文章目录
-
- 概念
- 数据展示
- [CQL语法使用（Cypher Query Language）](#CQL语法使用（Cypher Query Language）)
-
- 常用语法关键字汇总
- 节点创建create
- 节点检索match
- 条件过滤where
- 删除节点以及关系DELETE
- 删除节点或者关系的成员属性REMOVE
- 设置节点或者关系的属性SET
- [排序order by](#排序order by)
- 分页limit
- 常用内置函数
概念
概念
节点：关系、属性的数据
节点、关系都含有各自的属性
关系连接节点
属性是键值对
节点用圆圈表示、关系用方向连接节点
关系有单向、双向
关系包含开始节点、结束节点
标签：简单理解就是Java的类名
数据展示
修改图中的显示字段
默认： 使用 节点 或者 关系 中的 name 属性 进行展示 在图结果 中
CQL语法使用（Cypher Query Language）
作用： 类似关系型数据库的SQL，用于查询图中的节点、关系、统计等数据
官方文档介绍： https://neo4j.com/docs/cypher-manual/current/clauses/
特点
声明性模型匹配语言
遵循部分SQL语法，只要你用过SQL，CQL的语法就能熟悉
常用语法关键字汇总
| CQL命令 | 作用 |
|---|---|
| CREATE | 创建节点，关系和属性 |
| MATCH | 检索有关节点，关系和属性数据 |
| RETURN | 返回查询结果 |
| WHERE | 提供条件过滤检索数据 |
| DELETE | 删除节点和关系 |
| REMOVE | 删除节点和关系的属性 |
| ORDER BY | 排序检索数据 |
| SET | 添加或更新标签 |
| SKIP LIMIT | 分页， 从skip位置开始输出，最多输出limit个元素 |
| DISTINCT | 去重 |
| () | 节点，使用小括号进行表示节点内容信息 |
| [] | 关系，使用中括号进行表示关系内容信息 |
| -> | 关系与节点的关系方向，箭头表示 关系跟节点的顺序方向 |
节点创建create
java
//语法
// 实例名 == 就是官方说的 节点名
// 类名 == 就是官方说的 节点标签名
// 1. 新节点创建 == 多个类名使用冒号拼接
create (实例名:类名 {实例成员变量名1:实例成员变量值1, 实例成员变量名2:实例成员变量值2})
// 示例
create (test:Person:Movie:Beauty { name:'linrc'})
// 2. 节点以及节点关系创建
create (实例名1:类名 {实例成员变量名1:实例成员变量值1, 实例成员变量名2:实例成员变量值2})-[关系实例名:关系类名 {关系实例成员变量名1:关系实例成员变量值1, 关系实例成员变量名2:关系实例成员变量值2}]-(实例名2:类名 {实例成员变量名1:实例成员变量值1, 实例成员变量名2:实例成员变量值2})
//示例
create (person1:Person {name: 'linrc1'})-[:Colleagues {company:'电信总公司'}]->(person2:Person {name: 'linrc2'})
// 3. 已有节点 进行关系创建
match (实例名:类名 {实例成员变量名1:实例成员变量值1, 实例成员变量名2:实例成员变量值2}),(实例名2:类名 {实例成员变量名1:实例成员变量值1, 实例成员变量名2:实例成员变量值2})
create (实例名)-[关系实例名:关系类名 {关系实例成员变量名1:关系实例成员变量值1, 关系实例成员变量名2:关系实例成员变量值2}]-(实例名2)
//示例
match (person1:Person {name: 'linrc1'}),(person2:Person {name: 'linrc2'})
create (person1)-[friend:Friend {Intimacy:'99.99%'}]->(person2)
java
//官方示例数据
CREATE (TheMatrix:Movie {title:'The Matrix', released:1999, tagline:'Welcome to the Real World'})
CREATE (Keanu:Person {name:'Keanu Reeves', born:1964})
CREATE (Carrie:Person {name:'Carrie-Anne Moss', born:1967})
CREATE (Laurence:Person {name:'Laurence Fishburne', born:1961})
CREATE (Hugo:Person {name:'Hugo Weaving', born:1960})
CREATE (LillyW:Person {name:'Lilly Wachowski', born:1967})
CREATE (LanaW:Person {name:'Lana Wachowski', born:1965})
CREATE (JoelS:Person {name:'Joel Silver', born:1952})
CREATE
(Keanu)-[:ACTED_IN {roles:['Neo']}]->(TheMatrix),
(Carrie)-[:ACTED_IN {roles:['Trinity']}]->(TheMatrix),
(Laurence)-[:ACTED_IN {roles:['Morpheus']}]->(TheMatrix),
(Hugo)-[:ACTED_IN {roles:['Agent Smith']}]->(TheMatrix),
(LillyW)-[:DIRECTED]->(TheMatrix),
(LanaW)-[:DIRECTED]->(TheMatrix),
(JoelS)-[:PRODUCED]->(TheMatrix)
CREATE (Emil:Person {name:"Emil Eifrem", born:1978})
CREATE (Emil)-[:ACTED_IN {roles:["Emil"]}]->(TheMatrix)
CREATE (TheMatrixReloaded:Movie {title:'The Matrix Reloaded', released:2003, tagline:'Free your mind'})
CREATE
(Keanu)-[:ACTED_IN {roles:['Neo']}]->(TheMatrixReloaded),
(Carrie)-[:ACTED_IN {roles:['Trinity']}]->(TheMatrixReloaded),
(Laurence)-[:ACTED_IN {roles:['Morpheus']}]->(TheMatrixReloaded),
(Hugo)-[:ACTED_IN {roles:['Agent Smith']}]->(TheMatrixReloaded),
(LillyW)-[:DIRECTED]->(TheMatrixReloaded),
(LanaW)-[:DIRECTED]->(TheMatrixReloaded),
(JoelS)-[:PRODUCED]->(TheMatrixReloaded)
CREATE (TheMatrixRevolutions:Movie {title:'The Matrix Revolutions', released:2003, tagline:'Everything that has a beginning has an end'})
CREATE
(Keanu)-[:ACTED_IN {roles:['Neo']}]->(TheMatrixRevolutions),
(Carrie)-[:ACTED_IN {roles:['Trinity']}]->(TheMatrixRevolutions),
(Laurence)-[:ACTED_IN {roles:['Morpheus']}]->(TheMatrixRevolutions),
(Hugo)-[:ACTED_IN {roles:['Agent Smith']}]->(TheMatrixRevolutions),
(LillyW)-[:DIRECTED]->(TheMatrixRevolutions),
(LanaW)-[:DIRECTED]->(TheMatrixRevolutions),
(JoelS)-[:PRODUCED]->(TheMatrixRevolutions)
CREATE (TheDevilsAdvocate:Movie {title:"The Devil's Advocate", released:1997, tagline:'Evil has its winning ways'})
CREATE (Charlize:Person {name:'Charlize Theron', born:1975})
CREATE (Al:Person {name:'Al Pacino', born:1940})
CREATE (Taylor:Person {name:'Taylor Hackford', born:1944})
