18) DECIMAL specifies the data type exact numeric, with the decimal scale specified by the <scale> and the implementation-defined decimal precision equal to or greater than the value of the specified <precision>. Conclusion The SQL DECIMAL data type is part of the SQL standard and is implement...
Be sure to select the appropriate data type for your particular scenario. SQL Numeric Data Types Data TypeFrom BIT1 TINYINT0 SMALLINT INT BIGINT-9,223,372,036,854,775,8089,223,372,036,854,775,807 DECIMAL-10^38 + 110^38 - 1 NUMERIC...
程序集: System.Data.Common.dll Source: SQLDecimal.cs 表示介于 - 10^38 +1 和 10^38 - 1 之间的数值,精度和小数位数固定。 C# 复制 public struct SqlDecimal : IComparable, IEquatable<System.Data.SqlTypes.SqlDecimal>, System.Data.SqlTypes.INullable, System.Xml.Serialization.IXmlSerializable ...
DECIMAL 支持固定精度和比例 TINYINT SMALLINT INTEGER BIGINT FLOAT DOUBLE DATE TIME 仅支持0位精度 TIMESTAMP TIMESTAMP_LTZ 仅支持月和秒的间隔 ARRAY MULTISET MAP ROW RAW Structured types 仅在用户定义函数中暴露 字符串类型 CHAR CHAR是一个定长字符字符串的数据类型。 声明方式: SQL:...
Example : A table using numeric data types -- Creating a new table named "test" in the current schema CREATE TABLE test ( -- Defining a column named "id" of the DECIMAL data type, designated as the PRIMARY KEY id DECIMAL PRIMARY KEY, ...
#1. 数字: 整型:tinyinit int bigint 小数: float :在位数比较短的情况下不精准 double :在位数比较长的情况下不精准 0.000001230123123123 存成:0.000001230000 decimal:(如果用小数,则用推荐使用decimal) 精准 内部原理是以字符串形式去存 #2. 字符串: char(10):简单粗暴,浪费空间,存取速度快 root存成root0000...
https://learn.microsoft.com/zh-cn/power-bi/connect-data/desktop-data-types 一:数据类型 1.1 数字类型 数字类型包含了,Integer(64 bit) 即整数型,,Decimal 十进制 (floating point) 即浮点型,日期时间型、货币型(以整数形式储存,整数的最后四位用作小数位数)、布尔型等等 ...
將指定的 SqlDecimal 數字四捨五入到下一個較低的整數。 C# 複製 public static System.Data.SqlTypes.SqlDecimal Floor (System.Data.SqlTypes.SqlDecimal n); 參數 n SqlDecimal 要計算最低限度值的 SqlDecimal 結構。 傳回 SqlDecimal SqlDecimal 結構,包含這個 SqlDecimal 結構的整數部分。 適用於 產品...
DEC(size,d)Equal to DECIMAL(size,d) Note:All the numeric data types may have an extra option: UNSIGNED or ZEROFILL. If you add the UNSIGNED option, MySQL disallows negative values for the column. If you add the ZEROFILL option, MySQL automatically also adds the UNSIGNED attribute to the...
Decimal and Numeric Numeric data types that have fixed precision and scale. [(p[,s])] andnumeric[(p[,s])] aredecanddec(p,s).numericis functionally equivalent todecimal. (scale) . Scale can be specified only if precision is specified. The default scale is 0; therefore, 0 <=s<=p....