> For the complete documentation index, see [llms.txt](https://docs.goless.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.goless.com/blocks/data/data-mapping-block.md).

# Data Mapping Block

Map data of a table or variable.

* **Data source**\
  The data source for mapping may be a variable or a table
* **Data map**\
  The data map is where you match the source fields with the destination fields by inputting the dot notation. The source may have several destinations.
* **Assign to variable**\
  Assign mapped data into a variable or not.
* **Variable name**\
  Variable name to assign mapped data.
* **Insert to table**\
  Insert mapped data into the table or not.
* **Select column**\
  The column in which the mapped data will be inserted.