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title: Table Calculations Prerequisites
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locale: en-us
portal_url: https://docs.salesforce.com/tableau/current/en-us/api/vizql-data-service/docs/vds_table_calcs_prerequisites.md
canonical_url: https://help.tableau.com/current/api/vizql-data-service/en-us/docs/vds_table_calcs_prerequisites.html
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description: Documentation for the VizQL Data Service
---
# Table Calculations Prerequisites

  

🕐 _1 min read_

This section assumes a basic understanding of table calculations, including addressing and partitioning. For more information, see the following documentation topics:

- [Transform Values with Table Calculations](https://help.tableau.com/current/pro/desktop/en-us/calculations_tablecalculations.htm)
- [Quick Table Calculations](https://help.tableau.com/current/pro/desktop/en-us/calculations_tablecalculations_quick.htm)
- [Customize Table Calculations](https://help.tableau.com/current/pro/desktop/en-us/calculations_tablecalculations_custom.htm)

Quick table calculations are a nice interface that matches the _Quick Table Calculation_ dialog in Tableau. However, anything you can do with quick table calculations, you can also do with [custom table calculations](https://help.tableau.com/current/api/vizql-data-service/en-us/docs/vds_table_calcs_custom.html). Custom table calculations are the equivalent of typing in a calculation.