Table cleaner

concept brazil Updated Sep 10, 2026 1 min read table-cleaner.md

Prevent tables from growing to an unmanageable size by deleting records automatically.

Key benefits

Improve query performance by deleting records you no longer need.
Delete older, expired, or unwanted records from tables automatically.
Prevent data from growing exponentially.

Accessing table cleaner rules

You can define and access table cleanup rules for a table by navigating to All > System Data Management > Data Management Policies and selecting the data management policy for the table.

Use cases

Delete closed incidents that haven't been updated in 30 days. In this scenario, you define a table cleanup rule on the Incident [incident] table using sys_updated_on as the match field and you specify 2,592,000 as the age in seconds. You specify the condition State is Closed to only delete closed incidents.
Manage data growth in tables used by Virtual Agent and Conversational Interfaces by activating table cleanup rules for the following tables:
- Chat Server [sys_cs_analytics]
- Conversations [sys_cs_conversation]
- Message Last Reads [sys_cs_message_last_read]
- Ci Analytics [sys_ci_analytics]
Conversation-related tables can increase in size and end up affecting system performance. Limit data growth by cleaning records in tables related to Advanced Work Assignment. See .

For information on using table cleaner, see Deleting older or unwanted records in Core UI.

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---
title: Table cleaner
description: Prevent tables from growing to an unmanageable size by deleting records automatically.
locale: en-US
canonical_url: https://www.servicenow.com/docs/r/platform-administration/table-cleaner.html
release: brazil
topic_type: concept
last_updated: "2026-09-10"
reading_time_minutes: 1
breadcrumb: [Explore, Data Management, Tables and data, Configure core features, Administer the ServiceNow AI Platform]
---

# Table cleaner

Prevent tables from growing to an unmanageable size by deleting records automatically.

## Key benefits

- Improve query performance by deleting records you no longer need.
- Delete older, expired, or unwanted records from tables automatically.
- Prevent data from growing exponentially.

## Accessing table cleaner rules

You can define and access table cleanup rules for a table by navigating to **All** &gt; **System Data Management** &gt; **Data Management Policies** and selecting the data management policy for the table.

## Use cases

- Delete closed incidents that haven't been updated in 30 days. In this scenario, you define a table cleanup rule on the Incident \[incident\] table using sys\_updated\_on as the match field and you specify 2,592,000 as the age in seconds. You specify the condition State is Closed to only delete closed incidents.
- Manage data growth in tables used by Virtual Agent and Conversational Interfaces by activating table cleanup rules for the following tables:
- Chat Server \[sys\_cs\_analytics\]
- Conversations \[sys\_cs\_conversation\]
- Message Last Reads \[sys\_cs\_message\_last\_read\]
- Ci Analytics \[sys\_ci\_analytics\]
- Conversation-related tables can increase in size and end up affecting system performance. Limit data growth by cleaning records in tables related to Advanced Work Assignment. See .

For information on using table cleaner, see [Deleting older or unwanted records in Core UI](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/brazil/markdown/platform-administration/deleting-older-records.md).