CREATE
(Keanu)-[:ACTED_IN {roles:['Kevin Lomax']}]->(TheDevilsAdvocate),
(Charlize)-[:ACTED_IN {roles:['Mary Ann Lomax']}]->(TheDevilsAdvocate),
(Al)-[:ACTED_IN {roles:['John Milton']}]->(TheDevilsAdvocate),
(Taylor)-[:DIRECTED]->(TheDevilsAdvocate)
CREATE (AFewGoodMen:Movie {title:"A Few Good Men", released:1992, tagline:"In the heart of the nation's capital, in a courthouse of the U.S. government, one man will stop at nothing to keep his honor, and one will stop at nothing to find the truth."})
CREATE (TomC:Person {name:'Tom Cruise', born:1962})
CREATE (JackN:Person {name:'Jack Nicholson', born:1937})
CREATE (DemiM:Person {name:'Demi Moore', born:1962})
CREATE (KevinB:Person {name:'Kevin Bacon', born:1958})
CREATE (KieferS:Person {name:'Kiefer Sutherland', born:1966})
CREATE (NoahW:Person {name:'Noah Wyle', born:1971})
CREATE (CubaG:Person {name:'Cuba Gooding Jr.', born:1968})
CREATE (KevinP:Person {name:'Kevin Pollak', born:1957})
CREATE (JTW:Person {name:'J.T. Walsh', born:1943})
CREATE (JamesM:Person {name:'James Marshall', born:1967})
CREATE (ChristopherG:Person {name:'Christopher Guest', born:1948})
CREATE (RobR:Person {name:'Rob Reiner', born:1947})
CREATE (AaronS:Person {name:'Aaron Sorkin', born:1961})
CREATE
(TomC)-[:ACTED_IN {roles:['Lt. Daniel Kaffee']}]->(AFewGoodMen),
(JackN)-[:ACTED_IN {roles:['Col. Nathan R. Jessup']}]->(AFewGoodMen),
(DemiM)-[:ACTED_IN {roles:['Lt. Cdr. JoAnne Galloway']}]->(AFewGoodMen),
(KevinB)-[:ACTED_IN {roles:['Capt. Jack Ross']}]->(AFewGoodMen),
(KieferS)-[:ACTED_IN {roles:['Lt. Jonathan Kendrick']}]->(AFewGoodMen),
(NoahW)-[:ACTED_IN {roles:['Cpl. Jeffrey Barnes']}]->(AFewGoodMen),
(CubaG)-[:ACTED_IN {roles:['Cpl. Carl Hammaker']}]->(AFewGoodMen),
(KevinP)-[:ACTED_IN {roles:['Lt. Sam Weinberg']}]->(AFewGoodMen),
(JTW)-[:ACTED_IN {roles:['Lt. Col. Matthew Andrew Markinson']}]->(AFewGoodMen),
(JamesM)-[:ACTED_IN {roles:['Pfc. Louden Downey']}]->(AFewGoodMen),
(ChristopherG)-[:ACTED_IN {roles:['Dr. Stone']}]->(AFewGoodMen),
(AaronS)-[:ACTED_IN {roles:['Man in Bar']}]->(AFewGoodMen),
(RobR)-[:DIRECTED]->(AFewGoodMen),
(AaronS)-[:WROTE]->(AFewGoodMen)
CREATE (TopGun:Movie {title:"Top Gun", released:1986, tagline:'I feel the need, the need for speed.'})
CREATE (KellyM:Person {name:'Kelly McGillis', born:1957})
CREATE (ValK:Person {name:'Val Kilmer', born:1959})
CREATE (AnthonyE:Person {name:'Anthony Edwards', born:1962})
CREATE (TomS:Person {name:'Tom Skerritt', born:1933})
CREATE (MegR:Person {name:'Meg Ryan', born:1961})
CREATE (TonyS:Person {name:'Tony Scott', born:1944})
CREATE (JimC:Person {name:'Jim Cash', born:1941})
CREATE
(TomC)-[:ACTED_IN {roles:['Maverick']}]->(TopGun),
(KellyM)-[:ACTED_IN {roles:['Charlie']}]->(TopGun),
(ValK)-[:ACTED_IN {roles:['Iceman']}]->(TopGun),
(AnthonyE)-[:ACTED_IN {roles:['Goose']}]->(TopGun),
(TomS)-[:ACTED_IN {roles:['Viper']}]->(TopGun),
(MegR)-[:ACTED_IN {roles:['Carole']}]->(TopGun),
(TonyS)-[:DIRECTED]->(TopGun),
(JimC)-[:WROTE]->(TopGun)
CREATE (JerryMaguire:Movie {title:'Jerry Maguire', released:2000, tagline:'The rest of his life begins now.'})
CREATE (ReneeZ:Person {name:'Renee Zellweger', born:1969})
CREATE (KellyP:Person {name:'Kelly Preston', born:1962})
CREATE (JerryO:Person {name:"Jerry O'Connell", born:1974})
CREATE (JayM:Person {name:'Jay Mohr', born:1970})
CREATE (BonnieH:Person {name:'Bonnie Hunt', born:1961})
CREATE (ReginaK:Person {name:'Regina King', born:1971})
CREATE (JonathanL:Person {name:'Jonathan Lipnicki', born:1996})
CREATE (CameronC:Person {name:'Cameron Crowe', born:1957})
CREATE
(TomC)-[:ACTED_IN {roles:['Jerry Maguire']}]->(JerryMaguire),
(CubaG)-[:ACTED_IN {roles:['Rod Tidwell']}]->(JerryMaguire),
(ReneeZ)-[:ACTED_IN {roles:['Dorothy Boyd']}]->(JerryMaguire),
(KellyP)-[:ACTED_IN {roles:['Avery Bishop']}]->(JerryMaguire),
(JerryO)-[:ACTED_IN {roles:['Frank Cushman']}]->(JerryMaguire),
(JayM)-[:ACTED_IN {roles:['Bob Sugar']}]->(JerryMaguire),
(BonnieH)-[:ACTED_IN {roles:['Laurel Boyd']}]->(JerryMaguire),
(ReginaK)-[:ACTED_IN {roles:['Marcee Tidwell']}]->(JerryMaguire),
