# Sequential Integer (UniqueIntegerGenerator)

The [Sequential Integer](/app/generation/generators/generator-reference/sequential-integer.md) generator returns integer values that increment by 1 for each row in the destination database.

## Link object structure <a href="#generator-api-sequential-integer-link-object" id="generator-api-sequential-integer-link-object"></a>

The Sequential Integer generator can be linked. You provide a link object for each linked column. The generator does not support consistency. You cannot configure differential privacy.

The `metadata` object is populated from the [`UniqueIntegerMetadata`](https://app.tonic.ai/apidocs/index.html#/models/UniqueIntegerMetadata) object. `startingPoint` provides the first integer to apply.

```json
{
  "schema": "string",
  "table": "string",
  "column": "string",
  "path": "string",  //JSON fields only
  "dataType": "string",  //MongoDB, Amazon DynamoDB, and JSON fields only
  "metadata": {
    "presetId": "string",
    "generatorId": "UniqueIntegerGenerator",
    "startingPoint": integer,
    "encryptionProcessor": "x-on", //To use configured Structural data encryption
    "customValueProcessor": "string"  //If custom value processor applied
  }
}
```

## Example replacement <a href="#generator-api-sequential-integer-replacement" id="generator-api-sequential-integer-replacement"></a>

The following example replacement for the Sequential Integer generator configures a single unlinked column. The values start with 4.

```json
{
  "name": "user-number",
  "schema": "public",
  "table": "users",
  "links": [
    {
      "schema": "public",
      "table": "users",
      "column": "user-number",
      "metadata": {
        "presetId": "UniqueIntegerGenerator",
        "generatorId": "UniqueIntegerGenerator",
        "startingPoint": 4
      }
    }
  ]
}
```


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