# COLUMNS
The COLUMNS identifier returns a reference to a specific column in the report. Type 'COLUMNS.' to enable a dropdown with a list of all the columns available in the visual.
Columns reference
{% hint style="warning" %}
'Columns' is applicable only when inserting visual measures.
{% endhint %}
## Example
We have a discount value for all months. If we want the discount value of January month to be applied for all months, then it can be achieved using the columns function as shown below.
Columns reference
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