(JonathanL)-[:ACTED_IN {roles:['Ray Boyd']}]->(JerryMaguire),
(CameronC)-[:DIRECTED]->(JerryMaguire),
(CameronC)-[:PRODUCED]->(JerryMaguire),
(CameronC)-[:WROTE]->(JerryMaguire)
CREATE (StandByMe:Movie {title:"Stand By Me", released:1986, tagline:"For some, it's the last real taste of innocence, and the first real taste of life. But for everyone, it's the time that memories are made of."})
CREATE (RiverP:Person {name:'River Phoenix', born:1970})
CREATE (CoreyF:Person {name:'Corey Feldman', born:1971})
CREATE (WilW:Person {name:'Wil Wheaton', born:1972})
CREATE (JohnC:Person {name:'John Cusack', born:1966})
CREATE (MarshallB:Person {name:'Marshall Bell', born:1942})
CREATE
(WilW)-[:ACTED_IN {roles:['Gordie Lachance']}]->(StandByMe),
(RiverP)-[:ACTED_IN {roles:['Chris Chambers']}]->(StandByMe),
(JerryO)-[:ACTED_IN {roles:['Vern Tessio']}]->(StandByMe),
(CoreyF)-[:ACTED_IN {roles:['Teddy Duchamp']}]->(StandByMe),
(JohnC)-[:ACTED_IN {roles:['Denny Lachance']}]->(StandByMe),
(KieferS)-[:ACTED_IN {roles:['Ace Merrill']}]->(StandByMe),
(MarshallB)-[:ACTED_IN {roles:['Mr. Lachance']}]->(StandByMe),
(RobR)-[:DIRECTED]->(StandByMe)
CREATE (AsGoodAsItGets:Movie {title:'As Good as It Gets', released:1997, tagline:'A comedy from the heart that goes for the throat.'})
CREATE (HelenH:Person {name:'Helen Hunt', born:1963})
CREATE (GregK:Person {name:'Greg Kinnear', born:1963})
CREATE (JamesB:Person {name:'James L. Brooks', born:1940})
CREATE
(JackN)-[:ACTED_IN {roles:['Melvin Udall']}]->(AsGoodAsItGets),
(HelenH)-[:ACTED_IN {roles:['Carol Connelly']}]->(AsGoodAsItGets),
(GregK)-[:ACTED_IN {roles:['Simon Bishop']}]->(AsGoodAsItGets),
(CubaG)-[:ACTED_IN {roles:['Frank Sachs']}]->(AsGoodAsItGets),
(JamesB)-[:DIRECTED]->(AsGoodAsItGets)
CREATE (WhatDreamsMayCome:Movie {title:'What Dreams May Come', released:1998, tagline:'After life there is more. The end is just the beginning.'})
CREATE (AnnabellaS:Person {name:'Annabella Sciorra', born:1960})
CREATE (MaxS:Person {name:'Max von Sydow', born:1929})
CREATE (WernerH:Person {name:'Werner Herzog', born:1942})
CREATE (Robin:Person {name:'Robin Williams', born:1951})
CREATE (VincentW:Person {name:'Vincent Ward', born:1956})
CREATE
(Robin)-[:ACTED_IN {roles:['Chris Nielsen']}]->(WhatDreamsMayCome),
(CubaG)-[:ACTED_IN {roles:['Albert Lewis']}]->(WhatDreamsMayCome),
(AnnabellaS)-[:ACTED_IN {roles:['Annie Collins-Nielsen']}]->(WhatDreamsMayCome),
(MaxS)-[:ACTED_IN {roles:['The Tracker']}]->(WhatDreamsMayCome),
(WernerH)-[:ACTED_IN {roles:['The Face']}]->(WhatDreamsMayCome),
(VincentW)-[:DIRECTED]->(WhatDreamsMayCome)
CREATE (SnowFallingonCedars:Movie {title:'Snow Falling on Cedars', released:1999, tagline:'First loves last. Forever.'})
CREATE (EthanH:Person {name:'Ethan Hawke', born:1970})
CREATE (RickY:Person {name:'Rick Yune', born:1971})
CREATE (JamesC:Person {name:'James Cromwell', born:1940})
CREATE (ScottH:Person {name:'Scott Hicks', born:1953})
CREATE
(EthanH)-[:ACTED_IN {roles:['Ishmael Chambers']}]->(SnowFallingonCedars),
(RickY)-[:ACTED_IN {roles:['Kazuo Miyamoto']}]->(SnowFallingonCedars),
(MaxS)-[:ACTED_IN {roles:['Nels Gudmundsson']}]->(SnowFallingonCedars),
(JamesC)-[:ACTED_IN {roles:['Judge Fielding']}]->(SnowFallingonCedars),
(ScottH)-[:DIRECTED]->(SnowFallingonCedars)
CREATE (YouveGotMail:Movie {title:"You've Got Mail", released:1998, tagline:'At odds in life... in love on-line.'})
CREATE (ParkerP:Person {name:'Parker Posey', born:1968})
CREATE (DaveC:Person {name:'Dave Chappelle', born:1973})
CREATE (SteveZ:Person {name:'Steve Zahn', born:1967})
CREATE (TomH:Person {name:'Tom Hanks', born:1956})
CREATE (NoraE:Person {name:'Nora Ephron', born:1941})
CREATE
(TomH)-[:ACTED_IN {roles:['Joe Fox']}]->(YouveGotMail),
(MegR)-[:ACTED_IN {roles:['Kathleen Kelly']}]->(YouveGotMail),
(GregK)-[:ACTED_IN {roles:['Frank Navasky']}]->(YouveGotMail),
(ParkerP)-[:ACTED_IN {roles:['Patricia Eden']}]->(YouveGotMail),
(DaveC)-[:ACTED_IN {roles:['Kevin Jackson']}]->(YouveGotMail),
(SteveZ)-[:ACTED_IN {roles:['George Pappas']}]->(YouveGotMail),
(NoraE)-[:DIRECTED]->(YouveGotMail)
