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GridGain Software Documentation

Numeric Functions

ABS

ABS (expression)

Parameters

  • expression - may be a column name, a result of another function, or a math operation.

Description

Returns the absolute value of an expression.

Example

Calculate an absolute value:

SELECT transfer_id, ABS (price) from Transfers;

ACOS

ACOS (expression)

Parameters

  • expression - may be a column name, a result of another function, or a math operation.

Description

Calculates the arc cosine. This method returns a double.

Example

Get arc cos value:

SELECT acos(angle) FROM Triangles;

ASIN

ASIN (expression)

Parameters

  • expression - may be a column name, a result of another function, or a math operation.

Description

Calculates the arc sine. This method returns a double.

Example

Calculate an arc sine:

SELECT asin(angle) FROM Triangles;

ATAN

ATAN (expression)

Parameters

  • expression - may be a column name, a result of another function, or a math operation.

Description

Calculates the arc tangent. This method returns a double.

Example

Get an arc tangent:

SELECT atan(angle) FROM Triangles;

COS

COS (expression)

Parameters

  • expression - may be a column name, a result of another function, or a math operation.

Description

Calculates the trigonometric cosine. This method returns a double.

Example

Get a cosine:

SELECT COS(angle) FROM Triangles;

COSH

COSH (expression)

Parameters

  • expression - may be a column name, a result of another function, or a math operation.

Description

Calculates the hyperbolic cosine. This method returns a double.

Example

Get an hyperbolic cosine:

SELECT HCOS(angle) FROM Triangles;

COT

COT (expression)

Parameters

  • expression - may be a column name, a result of another function, or a math operation.

Description

Calculates the trigonometric cotangent (1/TAN(ANGLE)). This method returns a double.

Example

Gets a​ trigonometric cotangent:

SELECT COT(angle) FROM Triangles;

SIN

SIN (expression)

Parameters

  • expression - may be a column name, a result of another function, or a math operation.

Description

Calculates the trigonometric sine. This method returns a double.

Example

Get a trigonometric sine:

SELECT SIN(angle) FROM Triangles;

SINH

SINH (expression)

Parameters

  • expression - may be a column name, a result of another function, or a math operation.

Description

Calculates the hyperbolic sine. This method returns a double.

Example

Get a hyperbolic sine:

SELECT SINH(angle) FROM Triangles;

TAN

TAN (expression)

Parameters

  • expression - may be a column name, a result of another function, or a math operation.

Description

Calculates the trigonometric tangent. This method returns a double.

Example

Get a trigonometric tangent:

SELECT TAN(angle) FROM Triangles;

TANH

TANH (expression)

Parameters

  • expression - may be a column name, a result of another function, or a math operation.

Description

Calculates the hyperbolic tangent. This method returns a double.

Example

Get a hyperbolic tangent:

SELECT TANH(angle) FROM Triangles;

ATAN2

ATAN2 (y, x)

Parameters

  • x and y - the arguments.

Description

Calculates the angle when converting the rectangular coordinates to polar coordinates. This method returns a double.

Example

Get a hyperbolic tangent:

SELECT ATAN2(X, Y) FROM Triangles;

BITAND

BITAND (y, x)

Parameters

  • x and y - the arguments.

Description

The bitwise AND operation. This method returns a long.

Example

SELECT BITAND(X, Y) FROM Triangles;

BITGET

BITGET (y, x)

Parameters

  • x and y - the arguments.

Description

Returns true if and only if the first parameter has a bit set in the position specified by the second parameter. This method returns a boolean. The second parameter is zero-indexed; the least significant bit has position 0.

Example

Check that 3rd bit is 1:

SELECT BITGET(X, 3) from Triangles;

BITOR

BITOR (y, x)

Parameters

  • x and y - the arguments.

Description

The bitwise OR operation. This method returns a long.

Example

Calculate OR between two fields:

SELECT BITGET(X, Y) from Triangles;

BITXOR

BITXOR (y, x)

Parameters

  • x and y - the arguments.

Description

The bitwise XOR operation. This method returns a long.

Example

Calculate XOR between two fields:

SELECT BITXOR(X, Y) FROM Triangles;

MOD

MOD (y, x)

Parameters

  • x and y - the arguments.

Description

The modulo operation. This method returns a long.

Example

Calculate MOD between two fields:

SELECT BITXOR(X, Y) FROM Triangles;

CEILING

CEIL (expression)
CEILING (expression)

Parameters

  • expression - any valid numeric expression.

Description

See also Java Math.ceil. This method returns a double.

Example

Calculate a ceiling price for items:

SELECT item_id, CEILING(price) FROM Items;

DEGREES

DEGREES (expression)

Parameters

  • expression - any valid numeric expression.

Description

See also Java Math.toDegrees. This method returns a double.

Example

Converts the argument value to degrees:

SELECT DEGREES(X) FROM Triangles;

EXP

EXP (expression)

Parameters

  • expression - any valid numeric expression.

Description

See also Java Math.exp. This method returns a double.

Example

Calculates exp:

SELECT EXP(X) FROM Triangles;

FLOOR

FLOOR (expression)

Parameters

  • expression - any valid numeric expression.

Description

See also Java Math.floor. This method returns a double.

Example

Calculates floor price:

SELECT FLOOR(X) FROM Items;

LOG

LOG (expression)
LN (expression)

Parameters

  • expression - any valid numeric expression.

Description

See also Java Math.log. This method returns a double.

