total_decimal = Decimal('0.1') + Decimal('0.2') print("[0.1 + 0.2] 使用 float 类型进行计算:", total_float) # 输出可能是 0.30000000000000004,而不是期望的 0.3 print("[0.1 + 0.2] 使用 Decimal 类型进行计算:", total_decimal) print() print("[1.23 ÷ 0.1] 使用 float 类型进行计算:", (...
使用LOG10函数计算小数部分的位数。 以下是查询并判断float字段小数位数的代码: SELECTFloatColumn,FLOOR(FloatColumn)ASIntegerPart,FloatColumn-FLOOR(FloatColumn)ASDecimalPart,CASEWHENFloatColumn=0THEN0ELSEFLOOR(LOG10(ABS(FloatColumn-FLOOR(FloatColumn)))ENDASDecimalPlacesFROMTestTable; 1. 2. 3. 4. 5. 6...
If the value of d is not specified during the function call, the function will automatically round the specified numeric value to the nearest integer. The function will return the following type based on the input type: Int64(input) -> float64(output) Numeric(input) -> numeric(output) Bign...
FLOAT(size,d)A floating point number. The total number of digits is specified insize. The number of digits after the decimal point is specified in thedparameter. This syntax is deprecated in MySQL 8.0.17, and it will be removed in future MySQL versions ...
SQLSRV_SQLTYPE_DECIMAL($precision, $scale)decimal SQLSRV_SQLTYPE_FLOATFLOAT SQLSRV_SQLTYPE_IMAGEimage1 SQLSRV_SQLTYPE_INTint SQLSRV_SQLTYPE_MONEYmoney SQLSRV_SQLTYPE_NCHARnchar5 SQLSRV_SQLTYPE_NCHAR($charCount)NCHAR SQLSRV_SQLTYPE_NUMERICnumeric5 ...
Numeric decimal SqlDecimal Numeric numeric SqlDecimal Numeric float Double Numeric real Single Numeric smallmoney Decimal Numeric money Decimal Date and Time date DateTime Date and Time time TimeSpan Date and Time datetime DateTime Date and Time smalldatetime DateTime Date and Time datetime2 DateTime Da...
How to convert a decimal(18,4) to a decimal(2,2)? How to convert a float to timestamp or datetime? How to convert a number stored as bigint to numeric to include 2 decimal places How to convert Calendar Month Year to Fiscal Month Year How to convert client date time to UTC date ...
IfParameterTypeis SQL_DECIMAL, SQL_NUMERIC, SQL_FLOAT, SQL_REAL, or SQL_DOUBLE, the SQL_DESC_PRECISION field of the IPD is set to the value ofColumnSize. For other data types, theColumnSizeargument is ignored. For more information, see "Passing Parameter Values" and SQL_DATA_AT_EXEC in...
python基础之数值类型 python3中共有11种基本数据类型,而这11种基本数据类型又通常分成3类,即数值类型:int (整形)float(浮点型) bool(布尔) complex(复数) 序列类型...().prec=x 来设定,不同的数字可以有不同的精度浮点:十进制小数点的位置不固定(但位数是固定的)使用方法如下图所示,首先需要导入decimal模块...
SQLSRV_SQLTYPE_DECIMALdecimal5 SQLSRV_SQLTYPE_DECIMAL($precision, $scale)decimal SQLSRV_SQLTYPE_FLOATfloat SQLSRV_SQLTYPE_IMAGEimage1 SQLSRV_SQLTYPE_INTint SQLSRV_SQLTYPE_MONEYmoney SQLSRV_SQLTYPE_NCHARnchar5 SQLSRV_SQLTYPE_NCHAR($charCount)nchar ...