CREATE (SleeplessInSeattle:Movie {title:'Sleepless in Seattle', released:1993, tagline:'What if someone you never met, someone you never saw, someone you never knew was the only someone for you?'})
CREATE (RitaW:Person {name:'Rita Wilson', born:1956})
CREATE (BillPull:Person {name:'Bill Pullman', born:1953})
CREATE (VictorG:Person {name:'Victor Garber', born:1949})
CREATE (RosieO:Person {name:"Rosie O'Donnell", born:1962})
CREATE
(TomH)-[:ACTED_IN {roles:['Sam Baldwin']}]->(SleeplessInSeattle),
(MegR)-[:ACTED_IN {roles:['Annie Reed']}]->(SleeplessInSeattle),
(RitaW)-[:ACTED_IN {roles:['Suzy']}]->(SleeplessInSeattle),
(BillPull)-[:ACTED_IN {roles:['Walter']}]->(SleeplessInSeattle),
(VictorG)-[:ACTED_IN {roles:['Greg']}]->(SleeplessInSeattle),
(RosieO)-[:ACTED_IN {roles:['Becky']}]->(SleeplessInSeattle),
(NoraE)-[:DIRECTED]->(SleeplessInSeattle)
CREATE (JoeVersustheVolcano:Movie {title:'Joe Versus the Volcano', released:1990, tagline:'A story of love, lava and burning desire.'})
CREATE (JohnS:Person {name:'John Patrick Stanley', born:1950})
CREATE (Nathan:Person {name:'Nathan Lane', born:1956})
CREATE
(TomH)-[:ACTED_IN {roles:['Joe Banks']}]->(JoeVersustheVolcano),
(MegR)-[:ACTED_IN {roles:['DeDe', 'Angelica Graynamore', 'Patricia Graynamore']}]->(JoeVersustheVolcano),
(Nathan)-[:ACTED_IN {roles:['Baw']}]->(JoeVersustheVolcano),
(JohnS)-[:DIRECTED]->(JoeVersustheVolcano)
CREATE (WhenHarryMetSally:Movie {title:'When Harry Met Sally', released:1998, tagline:'Can two friends sleep together and still love each other in the morning?'})
CREATE (BillyC:Person {name:'Billy Crystal', born:1948})
CREATE (CarrieF:Person {name:'Carrie Fisher', born:1956})
CREATE (BrunoK:Person {name:'Bruno Kirby', born:1949})
CREATE
(BillyC)-[:ACTED_IN {roles:['Harry Burns']}]->(WhenHarryMetSally),
(MegR)-[:ACTED_IN {roles:['Sally Albright']}]->(WhenHarryMetSally),
(CarrieF)-[:ACTED_IN {roles:['Marie']}]->(WhenHarryMetSally),
(BrunoK)-[:ACTED_IN {roles:['Jess']}]->(WhenHarryMetSally),
(RobR)-[:DIRECTED]->(WhenHarryMetSally),
(RobR)-[:PRODUCED]->(WhenHarryMetSally),
(NoraE)-[:PRODUCED]->(WhenHarryMetSally),
(NoraE)-[:WROTE]->(WhenHarryMetSally)
CREATE (ThatThingYouDo:Movie {title:'That Thing You Do', released:1996, tagline:'In every life there comes a time when that thing you dream becomes that thing you do'})
CREATE (LivT:Person {name:'Liv Tyler', born:1977})
CREATE
(TomH)-[:ACTED_IN {roles:['Mr. White']}]->(ThatThingYouDo),
(LivT)-[:ACTED_IN {roles:['Faye Dolan']}]->(ThatThingYouDo),
(Charlize)-[:ACTED_IN {roles:['Tina']}]->(ThatThingYouDo),
(TomH)-[:DIRECTED]->(ThatThingYouDo)
CREATE (TheReplacements:Movie {title:'The Replacements', released:2000, tagline:'Pain heals, Chicks dig scars... Glory lasts forever'})
CREATE (Brooke:Person {name:'Brooke Langton', born:1970})
CREATE (Gene:Person {name:'Gene Hackman', born:1930})
CREATE (Orlando:Person {name:'Orlando Jones', born:1968})
CREATE (Howard:Person {name:'Howard Deutch', born:1950})
CREATE
(Keanu)-[:ACTED_IN {roles:['Shane Falco']}]->(TheReplacements),
(Brooke)-[:ACTED_IN {roles:['Annabelle Farrell']}]->(TheReplacements),
(Gene)-[:ACTED_IN {roles:['Jimmy McGinty']}]->(TheReplacements),
(Orlando)-[:ACTED_IN {roles:['Clifford Franklin']}]->(TheReplacements),
(Howard)-[:DIRECTED]->(TheReplacements)
CREATE (RescueDawn:Movie {title:'RescueDawn', released:2006, tagline:"Based on the extraordinary true story of one man's fight for freedom"})
CREATE (ChristianB:Person {name:'Christian Bale', born:1974})
CREATE (ZachG:Person {name:'Zach Grenier', born:1954})
CREATE
(MarshallB)-[:ACTED_IN {roles:['Admiral']}]->(RescueDawn),
(ChristianB)-[:ACTED_IN {roles:['Dieter Dengler']}]->(RescueDawn),
(ZachG)-[:ACTED_IN {roles:['Squad Leader']}]->(RescueDawn),
(SteveZ)-[:ACTED_IN {roles:['Duane']}]->(RescueDawn),
(WernerH)-[:DIRECTED]->(RescueDawn)
CREATE (TheBirdcage:Movie {title:'The Birdcage', released:1996, tagline:'Come as you are'})
CREATE (MikeN:Person {name:'Mike Nichols', born:1931})
CREATE
(Robin)-[:ACTED_IN {roles:['Armand Goldman']}]->(TheBirdcage),
