Example representation: Workbook with a union (Beta)

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This documentation describes one or more public beta features that are in development. Beta features are subject to quick, iterative changes; therefore the current user experience in the Sigma service can differ from the information provided in this page.

This page should not be considered official published documentation until Sigma removes this notice and the beta flag on the corresponding feature(s) in the Sigma service. For the full beta feature disclaimer, see Beta features.

This is an example representation of a workbook, retrieved using the Get a workbook endpoint with the query parameter includeContents=true. Representations like this one can be used to create a workbook from code using the Create a workbook endpoint. Each page in this example library includes the code representation of the workbook and step-by-step instructions to create it in the Sigma UI.

Consult this example and others in the Workbook representation example library to:

  • Troubleshoot the formatting of a particular feature in code representation
  • Relate a feature from the Sigma UI to its representation in code
  • Provide context to AI tools used to create workbooks from code

This example representation cannot be used as-is. All identifying details, such as IDs, names, and URLs, have been replaced with randomized ID values or generic substitutions. The format of these contents, like the length of ID values, is preserved for demonstrative purposes. However, this representation cannot be directly used without modification to the base URL, connection details, and more. For more information, see Create and manage workbooks from code.

System and user requirements

To complete the steps in this example, you must meet the user requirements listed below for creating the workbook in the UI and creating it from code.

The ability to create this workbook in the Sigma UI requires the following:

  • You must be assigned an account type with the Create, edit, and publish workbooks permission enabled.
  • You must have access to a connection to a data platform.

The ability to create a workbook from code requires the following:

This example uses a table from the Sigma Sample Connection. Your organization might have disabled access to the Sigma sample connection. If so, you can contact an admin to enable it, or use a table from another connection to follow along with this example.

Create the example workbook in the Sigma UI

This example shows a workbook with a table sourced from a union that stacks loan applications together with funded loans.

To create this workbook in the Sigma UI:

  1. Go to the Home page.

  2. Select Create new > Workbook.

    A new workbook opens.

  3. From the Add element bar, select Data > Table > Union.

  4. In the Select source modal, search for the table OAKMARK_BANK_LOAN_APPLICATIONS in the EXAMPLES.DATACAMP schema, then choose Select.

  5. In Sources, select Add source.

  6. In the Select source modal, select the OAKMARK_BANK_LOANS table in the same schema, then choose Select.

  7. In Sources, under the table names, match the following columns across the two tables:

    Output columnLoan applicationsLoans
    Application IdApplication IdApplication Id
    Customer IdCustomer IdCustomer Id
    Application DateApplication DateStart date
    Loan TypeLoan TypeLoan Type
    AmountLoan AmountPrincipal
    Term YearsRequested Term YearsTerm Years
    Credit Score at ApplicationCredit Score at ApplicationNo match
    StatusStatusStatus
  8. Select Done.

  9. In the document header, select Save as.

  10. Enter a name for the workbook, such as union.

  11. Select Save.

Get a code representation of this workbook

To get a representation of this workbook, follow the steps in Get the code representation of a workbook.

The code representation of this workbook appears like the following:

