---
title: "SHOW"
sidebarTitle: "SHOW"
description: "Listing jobs, functions, materialized views, and the errors a job produced."
icon: list
keywords: ["show jobs", "show functions", "show materialized views", "show errors", "show tables"]
---

<Badge color="red">Enterprise</Badge> [SQL runs on a deployment.](/sql)

Introspection over objects DataFusion has no concept of. All four are LanceDB
extensions.

<Warning>
DataFusion's own `SHOW TABLES`, `SHOW COLUMNS` and `SHOW <variable>` are **not
available**. They are implemented over `information_schema`, which this session
does not enable, so they fail with
`"... is not supported unless information_schema is enabled"`.

List tables with the SDKs -- `table_names()` / `tableNames()`. For a table's
columns, use [`DESCRIBE`](/sql/explain#describe).
</Warning>

## SHOW MATERIALIZED VIEWS {#materialized-views}

```sql
SHOW MATERIALIZED VIEWS
```

<Note>
Cheaper than the SDK equivalent. `list_materialized_views` finds views by
reading every table's schema, costing one open per table; this asks the server.
</Note>

## SHOW FUNCTIONS {#functions}

```sql
SHOW FUNCTIONS
```

Lists registered [functions](/management/function) and their versions. Since a
version is immutable and a column pins the version that fills it, this is how
you find which versions are still in use before dropping one.

## SHOW JOBS {#jobs}

```sql
SHOW JOBS
```

Every job the server knows about — id, type, state, creation time. The SQL
counterpart of `list_jobs`; see [Jobs](/basics/jobs).

## SHOW ERRORS {#errors}

```sql
SHOW ERRORS ON <table> [FOR JOB '<job-id>'] [LIMIT <n>]
```

```sql
SHOW ERRORS ON documents
SHOW ERRORS ON documents FOR JOB 'job-abc' LIMIT 100
```

Why rows failed. This is the statement to reach for when a
[refresh](/sql/refresh) reports fewer filled rows than you expected.

**Errors and limits**

| | |
| --- | --- |
| `LIMIT` | must be between 1 and 100,000 |
| Failed jobs scanned without `FOR JOB` | 32 most recent |
| Tables the server does not open directly | not supported |

Without `FOR JOB` this surveys recent failures and stops at 32 jobs. When the
listing stops at your `LIMIT`, the message says so — narrow with `FOR JOB`
rather than raising the limit blindly.

## See also {#see-also}

<CardGroup cols={2}>
  <Card title="Management" icon="folder-tree" href="/management">
    The SDK listing calls, per object.
  </Card>
  <Card title="Query and job" icon="hourglass-half" href="/basics/jobs">
    What a job handle exposes beyond these listings.
  </Card>
</CardGroup>