(Nathan)-[:ACTED_IN {roles:['Albert Goldman']}]->(TheBirdcage),
(Gene)-[:ACTED_IN {roles:['Sen. Kevin Keeley']}]->(TheBirdcage),
(MikeN)-[:DIRECTED]->(TheBirdcage)
CREATE (Unforgiven:Movie {title:'Unforgiven', released:1992, tagline:"It's a hell of a thing, killing a man"})
CREATE (RichardH:Person {name:'Richard Harris', born:1930})
CREATE (ClintE:Person {name:'Clint Eastwood', born:1930})
CREATE
(RichardH)-[:ACTED_IN {roles:['English Bob']}]->(Unforgiven),
(ClintE)-[:ACTED_IN {roles:['Bill Munny']}]->(Unforgiven),
(Gene)-[:ACTED_IN {roles:['Little Bill Daggett']}]->(Unforgiven),
(ClintE)-[:DIRECTED]->(Unforgiven)
CREATE (JohnnyMnemonic:Movie {title:'Johnny Mnemonic', released:1995, tagline:'The hottest data on earth. In the coolest head in town'})
CREATE (Takeshi:Person {name:'Takeshi Kitano', born:1947})
CREATE (Dina:Person {name:'Dina Meyer', born:1968})
CREATE (IceT:Person {name:'Ice-T', born:1958})
CREATE (RobertL:Person {name:'Robert Longo', born:1953})
CREATE
(Keanu)-[:ACTED_IN {roles:['Johnny Mnemonic']}]->(JohnnyMnemonic),
(Takeshi)-[:ACTED_IN {roles:['Takahashi']}]->(JohnnyMnemonic),
(Dina)-[:ACTED_IN {roles:['Jane']}]->(JohnnyMnemonic),
(IceT)-[:ACTED_IN {roles:['J-Bone']}]->(JohnnyMnemonic),
(RobertL)-[:DIRECTED]->(JohnnyMnemonic)
CREATE (CloudAtlas:Movie {title:'Cloud Atlas', released:2012, tagline:'Everything is connected'})
CREATE (HalleB:Person {name:'Halle Berry', born:1966})
CREATE (JimB:Person {name:'Jim Broadbent', born:1949})
CREATE (TomT:Person {name:'Tom Tykwer', born:1965})
CREATE (DavidMitchell:Person {name:'David Mitchell', born:1969})
CREATE (StefanArndt:Person {name:'Stefan Arndt', born:1961})
CREATE
(TomH)-[:ACTED_IN {roles:['Zachry', 'Dr. Henry Goose', 'Isaac Sachs', 'Dermot Hoggins']}]->(CloudAtlas),
(Hugo)-[:ACTED_IN {roles:['Bill Smoke', 'Haskell Moore', 'Tadeusz Kesselring', 'Nurse Noakes', 'Boardman Mephi', 'Old Georgie']}]->(CloudAtlas),
(HalleB)-[:ACTED_IN {roles:['Luisa Rey', 'Jocasta Ayrs', 'Ovid', 'Meronym']}]->(CloudAtlas),
(JimB)-[:ACTED_IN {roles:['Vyvyan Ayrs', 'Captain Molyneux', 'Timothy Cavendish']}]->(CloudAtlas),
(TomT)-[:DIRECTED]->(CloudAtlas),
(LillyW)-[:DIRECTED]->(CloudAtlas),
(LanaW)-[:DIRECTED]->(CloudAtlas),
(DavidMitchell)-[:WROTE]->(CloudAtlas),
(StefanArndt)-[:PRODUCED]->(CloudAtlas)
CREATE (TheDaVinciCode:Movie {title:'The Da Vinci Code', released:2006, tagline:'Break The Codes'})
CREATE (IanM:Person {name:'Ian McKellen', born:1939})
CREATE (AudreyT:Person {name:'Audrey Tautou', born:1976})
CREATE (PaulB:Person {name:'Paul Bettany', born:1971})
CREATE (RonH:Person {name:'Ron Howard', born:1954})
CREATE
(TomH)-[:ACTED_IN {roles:['Dr. Robert Langdon']}]->(TheDaVinciCode),
(IanM)-[:ACTED_IN {roles:['Sir Leight Teabing']}]->(TheDaVinciCode),
(AudreyT)-[:ACTED_IN {roles:['Sophie Neveu']}]->(TheDaVinciCode),
(PaulB)-[:ACTED_IN {roles:['Silas']}]->(TheDaVinciCode),
(RonH)-[:DIRECTED]->(TheDaVinciCode)
CREATE (VforVendetta:Movie {title:'V for Vendetta', released:2006, tagline:'Freedom! Forever!'})
CREATE (NatalieP:Person {name:'Natalie Portman', born:1981})
CREATE (StephenR:Person {name:'Stephen Rea', born:1946})
CREATE (JohnH:Person {name:'John Hurt', born:1940})
CREATE (BenM:Person {name: 'Ben Miles', born:1967})
CREATE
(Hugo)-[:ACTED_IN {roles:['V']}]->(VforVendetta),
(NatalieP)-[:ACTED_IN {roles:['Evey Hammond']}]->(VforVendetta),
(StephenR)-[:ACTED_IN {roles:['Eric Finch']}]->(VforVendetta),
(JohnH)-[:ACTED_IN {roles:['High Chancellor Adam Sutler']}]->(VforVendetta),
(BenM)-[:ACTED_IN {roles:['Dascomb']}]->(VforVendetta),
(JamesM)-[:DIRECTED]->(VforVendetta),
(LillyW)-[:PRODUCED]->(VforVendetta),
(LanaW)-[:PRODUCED]->(VforVendetta),
(JoelS)-[:PRODUCED]->(VforVendetta),
(LillyW)-[:WROTE]->(VforVendetta),
(LanaW)-[:WROTE]->(VforVendetta)
CREATE (SpeedRacer:Movie {title:'Speed Racer', released:2008, tagline:'Speed has no limits'})
CREATE (EmileH:Person {name:'Emile Hirsch', born:1985})
CREATE (JohnG:Person {name:'John Goodman', born:1960})
CREATE (SusanS:Person {name:'Susan Sarandon', born:1946})
CREATE (MatthewF:Person {name:'Matthew Fox', born:1966})