workbookId: c8fc162f-d561-4ed8-b9f6-c04632c78031
workbookUrlId: qmTEGGrmmKnL0MIT2nBtkR
createdBy: zgzXpTRVbfX4ZE9TEm9q9fUsfXZ5o
updatedBy: zgzXpTRVbfX4ZE9TEm9q9fUsfXZ5o
createdAt: '2026-09-01T14:57:59.189Z'
updatedAt: '2026-09-08T17:17:31.310Z'
name: union
url: https://aws-api.sigmacomputing.com/org-name/workbook/qmTEGGrmmKnL0MIT2nBtkR
path: My Documents/<folder-name>
latestVersion: 5
ownerId: zgzXpTRVbfX4ZE9TEm9q9fUsfXZ5o
isArchived: false
contents:
schemaVersion: 1
elements:
- id: BWpDAJYAj1
kind: table
source:
kind: union
sources:
- connectionId: b2af3691-12a0-48fa-a91d-fbe2e1b31627
kind: warehouse-table
path:
- EXAMPLES
- DATACAMP
- OAKMARK_BANK_LOAN_APPLICATIONS
- connectionId: b2af3691-12a0-48fa-a91d-fbe2e1b31627
kind: warehouse-table
path:
- EXAMPLES
- DATACAMP
- OAKMARK_BANK_LOANS
matches:
- outputColumnName: Application Id
sourceColumns:
- '[Application Id]'
- '[Application Id]'
- outputColumnName: Customer Id
sourceColumns:
- '[Customer Id]'
- '[Customer Id]'
- outputColumnName: Application Date
sourceColumns:
- '[Application Date]'
- '[Start Date]'
- outputColumnName: Loan Type
sourceColumns:
- '[Loan Type]'
- '[Loan Type]'
- outputColumnName: Loan Amount
sourceColumns:
- '[Loan Amount]'
- '[Principal]'
- outputColumnName: Requested Term Years
sourceColumns:
- '[Requested Term Years]'
- '[Term Years]'
- outputColumnName: Credit Score at Application
sourceColumns:
- '[Credit Score at Application]'
- null
- outputColumnName: Status
sourceColumns:
- '[Status]'
- '[Status]'
columns:
- id: ntQlDMco00
formula: '[Union of 2 Sources/Application Id]'
- id: 5sVSOPN0oT
formula: '[Union of 2 Sources/Customer Id]'
- id: 7ycTlyQ71e
formula: '[Union of 2 Sources/Application Date]'
- id: oBmHE1c7RB
formula: '[Union of 2 Sources/Loan Type]'
- id: yE4yFL8FKQ
formula: '[Union of 2 Sources/Loan Amount]'
- id: W2wQgMSYo5
formula: '[Union of 2 Sources/Requested Term Years]'
- id: wnrt6ew0Ma
formula: '[Union of 2 Sources/Credit Score at Application]'
- id: WolrHTU6Zu
formula: '[Union of 2 Sources/Status]'
order:
- ntQlDMco00
- 5sVSOPN0oT
- 7ycTlyQ71e
- oBmHE1c7RB
- yE4yFL8FKQ
- W2wQgMSYo5
- wnrt6ew0Ma
- WolrHTU6Zu
visibleAsSource: false
pages:
- id: eKhTktnw
name: Page 1
kind: workbook
layout: |
<?xml version="1.0" encoding="utf-8"?>
<Page type="grid" gridTemplateColumns="repeat(24, 1fr)" gridTemplateRows="auto" id="eKhTktnw">
<Element elementId="BWpDAJYAj1" gridColumn="1 / 25" gridRow="1 / 21"/>
</Page>
documentVersion: 5

Representing unions

...
id: BWpDAJYAj1
kind: table
source:
kind: union
sources:
- connectionId: b2af3691-12a0-48fa-a91d-fbe2e1b31627
kind: warehouse-table
path:
- EXAMPLES
- DATACAMP
- OAKMARK_BANK_LOAN_APPLICATIONS
- connectionId: b2af3691-12a0-48fa-a91d-fbe2e1b31627
kind: warehouse-table
path:
- EXAMPLES
- DATACAMP
- OAKMARK_BANK_LOANS
matches:
- outputColumnName: Application Id
sourceColumns:
- '[Application Id]'
- '[Application Id]'
- outputColumnName: Customer Id
sourceColumns:
- '[Customer Id]'
- '[Customer Id]'
- outputColumnName: Application Date
sourceColumns:
- '[Application Date]'
- '[Start Date]'
- outputColumnName: Loan Type
sourceColumns:
- '[Loan Type]'
- '[Loan Type]'
- outputColumnName: Loan Amount
sourceColumns:
- '[Loan Amount]'
- '[Principal]'
- outputColumnName: Requested Term Years
sourceColumns:
- '[Requested Term Years]'
- '[Term Years]'
- outputColumnName: Credit Score at Application
sourceColumns:
- '[Credit Score at Application]'
- null
- outputColumnName: Status
sourceColumns:
- '[Status]'
- '[Status]'
columns:
- id: ntQlDMco00
formula: '[Union of 2 Sources/Application Id]'
- id: 5sVSOPN0oT
formula: '[Union of 2 Sources/Customer Id]'
- id: 7ycTlyQ71e
formula: '[Union of 2 Sources/Application Date]'
- id: oBmHE1c7RB
formula: '[Union of 2 Sources/Loan Type]'
- id: yE4yFL8FKQ
formula: '[Union of 2 Sources/Loan Amount]'
- id: W2wQgMSYo5
formula: '[Union of 2 Sources/Requested Term Years]'
- id: wnrt6ew0Ma
formula: '[Union of 2 Sources/Credit Score at Application]'
- id: WolrHTU6Zu
formula: '[Union of 2 Sources/Status]'
order:
- ntQlDMco00
- 5sVSOPN0oT
- 7ycTlyQ71e
- oBmHE1c7RB
- yE4yFL8FKQ
- W2wQgMSYo5
- wnrt6ew0Ma
- WolrHTU6Zu
visibleAsSource: false
...