Example

Calculates LOG:

SELECT LOG(X) from Items;

LOG10

LOG10 (expression)

Parameters

  • expression - any valid numeric expression.

Description

See also Java Math.log10 (in Java 5). This method returns a double.

Example

Calculate LOG10:

SELECT LOG(X) FROM Items;

RADIANS

RADIANS (expression)

Parameters

  • expression - any valid numeric expression.

Description

See also Java Math.toRadians. This method returns a double.

Example

Calculates RADIANS:

SELECT RADIANS(X) FROM Items;

SQRT

SQRT (expression)

Parameters

  • expression - any valid numeric expression.

Description

See also Java Math.sqrt. This method returns a double.

Example

Calculates SQRT:

SELECT SQRT(X) FROM Items;

PI

PI (expression)

Parameters

  • expression - any valid numeric expression.

Description

See also Java Math.PI. This method returns a double.

Example

Calculates PI:

SELECT PI(X) FROM Items;

POWER

POWER (X, Y)

Parameters

  • expression - any valid numeric expression.

Description

See also Java Math.pow. This method returns a double.

Example

Calculate the ​power of 2:

SELECT pow(2, n) FROM Rows;

RAND

{RAND | RANDOM} ([expression])

Parameters

  • expression - any valid numeric expression seeds the session’s random number generator.

Description

Calling the function without a parameter returns the next a pseudo random number. Calling it with a parameter seeds the session’s random number generator. This method returns a double between 0 (including) and 1 (excluding).

Example

Gets a random number for every play:

SELECT random() FROM Play;

RANDOM_UUID

{RANDOM_UUID | UUID} ()

Description

Returns a new UUID with 122 pseudo random bits.

Example

Gets random number for every Player:

SELECT UUID(),name FROM Player;

ROUND

ROUND ( expression [, precision] )

Parameters

  • expression - any valid numeric expression.

  • precision - the number of digits after the decimal to round to. Rounds to the nearest long if the number of digits if not set.

Description

Rounds to a number of digits, or to the nearest long if the number of digits if not set. This method returns a numeric (the same type as the input).

Example

Convert every Player’s age to an integer number:

SELECT name, ROUND(age) FROM Player;

ROUNDMAGIC

ROUNDMAGIC (expression)

Parameters

  • expression - any valid numeric expression.

Description

This function is good for rounding numbers, but it can be slow. It has special handling for numbers around 0. Only numbers smaller than or equal to +/-1000000000000 are supported. The value is converted to a String internally, and then the last last 4 characters are checked. '000x' becomes '0000' and '999x' becomes '999999', which is rounded automatically. This method returns a double.

Example

Round every Player’s age:

SELECT name, ROUNDMAGIC(AGE/3*3) FROM Player;

SECURE_RAND

SECURE_RAND (int)

Parameters

  • int - specifies the number​ of digits.

Description

Generate a number of cryptographically secure random numbers. This method returns bytes.

Example

Get a truly random number:

SELECT name, SECURE_RAND(10) FROM Player;

SIGN

SIGN (expression)

Parameters

  • expression - any valid numeric expression.

Description

Return -1 if the value is smaller 0, 0 if zero, and otherwise 1.

Example

Get a sign for every value:

SELECT name, SIGN(VALUE) FROM Player;

ENCRYPT

ENCRYPT (algorithmString , keyBytes , dataBytes)

Parameters

  • algorithmString - sets a supported AES algorithm.

  • keyBytes - sets a key.

  • dataBytes - sets data.

Description

Encrypt data using a key. The supported algorithm is AES. The block size is 16 bytes. This method returns bytes.

Example

Encrypt players name:

SELECT ENCRYPT('AES', '00', STRINGTOUTF8(Name)) FROM Player;

DECRYPT

DECRYPT (algorithmString , keyBytes , dataBytes)

Parameters

  • algorithmString - sets a supported AES algorithm.

  • keyBytes - sets a key.

  • dataBytes - sets data.

Description

Decrypts data using a key. The supported algorithm is AES. The block size is 16 bytes. This method returns bytes.

Example

Decrypt Players' names:

SELECT DECRYPT('AES', '00', '3fabb4de8f1ee2e97d7793bab2db1116'))) FROM Player;

TRUNCATE

{TRUNC | TRUNCATE} (\{\{numeric, digitsInt} | timestamp | date | timestampString})

Description

Truncates to a number of digits (to the next value closer to 0). This method returns a double. When used with a timestamp, truncates a timestamp to a date (day) value. When used with a date, truncates a date to a date (day) value less time part. When used with a timestamp as string, truncates a timestamp to a date (day) value.

Example

TRUNCATE(VALUE, 2);

COMPRESS

COMPRESS(dataBytes [, algorithmString])

Parameters

  • dataBytes - data to compress.

  • algorithmString - an algorithm to use for compression.

Description

Compress the data using the specified compression algorithm. Supported algorithms are: LZF (faster but lower compression; default), and DEFLATE (higher compression). Compression does not always reduce size. Very small objects and objects with little redundancy may get larger. This method returns bytes.

Example

COMPRESS(STRINGTOUTF8('Test'))

EXPAND

EXPAND(dataBytes)

Parameters

  • dataBytes - data to expand.

Description

Expand data that was compressed using the COMPRESS function. This method returns bytes.

Example

UTF8TOSTRING(EXPAND(COMPRESS(STRINGTOUTF8('Test'))))

ZERO

ZERO()

Description

Return the value 0. This function can be used even if numeric literals are disabled.

Example

ZERO()