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

# View Comparisons

> View, filter, and manage all dataset comparisons in your workspace.

The Comparisons page lists every comparison run in your workspace. Navigate to **Comparisons** in the left sidebar to access it.

## Comparison types

| Type        | Description                                                                                      |
| ----------- | ------------------------------------------------------------------------------------------------ |
| **Deep**    | Scans both datasets fully and identifies all differences. Generates a detailed diff report.      |
| **Shallow** | Stops after the first value difference found. Faster than Deep for quick checks.                 |
| **Schema**  | Compares structural elements only — column names, data types, and constraints. Ignores row data. |

## Table columns

| Column                      | Description                                                                |
| --------------------------- | -------------------------------------------------------------------------- |
| **Run ID**                  | Unique identifier for the comparison execution.                            |
| **Comparison Name**         | Name assigned to the comparison, plus its type (Deep, Shallow, or Schema). |
| **Source & Target Dataset** | The two datasets being compared.                                           |
| **Results**                 | Whether the datasets are Identical or Different.                           |
| **Diff PKs**                | Number of primary keys that differ between source and target.              |
| **Diff Rows**               | Number of rows that differ between source and target.                      |
| **Origin**                  | Where the comparison was triggered — Web UI or CLI.                        |
| **Created At**              | Timestamp of when the comparison was created.                              |

## Filters

| Filter                      | Options                                                          |
| --------------------------- | ---------------------------------------------------------------- |
| **Results**                 | Identical, Different                                             |
| **Origin**                  | Web, CLI                                                         |
| **Comparison Type**         | Deep, Shallow, Schema                                            |
| **Source / Target Dataset** | Select a specific dataset pair                                   |
| **Diff PKs / Rows %**       | Filter by percentage threshold                                   |
| **Search**                  | Search by name or Run ID                                         |
| **Date range**              | Today, Yesterday, Last Week, Last Month, Last Quarter, or custom |

## Actions

* **View details** — Click any row to open the full comparison result with schema, primary key, and value diff tabs.
* **Generate report** — Select one or more runs via checkbox, then click **Report** to export a breakdown of schema diffs, primary key exclusives, duplicates, value differences, and row counts.
* **Delete** — Select a run and click **Delete Run** to permanently remove it.

## Create a comparison

Click **New Comparison** to set up a new run. See [Create a Comparison](/comparisons/create) for a step-by-step guide.