📅 最后修改于: 2020-11-25 01:54:42 🧑 作者: Mango
就像我们在SQL中使用的一样，Neo4j CQL中使用了一些聚合函数。这些函数在RETURN子句中使用。它类似于SQL中的GROUP BY子句。
聚集函数与MATCH命令中的RETURN子句一起使用，以在一组节点上工作并返回一些聚集值。
Neo4j中的聚合函数列表如下：
| Index | Function | Description |
|---|---|---|
| 1. | COUNT() | COUNT() function is used to fetch the number of rows returned by MATCH command. |
| 2. | MAX() | MAX() function is used to fetch the maximum value from a set of rows returned by MATCH command. |
| 3. | MIN() | MIN() function is used to fetch the minimum value from a set of rows returned by MATCH command. |
| 4. | SUM() | SUM() function is used to fetch the summation value of all rows returned by MATCH command. |
| 5. | AVG() | AVG() function is used to fetch the average value of all rows returned by MATCH command. |