CREATE (ChristinaR:Person {name:'Christina Ricci', born:1980})
CREATE (Rain:Person {name:'Rain', born:1982})
CREATE
(EmileH)-[:ACTED_IN {roles:['Speed Racer']}]->(SpeedRacer),
(JohnG)-[:ACTED_IN {roles:['Pops']}]->(SpeedRacer),
(SusanS)-[:ACTED_IN {roles:['Mom']}]->(SpeedRacer),
(MatthewF)-[:ACTED_IN {roles:['Racer X']}]->(SpeedRacer),
(ChristinaR)-[:ACTED_IN {roles:['Trixie']}]->(SpeedRacer),
(Rain)-[:ACTED_IN {roles:['Taejo Togokahn']}]->(SpeedRacer),
(BenM)-[:ACTED_IN {roles:['Cass Jones']}]->(SpeedRacer),
(LillyW)-[:DIRECTED]->(SpeedRacer),
(LanaW)-[:DIRECTED]->(SpeedRacer),
(LillyW)-[:WROTE]->(SpeedRacer),
(LanaW)-[:WROTE]->(SpeedRacer),
(JoelS)-[:PRODUCED]->(SpeedRacer)
CREATE (NinjaAssassin:Movie {title:'Ninja Assassin', released:2009, tagline:'Prepare to enter a secret world of assassins'})
CREATE (NaomieH:Person {name:'Naomie Harris'})
CREATE
(Rain)-[:ACTED_IN {roles:['Raizo']}]->(NinjaAssassin),
(NaomieH)-[:ACTED_IN {roles:['Mika Coretti']}]->(NinjaAssassin),
(RickY)-[:ACTED_IN {roles:['Takeshi']}]->(NinjaAssassin),
(BenM)-[:ACTED_IN {roles:['Ryan Maslow']}]->(NinjaAssassin),
(JamesM)-[:DIRECTED]->(NinjaAssassin),
(LillyW)-[:PRODUCED]->(NinjaAssassin),
(LanaW)-[:PRODUCED]->(NinjaAssassin),
(JoelS)-[:PRODUCED]->(NinjaAssassin)
CREATE (TheGreenMile:Movie {title:'The Green Mile', released:1999, tagline:"Walk a mile you'll never forget."})
CREATE (MichaelD:Person {name:'Michael Clarke Duncan', born:1957})
CREATE (DavidM:Person {name:'David Morse', born:1953})
CREATE (SamR:Person {name:'Sam Rockwell', born:1968})
CREATE (GaryS:Person {name:'Gary Sinise', born:1955})
CREATE (PatriciaC:Person {name:'Patricia Clarkson', born:1959})
CREATE (FrankD:Person {name:'Frank Darabont', born:1959})
CREATE
(TomH)-[:ACTED_IN {roles:['Paul Edgecomb']}]->(TheGreenMile),
(MichaelD)-[:ACTED_IN {roles:['John Coffey']}]->(TheGreenMile),
(DavidM)-[:ACTED_IN {roles:['Brutus "Brutal" Howell']}]->(TheGreenMile),
(BonnieH)-[:ACTED_IN {roles:['Jan Edgecomb']}]->(TheGreenMile),
(JamesC)-[:ACTED_IN {roles:['Warden Hal Moores']}]->(TheGreenMile),
(SamR)-[:ACTED_IN {roles:['"Wild Bill" Wharton']}]->(TheGreenMile),
(GaryS)-[:ACTED_IN {roles:['Burt Hammersmith']}]->(TheGreenMile),
(PatriciaC)-[:ACTED_IN {roles:['Melinda Moores']}]->(TheGreenMile),
(FrankD)-[:DIRECTED]->(TheGreenMile)
CREATE (FrostNixon:Movie {title:'Frost/Nixon', released:2008, tagline:'400 million people were waiting for the truth.'})
CREATE (FrankL:Person {name:'Frank Langella', born:1938})
CREATE (MichaelS:Person {name:'Michael Sheen', born:1969})
CREATE (OliverP:Person {name:'Oliver Platt', born:1960})
CREATE
(FrankL)-[:ACTED_IN {roles:['Richard Nixon']}]->(FrostNixon),
(MichaelS)-[:ACTED_IN {roles:['David Frost']}]->(FrostNixon),
(KevinB)-[:ACTED_IN {roles:['Jack Brennan']}]->(FrostNixon),
(OliverP)-[:ACTED_IN {roles:['Bob Zelnick']}]->(FrostNixon),
(SamR)-[:ACTED_IN {roles:['James Reston, Jr.']}]->(FrostNixon),
(RonH)-[:DIRECTED]->(FrostNixon)
CREATE (Hoffa:Movie {title:'Hoffa', released:1992, tagline:"He didn't want law. He wanted justice."})
CREATE (DannyD:Person {name:'Danny DeVito', born:1944})
CREATE (JohnR:Person {name:'John C. Reilly', born:1965})
CREATE
(JackN)-[:ACTED_IN {roles:['Hoffa']}]->(Hoffa),
(DannyD)-[:ACTED_IN {roles:['Robert "Bobby" Ciaro']}]->(Hoffa),
(JTW)-[:ACTED_IN {roles:['Frank Fitzsimmons']}]->(Hoffa),
(JohnR)-[:ACTED_IN {roles:['Peter "Pete" Connelly']}]->(Hoffa),
(DannyD)-[:DIRECTED]->(Hoffa)
CREATE (Apollo13:Movie {title:'Apollo 13', released:1995, tagline:'Houston, we have a problem.'})
CREATE (EdH:Person {name:'Ed Harris', born:1950})
CREATE (BillPax:Person {name:'Bill Paxton', born:1955})
CREATE
(TomH)-[:ACTED_IN {roles:['Jim Lovell']}]->(Apollo13),
(KevinB)-[:ACTED_IN {roles:['Jack Swigert']}]->(Apollo13),
(EdH)-[:ACTED_IN {roles:['Gene Kranz']}]->(Apollo13),
(BillPax)-[:ACTED_IN {roles:['Fred Haise']}]->(Apollo13),
(GaryS)-[:ACTED_IN {roles:['Ken Mattingly']}]->(Apollo13),
(RonH)-[:DIRECTED]->(Apollo13)
CREATE (Twister:Movie {title:'Twister', released:1996, tagline:"Don't Breathe. Don't Look Back."})
