# Bar Charts - Bar charts value mapping

**URL:** <https://community.grafana.com/t/bar-charts-bar-charts-value-mapping/57799>\
**Category:** Bar Chart Panel\
**Tags:** bar-chart-panel, value-mapping\
**Created:** [December 16, 2021, 9:13am UTC](https://community.grafana.com/t/bar-charts-bar-charts-value-mapping/57799 "2021-12-16T09:13:51Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![vladvesta](https://avatars.discourse-cdn.com/v4/letter/v/13edae/32.png) [@vladvesta](https://community.grafana.com/u/vladvesta)\
**Post date:** [December 16, 2021, 9:13am UTC](https://community.grafana.com/t/bar-charts-bar-charts-value-mapping/57799/1 "2021-12-16T09:13:51Z")

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Greetings for all.

1. Grafana 8.1.5 (Edit on Win7)
2. i’m trying to make a simple Bar Charts from query with 3 columns:
  1. Stamp (ID,Series)
  2. Sec (Seconds count)
  3. Tact Time (Same as Sec but converted as nvarchar hh:mm:ss)

So idea is simple (at least in SSRS) Need to show Bars based on Sec value BUT in Top of bar i want to see Tact Time instead of Sec.

I’ve try with transformation, overrides and value mapping but still dont get it… Google as SOF cant help me yet.

 ![11](https://us1.discourse-cdn.com/grafana/original/3X/4/2/42f1428fac167e38fbf9f0ef45a4ea6b34f775aa.png)  
 ![22](https://us1.discourse-cdn.com/grafana/original/3X/6/c/6cb75af3180a975dca4bea5efd5de47175172dd1.png)

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<div class="post-metadata">

**Author:** ![vladvesta](https://avatars.discourse-cdn.com/v4/letter/v/13edae/32.png) [@vladvesta](https://community.grafana.com/u/vladvesta)\
**Post date:** [December 17, 2021, 9:42am UTC](https://community.grafana.com/t/bar-charts-bar-charts-value-mapping/57799/2 "2021-12-17T09:42:10Z")

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Get what i need without Pre-convertation and using Standart Options