---
title: "vdsBlob"
slug: "oas-aref-vdsblob-3-28"
updated: 2025-12-15T15:27:47Z
published: 2025-12-15T15:27:47Z
canonical: "docs.onespan.com/oas-aref-vdsblob-3-28"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.onespan.com/llms.txt
> Use this file to discover all available pages before exploring further.

# vdsBlob

The vdsBlob table stores the binary data required for performing file-based operations in environments with multiple OneSpan Authentication Server instances, such as DIGIPASS export file (DPX) import or user import via CSV file. Each BLOB is split into chunks, and each chunk constitutes a separate database record.

## Columns

| Column name | Data type | Primary key | Nullable | Description |
| --- | --- | --- | --- | --- |
| vdsKey | varchar(255) | Yes | No | Unique key used to identify a BLOB. |
| vdsChunk | uint | Yes | No | The number of the BLOB chunk, starting at 0. |
| vdsName | varchar(255) | No | Yes | Optional name for the BLOB. |
| vdsType | integer | No | No | Type of binary data included in the BLOB. |
| vdsData | binary | No | No | Binary data of the BLOB chunk. |
| vdsModifyTime | timestamp | No | No | The date and time the data record was last modified. |
| vdsCreateTime | timestamp | No | No | The date and time the data record was created. |
| vdsVersion | integer | No | Yes | The current data schema version of the data record. |

## Keys

Primary key: (vdsKey, vdsChunk)

Foreign keys: None

## Indexes

| Index name | Included fields |
| --- | --- |
| Level 0 (default) |
| vdsblobidx | vdsKey vdsChunk |