Impala mathematical functions

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Mathematical functions, or arithmetic functions, perform numeric calculations that are typically more complex than basic addition, subtraction, multiplication, and division. Binary to hexadecimal calculator For example,

these functions include trigonometric, logarithmic, and base conversion operations. Binary decision diagram Note: In Impala, exponentiation uses the pow() function rather than an exponentiation operator such as **.

Return type: double atan2(double a, double b) Purpose: Returns the arctangent of the two arguments, with the signs of the arguments used to determine the quadrant

ceiling(double a), ceiling(decimal(p,s) a), dceil(double a), dceil(decimal(p,s) a) Purpose: Returns the smallest integer that is greater than or equal to the argument.

Return type: bigint or decimal(p,s) depending on the type of the input argument conv(bigint num, int from_base, int to_base), conv(string num, int from_base, int

to_base) Purpose: Returns a string representation of an integer value in a particular base.


Rmb vs usd exchange rate The input value can be a string, for example to convert a hexadecimal

is 1. Gender identity disorder Likewise, the factorial() function returns 1 for any negative value. Usd gbp chart The maximum positive value for the input argument is 20; a value of 21 or greater overflows

Return type: bigint or decimal(p,s) depending on the type of the input argument fmod(double a, double b), fmod(float a, float b) Purpose: Returns the modulus of a floating-point number. Pounds to us dollars exchange rate Equivalent to the % arithmetic operator.

The following examples show operations with the fmod() function for values that cannot be represented precisely by the DOUBLE or FLOAT types, and thus are subject to rounding error. 1 usd to inr forecast fmod(9.9,3.0) returns a value slightly different than

particular the FNV-1a variation. Funny jokes for kids to tell at school This is not a perfect hash function: some combinations of values could produce the same result value. Future stock market returns It is not suitable for cryptographic use.

Similar input values of different types could produce different hash values, for example the same numeric value represented as SMALLINT or BIGINT, FLOAT or DOUBLE, or DECIMAL(5,2) or DECIMAL(20,5).

Added in: Impala 1.2.2 greatest(bigint a[, bigint b …]), greatest(double a[, double b …]), greatest(decimal(p,s) a[, decimal(p,s) b …]), greatest(string a[, string b

are promoted to DOUBLE; use CAST() when inserting into a smaller numeric column hex(bigint a), hex(string a) Purpose: Returns the hexadecimal representation of an integer value, or of the characters in a string.

interprets them as these special values. Usd currency exchange rate They can also be produced by certain arithmetic expressions; for example, pow(-1, 0.5) returns Infinity and 1/0 returns NaN. Exchange rate usd to inr history Or you can cast the literal values, such as CAST(‘nan’ AS

interprets them as these special values. Nzd vs usd forecast They can also be produced by certain arithmetic expressions; for example, pow(-1, 0.5) returns Infinity and 1/0 returns NaN. Stock market cnn news Or you can cast the literal values, such as CAST(‘nan’ AS

double b …]), least(decimal(p,s) a[, decimal(p,s) b …]), least(string a[, string b …]), least(timestamp a[, timestamp b …]) Purpose: Returns the smallest value from a list of expressions.

are promoted to DOUBLE; use CAST() when inserting into a smaller numeric column ln(double a), dlog1(double a) Purpose: Returns the natural logarithm of the argument.

are within the allowed range, before copying data or altering column definitions. Binary sms If not, switch to the next higher integral type or to a DECIMAL with sufficient

are within the allowed range, before copying data or altering column definitions. Nzd usd chart If not, switch to the next higher integral type or to a DECIMAL with sufficient

works the same way. Learning tutorials In the case of mod(9.9,3), the type conversion for the second argument results in the first argument being interpreted as DOUBLE, so to produce an accurate DECIMAL result requires casting the second argument or writing it as a DECIMAL

The following examples show how the fmod() function sometimes returns a negative value depending on the sign of its arguments, and the pmod() function returns the same value as fmod(), but sometimes with the sign flipped. The binary lab select fmod(-5,2);

Usage notes: Use abs() instead if you need to ensure all return values are positive. Hockey players club pow(double a, double p), power(double a, double p), dpow(double a, double p), fpow(double a, double p) Purpose: Returns the first argument raised to the power of the second argument.

Return type: double precision( numeric_expression) Purpose: Computes the precision (number of decimal digits) needed to represent the type of the argument expression as a DECIMAL value.

Typically used in combination with the scale() function, to determine the appropriate DECIMAL( precision, scale) type to declare in a CREATE TABLE statement or CAST()


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