nullability 中文意思是什麼
nullability
解釋
為空性-
Change the nullability of the column from not null to null
將列的為空性從not null改為null 。 -
New columns defined without explicit nullability do not allow nulls
未顯式定義為空性的新列不允許使用空值。 -
Alters the session s behavior to use ansi compatibility for nullability
將會話的行為更改為使用ansi兼容的空性。 -
New columns defined without explicit nullability are defined to allow nulls
未顯式定義為空性的新列允許使用空值。 -
Alters the session s behavior not to use ansi compatibility for nullability
將會話的行為更改為不使用ansi兼容的空性。 -
Nullability of the column
列的可空性。 -
However, when nullable types are used directly as web method parameters or return values, the nullability will not be reflected in the resulting wsdl in the following cases : 1 when rpc - based soap messages are used, and 2 when document - based soap messages are used with encoded parameters in the bare mode. the topic,
但是,當可為空值的類型直接用於web方法的參數或返回值時,在以下情況下將不在結果wsdl中反映出這一可為空性: 1 )在使用基於rpc的soap消息時, 2 )在將基於文檔的soap消息在bare模式中用於編碼參數時。 -
It is advisable to check for the nullability attribute, like so
建議您檢查可以為空的屬性,如下所示: -
To determine nullability
可能十分有用。 -
Alters the behavior of the session to override default nullability of new columns when the ansi null default
時,更改會話行為以覆蓋新列的默認為空性。 -
Modifies the behavior of the session to override default nullability of new columns when the ansi null default
時,修改會話的行為以覆蓋新列的默認為空性。 -
The nullability property of arithmetic operators over floating point data type is always nullable
對浮點數據類型執行運算的算術運算符的為空性屬性始終可為空。 -
The nullability property of arithmetic operators over the floating point data type is changed to nonnullable for the case where the inputs are nonnullable and ansi warnings is on
在輸入不可為空並且ansi _ warnings為on的情況下,對浮點數據類型執行運算的算術運算符的為空性屬性將更改為不可為空值。 -
When ansi warnings or arithabort are set to on, the result of a floating point arithmetic operator is nonnullable, if both operands are nonnullable. this change in nullability could cause failure when
在ansi _ warnings或arithabort設置為on時,如果兩個操作數都不可為空,則浮點算術運算符的結果也不可為空值。
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