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# DataComparisonExpressionEntityType

The possible ways to reference a data object.

```graphql
enum DataComparisonExpressionEntityType {
  ColumnReferenceByName
  DataObject
}
```

### Values

#### ColumnReferenceByName <a href="#column-reference-by-name" id="column-reference-by-name"></a>

Reference will happen through the column name.

#### DataObject <a href="#data-object" id="data-object"></a>

Reference will happen through data object ID.

### Member Of

[`DataComparisonExpressionReference`](/api/graphql/data-access/object-types/data-comparison-expression-reference.md) object ● [`DataComparisonExpressionReferenceInput`](/api/graphql/data-access/input-types/data-comparison-expression-reference-input.md) input