指定為on時，所有與空值的比較運算計算結果為unknown 。 -
When set ansi nulls is on, all comparisons against a null value evaluate to unknown
當set ansi _ nulls為on時，所有對空值的比較均取值為unknown 。 -
Specifies that the ansi nulls option setting for the table is on, meaning all comparisons against a null value evaluate to unknown
指定表的ansi nulls選項設置為on ，表示所有與空值的比較都取值為unknown 。 -
For database - level entities a one - part name is accepted, with a null value meaning " current database "
對于數據庫級實體，只接受由一部分組成的名稱，空值表示「當前數據庫」 。
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