Source: https://dev-docs.nebula-graph.io/v5.3.2/database-gql-reference/fe/expressions/property/
Documentation version: v5.3.2

# Property value expression

The property value expression references a property of a graph element or a field of a record.

## Syntax

diagramsource

 property_value_expression  

````
property_value_expression ::=
    node_variable '.' property_name
  | edge_variable '.' property_name
  | record_value_expression '.' property_name

````

## Parameters

### `node_variable`

A variable value expression that evaluates to a reference of a node. For more information, see [Variable value expression](https://dev-docs.nebula-graph.io/v5.3.2/database-gql-reference/fe/expressions/binding-variable/).

### `edge_variable`

A variable value expression that evaluates to a reference of an edge. For more information, see [Variable value expression](https://dev-docs.nebula-graph.io/v5.3.2/database-gql-reference/fe/expressions/binding-variable/).

### `record_value_expression`

A value expression that evaluates to a record value. For more information, see [Record type](https://dev-docs.nebula-graph.io/v5.3.2/database-gql-reference/data-types/record-type/) and [Expressions](https://dev-docs.nebula-graph.io/v5.3.2/database-gql-reference/fe/).

### `property_name`

The property name of a node or edge, or the field name of a record.

## Examples

The following examples are based on the [example dataset](https://dev-docs.nebula-graph.io/v5.3.2/database-gql-reference/overview/example-dataset/).

### Retrieve the field of a record

````
LET r = RECORD {a:1, b:true, c:"str literal"} RETURN r.c

````

The preceding statement retrieves the field `c` of the record `r`.

Return:

````
+-------------+
| r.c         |
+-------------+
| str literal |
+-------------+

````

### Retrieve the properties of nodes and edges

````
USE movie MATCH (v@`User`)-[e:Watch]->() RETURN v.id, e.rate LIMIT 3

````

The preceding statement retrieves the property `id` of users and the property `rate` of edges with the label `Watch`.

Return:

````
+------+--------+
| v.id | e.rate |
+------+--------+
| 64   | 4.0    |
| 64   | 3.5    |
| 64   | 5.0    |
+------+--------+

````

### Retrieve the field of a nested record

````
LET r = RECORD {a:1, b:true, c:RECORD {d:2, e:"str literal"}} RETURN r.c.e AS result

````

or

````
RETURN RECORD {a:1, b:true, c:RECORD {d:2, e:"str literal"}}.c.e AS result

````

Return:

````
+-------------+
| result      |
+-------------+
| str literal |
+-------------+

````