---
sourceDocument: Brazil ServiceNow AI Platform Administration
sourceDocumentLink: https://www.servicenow.com/docs/r/platform-administration

 Release :

    - brazil

ft:locale :

    - en-US

ft:publication_title :

    - Brazil ServiceNow AI Platform Administration

ft:clusterId :

    - platadm

bundleId :

    - platadm

workflow :

    - Platform


---

# Data dictionary tables

# Data dictionary tables {#ariaid-title1}

Release version: Brazil  
Updated September 10, 2026  
![](https://www.servicenow.com/docs/portal-asset/ico-clock) 2 minutes to read
Summarize  
![AI sparkle icon](https://servicenow.com/docs/portal-asset/ai-sparkle-icon) Summarized using AI  
This content was generated using new OpenAI-powered functionality. Results are provided on an as is basis and are not guaranteed to be accurate or complete.  

## Summary of Data dictionary tables

Data dictionary tables in ServiceNow provide detailed metadata about the structure and labels of your instance's database.
They enable administrators to manage tables, fields, and their labels, which is crucial for customizing and understanding the data model behind your applications.
Show full answer Show less  

## Key Features

* **Tables \[sysdbobject\]** : Contains records for each table in the database. Accessible via *System Definition \> Tables*, it allows administrators to create custom tables, modify columns, set auto-number formats, make tables extendable, create related modules, and view schema maps. You can also navigate directly to list or form views and delete all records from a table.
* **Dictionary Entries \[sysdictionary\]** : Defines every table and field in the system, including data types, character limits, default values, dependencies, and other attributes. Accessible via *System Definition \> Dictionary*, and configurable by right-clicking headers or field labels to select Configure Dictionary.
* **Field Labels \[sysdocumentation\]** : Also known as the Language File, this table contains labels and hints for each table and column, supporting multi-language configurations. It is accessible via *System Definition \> Language File*, or by right-clicking field labels on forms to view or modify them.

## Practical Benefits for ServiceNow Customers

Understanding and utilizing these data dictionary tables empowers administrators to:

* Customize and extend the data model to fit organizational needs by creating or modifying tables and fields.
* Ensure data accuracy and integrity through precise field definitions and attributes.
* Enhance user experience by managing field labels and hints for clarity and localization.
* Visualize table relationships and dependencies through schema maps for better database design and troubleshooting.  
Access details related to tables, columns, and field labels in your instance.

## Tables

All of the information on an instance is stored in tables, which consist of a series of records. The record in turn holds a series of fields that hold the individual bits of data and can be viewed either as a list or a form.

The Tables \[sys_db_object\] table contains a record for each table in the database.

Access the Tables \[sys_db_object\] table by navigating to System DefinitionTables. From the Tables list, an administrator can create a custom table, or select an existing table to view table details. In the table form, an administrator can access table administration options.

* View, add, or modify columns with a searchable and sortable embedded list, define the auto-number format, make the table extendable by other tables, and create modules for the table.
* Launch a schema map for a table by clicking the Show Schema Map related link.
* Open the dictionary entries for the table by right-clicking the form header and selecting Show Dictionary Record.
* Navigate directly to the default list or form view for the table by clicking the Show List or Show Form related link.
* Delete all records from a table by clicking the Delete All Records.

{#c_DataDictionaryTables__ul_bgy_jk2_3cc}  
The following image shows a list of the tables that extend the Application File table.Figure 1. Tables

## Dictionary Entries

The Dictionary Entries \[sys_dictionary\] table, also called the System Dictionary, defines every table and field in the system. It contains
information about data type, character limit, default value, dependency, and other
attributes of a field.  
Access the system dictionary in one of these ways:

* To see the system dictionary list view, navigate to System DefinitionDictionary.
* To view particular dictionary definition, right-click the list header, form header, or field label, and select Configure Dictionary.
{#c_DataDictionaryTables__ul_qft_nj3_kp}  
The following image shows a filtered list of dictionary entries for the Incident table and the Task table, which it extends.Figure 2. Dictionary Inc Task

## Field Labels

The Field Labels \[sys_documentation\] table, also called the Language File, contains information about the labels and hints for each table and
column in the system.  
Access the language file in one of these ways:

* To see the list view, navigate to System DefinitionLanguage File.
* To see the field label for a particular field, right-click the field label on the form.
{#c_DataDictionaryTables__ul_ln4_zj3_kp}  
The following image shows the language file filtered to display only labels on the Incident table.Figure 3. Field Labels

*[\>]: and then