openCypher in GSQL

DELETE

Delete graph elements — nodes and relationships.

Any node to be deleted must also have all associated relationships explicitly deleted.

DETACH DELETE

Writing Delete a node or set of nodes.

All associated relationships will automatically be deleted.

LIMIT

Reading sub-clause A sub-clause used to constrain the number of records in the output.

MATCH

Reading Specify the patterns to search for in the database.

MANDATORY MATCH

Reading Specify the patterns to search for in the database, and fail if no match is found.

ORDER BY [ASC[ENDING] DESC[ENDING]]

Reading sub-clause A sub-clause following

RETURN or WITH

Specifying that the output should be sorted in either ascending (the default) or descending order.

RETURN … [AS]

Projecting Defines what to include in the query result set.

SKIP

Reading/Writing A sub-clause defining from which record to start including the records in the output.

WITH … [AS]

Projecting Allows query parts to be chained together, piping the results from one to be used as starting points or criteria in the next.

See below for restrictions.

WHERE

Reading sub-clause A sub-clause used to add constraints to the patterns in a MATCH clause, or to filter the results of a WITH clause.

*

Mathematical Multiplication

+

Mathematical Addition

+

String Concatenation

+

List Concatenation

-

Mathematical Subtraction or unary minus

.

General Property access

/

Mathematical Division

<

Comparison Less than

< =

Comparison Less than or equal to

<>

Comparison Inequality

=

Comparison Equality

>

Comparison Greater than

>=

Comparison Greater than or equal to

AND

Boolean Conjunction

CONTAINS

String comparison Case-sensitive inclusion search

DISTINCT

General Duplicate removal

ENDS WITH

String comparison Case-sensitive suffix search

IN List

List element existence check

IS NOT NULL

Comparison Non-null check

IS NULL

Comparison null check

NOT

Boolean Negation

OR

Boolean Disjunction

STARTS WITH

String comparison Case-sensitive prefix search

XOR

Boolean Exclusive disjunction

[ ]

General Subscript (dynamic property access)

[ ]

List Subscript (accessing element(s) in a list)

^

Mathematical Exponentiation

right()

String Returns a string containing the specified number of rightmost characters of the original string.

reverse()

String Returns a string in which the order of all characters in the original string have been reversed.

lTrim()

String Returns the original string with leading whitespace removed.

replace()

String Returns a string in which all occurrences of a specified string in the original string have been replaced by another (specified) string.

rTrim()

String Returns the original string with trailing whitespace removed.

trim()

String Returns the original string with leading and trailing whitespace removed.

acos()

Trigonometric Returns the arccosine of a number in radians.

asin()

Trigonometric Returns the arcsine of a number in radians.

atan()

Trigonometric Returns the arctangent of a number in radians.

atan2()

Trigonometric Returns the arctangent2 of a set of coordinates in radians.

ceil()

Numeric Returns the smallest floating point number that is greater than or equal to a number and equal to a mathematical integer.

cot()

Trigonometric Returns the cotangent of a number.

degrees()

Trigonometric Converts radians to degrees.

exp()

Logarithmic Returns e^n, where e is the base of the natural logarithm, and n is the value of the argument expression.

floor()

Numeric Returns the largest floating point number that is less than or equal to a number and equal to a mathematical integer.

log()

Logarithmic Returns the natural logarithm of a number.

log10()

Logarithmic Returns the common logarithm (base 10) of a number.

pi()

Trigonometric Returns the mathematical constant pi.

radians()

Trigonometric Converts degrees to radians.

rand()

Numeric Returns a random floating point number in the range from 0 (inclusive) to 1 (exclusive); i.e. [0, 1).

round()

Numeric Returns the value of a number rounded to the nearest integer.

sign()

Numeric Returns the signum of a number: 0 if the number is 0, -1 for any negative number, and 1 for any positive number.

sin()

Trigonometric Returns the sine of a number.

sqrt()

Logarithmic Returns the square root of a number.

tan()

Trigonometric Returns the tangent of a number.

abs()

Numeric Returns the absolute value of a number.

avg()

Aggregating Returns the average of a set of values.

coalesce()

Scalar Returns the first non-null value in a list of expressions.

cos()

Trigonometric Returns the cosine of a number.

count()

Aggregating Returns the number of values or records.

max()

Aggregating Returns the maximum value in a set of values.

min()

Aggregating Returns the minimum value in a set of values.

sum()

Aggregating Returns the sum of a set of numeric values.

type()

Scalar Returns the string representation of the relationship type.

toLower()

String Returns the original string in lowercase.

toString()

String Converts an integer, float or boolean value to a string.

toUpper()

String Returns the original string in uppercase.

substring()

String Returns a substring of the original string, beginning with a 0-based index start and length.

e()

Logarithmic Returns the base of the natural logarithm, e.

timestamp()

Scalar Returns the difference, measured in milliseconds, between the current time and midnight, January 1, 1970 UTC.

stDev()

Aggregating Returns the standard deviation for the given value over a group for a sample of a population.

toBoolean()

Scalar Converts a string value to a boolean value.

toFloat()

Scalar Converts an integer or string value to a floating point number.

toInteger()

Scalar Converts a floating point or string value to an integer value.

CASE Expression

A generic conditional expression, similar to if/else statements available in other languages.