CREATE (PhilipH:Person {name:'Philip Seymour Hoffman', born:1967})
CREATE (JanB:Person {name:'Jan de Bont', born:1943})
CREATE
(BillPax)-[:ACTED_IN {roles:['Bill Harding']}]->(Twister),
(HelenH)-[:ACTED_IN {roles:['Dr. Jo Harding']}]->(Twister),
(ZachG)-[:ACTED_IN {roles:['Eddie']}]->(Twister),
(PhilipH)-[:ACTED_IN {roles:['Dustin "Dusty" Davis']}]->(Twister),
(JanB)-[:DIRECTED]->(Twister)
CREATE (CastAway:Movie {title:'Cast Away', released:2000, tagline:'At the edge of the world, his journey begins.'})
CREATE (RobertZ:Person {name:'Robert Zemeckis', born:1951})
CREATE
(TomH)-[:ACTED_IN {roles:['Chuck Noland']}]->(CastAway),
(HelenH)-[:ACTED_IN {roles:['Kelly Frears']}]->(CastAway),
(RobertZ)-[:DIRECTED]->(CastAway)
CREATE (OneFlewOvertheCuckoosNest:Movie {title:"One Flew Over the Cuckoo's Nest", released:1975, tagline:"If he's crazy, what does that make you?"})
CREATE (MilosF:Person {name:'Milos Forman', born:1932})
CREATE
(JackN)-[:ACTED_IN {roles:['Randle McMurphy']}]->(OneFlewOvertheCuckoosNest),
(DannyD)-[:ACTED_IN {roles:['Martini']}]->(OneFlewOvertheCuckoosNest),
(MilosF)-[:DIRECTED]->(OneFlewOvertheCuckoosNest)
CREATE (SomethingsGottaGive:Movie {title:"Something's Gotta Give", released:2003})
CREATE (DianeK:Person {name:'Diane Keaton', born:1946})
CREATE (NancyM:Person {name:'Nancy Meyers', born:1949})
CREATE
(JackN)-[:ACTED_IN {roles:['Harry Sanborn']}]->(SomethingsGottaGive),
(DianeK)-[:ACTED_IN {roles:['Erica Barry']}]->(SomethingsGottaGive),
(Keanu)-[:ACTED_IN {roles:['Julian Mercer']}]->(SomethingsGottaGive),
(NancyM)-[:DIRECTED]->(SomethingsGottaGive),
(NancyM)-[:PRODUCED]->(SomethingsGottaGive),
(NancyM)-[:WROTE]->(SomethingsGottaGive)
CREATE (BicentennialMan:Movie {title:'Bicentennial Man', released:1999, tagline:"One robot's 200 year journey to become an ordinary man."})
CREATE (ChrisC:Person {name:'Chris Columbus', born:1958})
CREATE
(Robin)-[:ACTED_IN {roles:['Andrew Marin']}]->(BicentennialMan),
(OliverP)-[:ACTED_IN {roles:['Rupert Burns']}]->(BicentennialMan),
(ChrisC)-[:DIRECTED]->(BicentennialMan)
CREATE (CharlieWilsonsWar:Movie {title:"Charlie Wilson's War", released:2007, tagline:"A stiff drink. A little mascara. A lot of nerve. Who said they couldn't bring down the Soviet empire."})
CREATE (JuliaR:Person {name:'Julia Roberts', born:1967})
CREATE
(TomH)-[:ACTED_IN {roles:['Rep. Charlie Wilson']}]->(CharlieWilsonsWar),
(JuliaR)-[:ACTED_IN {roles:['Joanne Herring']}]->(CharlieWilsonsWar),
(PhilipH)-[:ACTED_IN {roles:['Gust Avrakotos']}]->(CharlieWilsonsWar),
(MikeN)-[:DIRECTED]->(CharlieWilsonsWar)
CREATE (ThePolarExpress:Movie {title:'The Polar Express', released:2004, tagline:'This Holiday Season... Believe'})
CREATE
(TomH)-[:ACTED_IN {roles:['Hero Boy', 'Father', 'Conductor', 'Hobo', 'Scrooge', 'Santa Claus']}]->(ThePolarExpress),
(RobertZ)-[:DIRECTED]->(ThePolarExpress)
CREATE (ALeagueofTheirOwn:Movie {title:'A League of Their Own', released:1992, tagline:'Once in a lifetime you get a chance to do something different.'})
CREATE (Madonna:Person {name:'Madonna', born:1954})
CREATE (GeenaD:Person {name:'Geena Davis', born:1956})
CREATE (LoriP:Person {name:'Lori Petty', born:1963})
CREATE (PennyM:Person {name:'Penny Marshall', born:1943})
CREATE
(TomH)-[:ACTED_IN {roles:['Jimmy Dugan']}]->(ALeagueofTheirOwn),
(GeenaD)-[:ACTED_IN {roles:['Dottie Hinson']}]->(ALeagueofTheirOwn),
(LoriP)-[:ACTED_IN {roles:['Kit Keller']}]->(ALeagueofTheirOwn),
(RosieO)-[:ACTED_IN {roles:['Doris Murphy']}]->(ALeagueofTheirOwn),
(Madonna)-[:ACTED_IN {roles:['"All the Way" Mae Mordabito']}]->(ALeagueofTheirOwn),
(BillPax)-[:ACTED_IN {roles:['Bob Hinson']}]->(ALeagueofTheirOwn),
(PennyM)-[:DIRECTED]->(ALeagueofTheirOwn)
CREATE (PaulBlythe:Person {name:'Paul Blythe'})
CREATE (AngelaScope:Person {name:'Angela Scope'})
CREATE (JessicaThompson:Person {name:'Jessica Thompson'})
CREATE (JamesThompson:Person {name:'James Thompson'})
CREATE
(JamesThompson)-[:FOLLOWS]->(JessicaThompson),
(AngelaScope)-[:FOLLOWS]->(JessicaThompson),
(PaulBlythe)-[:FOLLOWS]->(AngelaScope)
