使用 類別的 DataType 其中一個靜態成員,例如 Int。這實際上會傳回 對象的實例 DataType。 DataType物件有數個定義數據類型的屬性。 例如, SqlDataType 屬性會指定 SQL Server 數據類型。 代表 SQL Server 數據類型的 SqlDataType 常數值會列在 列舉中。 這是指 varchar、n
以下是从 Visual Basic 数据类型到 SQL Server 数据类型的转换。 Visual Basic 数据类型SQL Server 数据类型 Long、Integer、Byte、Boolean、Objectint Double、Singlefloat 货币money 日期datetime 小于或等于 4,000 个字符的 Stringvarchar/nvarchar 大于4,000 个字符的 Stringtext/ntext ...
SQL Server does not automatically promote other integer data types (tinyint, smallint, and int) to bigint.Upozornění When you use the +, -, *, /, or % arithmetic operators to perform implicit or explicit conversion of int, smallint, tinyint, or bigint constant values to the floa...
This article provides a summary of the different data types available in the SQL Server Database Engine.
Numeric Data Types Data typeDescriptionStorage bitInteger that can be 0, 1, or NULL tinyintAllows whole numbers from 0 to 2551 byte smallintAllows whole numbers between -32,768 and 32,7672 bytes intAllows whole numbers between -2,147,483,648 and 2,147,483,6474 bytes ...
sql server 日期数据类型 sql日期的数据类型 sql数据类型 SQL Data Types define the type of value that can be stored in a table column. For example, if we want a column to store only integer values, then we can define it’s data type asint....
While SQL Server supports several dozen data types, R has a limited number of scalar data types (numeric, integer, complex, logical, character, date/time, and raw). As a result, whenever you use data from SQL Server in R scripts, data might be implicitly converted to a compatible data ...
In large-scale applications with a massive influx of data, an integer-based identifier might approach its positive limit faster than anticipated. One approach to circumvent this limitation, without immediately switching to theBIGINTdata type, is to utilize the negati...
(Exact numeric SQL Server data type) We use exact numeric data types for integer, decimal, and money. Each data type has its own lower, upper limit and memory requirements. We should use the smallest data type to save memory requirements as well. For example, we can use the bit data ty...
datetimeoffset2 microsoft.sql.Types.DATETIMEOFFSET microsoft.sql.DateTimeOffset decimal DECIMAL java.math.BigDecimal float DOUBLE double image LONGVARBINARY byte[] int INTEGER int money DECIMAL java.math.BigDecimal nchar CHAR NCHAR (Java SE 6.0) String ntext LONGVARCHAR LONGNVARCHAR (Java SE 6.0) String...