abstract data type 抽象料型; 抽象數(shù)據(jù)類型; 抽象數(shù)據(jù)型; 抽象數(shù)據(jù)種類; 抽象資料類型
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例句與用法
Numeric data types , sql server considers each specific combination of precision and scale as a different data type 數(shù)據(jù)類型, sql server會(huì)將精度和小數(shù)位數(shù)的每個(gè)特定組合視為不同的數(shù)據(jù)類型。
The precision depends on the definition of the column . if providertype is not a numeric data type , a null value 如果providertype不是數(shù)值數(shù)據(jù)類型,則它是空引用(在visual basic中為nothing )值。
For example , you might change the data type of a column that contains only integer data to a numeric data type , such as dt i2 例如,可以將只包含整型數(shù)據(jù)的列的數(shù)據(jù)類型更改為數(shù)值數(shù)據(jù)類型,例如dt _ i2 。
If the underlying odbc driver returns a precision value for a non - numeric data type , this value is used in the schema table 如果基礎(chǔ)odbc驅(qū)動(dòng)程序返回一個(gè)非數(shù)值數(shù)據(jù)類型的精度值,則將在架構(gòu)表中使用此值。
Numeric data is assigned a numeric data type , string data is assigned a character data type , and dates are assigned a date data type 為數(shù)值數(shù)據(jù)分配數(shù)值數(shù)據(jù)類型,為字符串?dāng)?shù)據(jù)分配字符數(shù)據(jù)類型,為日期分配日期數(shù)據(jù)類型。
Integration services includes a complete set of numeric data types , so that you can match the data type closely to the size of the data Integration services包含一組完整的數(shù)值數(shù)據(jù)類型,這樣可以使數(shù)據(jù)類型近似匹配于數(shù)據(jù)大小。
For example , the expression evaluator does not allow the comparison of an operand with a string data type to an operand with a numeric data type 例如,表達(dá)式計(jì)算器不允許將字符串?dāng)?shù)據(jù)類型的操作數(shù)和數(shù)值數(shù)據(jù)類型的操作數(shù)進(jìn)行比較。
However , this representation may cause a problem when the data type in the data source is a sql server decimal or numeric data type 但是,當(dāng)數(shù)據(jù)源中的數(shù)據(jù)類型是sql server decimal或numeric數(shù)據(jù)類型時(shí),這種表示形式可能會(huì)導(dǎo)致問題。
Since there are several different ways to express numbers , visual basic has several numeric data types to deal with numbers more efficiently 由于存在多種不同的數(shù)字表示方法,因此, visual basic提供了多種數(shù)字?jǐn)?shù)據(jù)類型以便更有效地處理數(shù)字。
The only exception is the result of a binary operation on two values with the dt decimal data type , which returns a result with the dt numeric data type 唯一的例外是,如果對(duì)兩個(gè)dt _ decimal數(shù)據(jù)類型的值執(zhí)行二進(jìn)制操作,則它將返回dt _ numeric數(shù)據(jù)類型的結(jié)果。