提交 2f524527 编写于 作者: 张志晨

fix bug

上级 f008a511
......@@ -14,7 +14,7 @@
节点和关系构成了图形模式的构建块。这些构建块可以组合在一起来表达简单或复杂的模式。模式是图形最强大的功能。在 Cypher 中,它们可以写成一条连续的路径,也可以分成更小的模式并用逗号连接在一起。
```cypher
```bash
(p:Person {name: "Jennifer"})-[rel:LIKES]->(g:Technology {type: "Graphs"})
```
......
......@@ -28,7 +28,7 @@ JOIN ProductCategory pc5 ON (pc4.ParentID = pc5.CategoryID AND pc5.CategoryName
Cypher 能够通过适当的关系表达任何深度的层次结构。可变级别由可变长度路径表示,`*`在关系类型和可选限制 ( `min..max`)后面用星号表示。
```cypher
```bash
MATCH (p:Product)-[:CATEGORY]->(l:ProductCategory)-[:PARENT*0..]-(:ProductCategory {name:"Dairy Products"})
RETURN p.name
```
......@@ -52,7 +52,7 @@ WHERE p.ProductName = 'Chocolade';
## 答案
```cypher
```bash
MATCH (p:Product {productName:"Chocolade"})<-[:PRODUCT]-(:Order)<-[:PURCHASED]-(c:Customer)
RETURN distinct c.companyName;
```
......@@ -65,14 +65,14 @@ RETURN distinct c.companyName;
### B
```cypher
```bash
MATCH (p:Product.productName:"Chocolade")<-[:PRODUCT]-(:Order)<-[:PURCHASED]-(c:Customer)
RETURN distinct c.companyName;
```
### C
```cypher
```bash
MATCH (p:Product{"Chocolade"})<-[:PRODUCT]-(:Order)<-[:PURCHASED]-(c:Customer)
RETURN distinct c.companyName;
```
......
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