CREATE
(JessicaThompson)-[:REVIEWED {summary:'An amazing journey', rating:95}]->(CloudAtlas),
(JessicaThompson)-[:REVIEWED {summary:'Silly, but fun', rating:65}]->(TheReplacements),
(JamesThompson)-[:REVIEWED {summary:'The coolest football movie ever', rating:100}]->(TheReplacements),
(AngelaScope)-[:REVIEWED {summary:'Pretty funny at times', rating:62}]->(TheReplacements),
(JessicaThompson)-[:REVIEWED {summary:'Dark, but compelling', rating:85}]->(Unforgiven),
(JessicaThompson)-[:REVIEWED {summary:"Slapstick redeemed only by the Robin Williams and Gene Hackman's stellar performances", rating:45}]->(TheBirdcage),
(JessicaThompson)-[:REVIEWED {summary:'A solid romp', rating:68}]->(TheDaVinciCode),
(JamesThompson)-[:REVIEWED {summary:'Fun, but a little far fetched', rating:65}]->(TheDaVinciCode),
(JessicaThompson)-[:REVIEWED {summary:'You had me at Jerry', rating:92}]->(JerryMaguire)
WITH TomH as a
MATCH (a)-[:ACTED_IN]->(m)<-[:DIRECTED]-(d) RETURN a,m,d LIMIT 10;
节点检索match
参考文档： https://neo4j.com/docs/cypher-manual/current/clauses/match/
java
// 返回所有节点信息
match (n) return n;
// 返回节点数量
match (n) return count(n);
// 返回有WROTE 关系的 两条记录
MATCH p=()-[r:WROTE]->() RETURN p LIMIT 2
条件过滤where
java
//语法
MATCH 待筛选出来的信息
WHERE 需要的结果条件
return 实例名
//示例数据
match (n)
where n.name CONTAINS 'linrc'
return n
删除节点以及关系DELETE
java
//语法
match 待删除的东西
DELETE 关系、节点、或者节点关系对变量
// 示例数据
//创建节点
create (person1:Person {name: 'linrc3'})-[:TestColleagues {company:'测试电信总公司'}]->(person2:Person {name: 'linrc4'})
// 检索 含有 TestColleagues关系 且 节点名字有 linrc字符 的
match (n)-[:TestColleagues]-(m)
where n.name contains 'linrc' or m.name contains 'linrc'
return DISTINCT n,m
match (n)
where n.name contains 'linrc3' or n.name contains 'linrc4'
return n
// 报错 == 删除节点前必须删除关系 == 否则执行失败
match (n) where n.name contains 'linrc3' or n.name contains 'linrc4' delete n
// 正常：仅删除关系，但节点还在
match ()-[t:TestColleagues]-() delete t
// 正常：节点、关系都删除
match p=()-[t:TestColleagues]-() delete p
删除节点或者关系的成员属性REMOVE
java
//语法
match 待删除属性的节点或者关系
REMOVE 需要删除的节点属性或者关系属性
//示例数据
create (person1:Person {name: 'linrc5',year:18})-[:TestTestColleagues {company:'测试测试电信总公司',remark:'备注'}]->(person2:Person {name: 'linrc6',year:19});
match (n)
where n.name contains 'linrc5' or n.name contains 'linrc6'
return n;
match (n)-[:TestTestColleagues]-(m)
where n.name contains 'linrc' or m.name contains 'linrc'
return DISTINCT n,m
// 删除 节点 的year属性 以及 关系的remark属性
match (n)-[t:TestTestColleagues]-(m)
where n.name contains 'linrc' or m.name contains 'linrc'
remove n.year,t.remark 
设置节点或者关系的属性SET
java
// 语法
match 待修改属性的节点或者关系
where 上面匹配的节点或者关系进一步过滤
set 需要修改的节点属性或者关系属性
//示例数据
create (person1:Person {name: 'linrc7',year:18})-[:TestTestColleagues {company:'测试测试电信总公司',remark:'备注'}]->(person2:Person {name: 'linrc8',year:19});
match (n)
where n.name in ['linrc7', 'linrc8']
return n;
match (n)
where n.name in ['linrc7']
set n.year = 21
return n 
排序order by
java
//语法
match 待修改属性的节点或者关系
where 上面匹配的节点或者关系进一步过滤
return 输出的结果
order by 针对输出的结果进行排序
// 示例
create (person1:Person {name: 'linrc9',year:18})-[:TestTestColleagues {company:'测试测试电信总公司',remark:'备注'}]->(person2:Person {name: 'linrc10',year:19});
match (n)
where n.name contains 'linrc' and n.year is not null
return n
order by n.year desc 
分页limit
java
//语法
match 待修改属性的节点或者关系
where 上面匹配的节点或者关系进一步过滤
return 输出的结果
order by 针对输出的结果进行排序
skip 开始从第N个元素输出(0表第一个元素) limit 此次结果输出最多记录数
// 示例
create (person1:Person {name: 'linrc9',year:18})-[:TestTestColleagues {company:'测试测试电信总公司',remark:'备注'}]->(person2:Person {name: 'linrc10',year:19});
match (n)
where n.name contains 'linrc' and n.year is not null
return n
order by n.year desc
skip 0 limit 1
常用内置函数
java
//聚合函数
count：总数
max：最大值
min：最小值
sum：求和
avg：平均值
collect：抽取某个节点或者关系属性形成一个 容器列表
//字符串函数
UPPER：所有字母大写
LOWER：所有字母小写
SUBSTRING：抽取字符串中的某位置的子字符串
REPLACE：字符串中某些字符替换成为其他字符
trim：去除字符串中首尾的空格
btrim：去除字符串中首尾的指定字符
ltrim：去除字符串中首部的指定字符
rtrim：去除字符串中尾部的指定字符
left：抽取字符串从左侧开始数的N个字符
right：抽取字符串从右侧开始数的N个字符
reverse：字符串翻转
split：基于某个字符串进行字符切割
//关系函数
id：节点或者关系的ID
type：这段关系是什么（类名）
startnode：关系的开始节点
endnode：关系的结束节点
//容器列表函数