Newbie Grafana Question - display percentage on the dashboard

Hi all,

Newbie in Grafana and not strong SQL-er.

I’ve defined variable “Project Name” and have it as a drop down.

I then have 2 tables that look something like this:

Work Id Table

| work_id | project_name |
| 123 | Project 1 |
| 345 | Project 1 |
| 456 | Project 2 |
etc.

and
Customer Id Table

| work_id | customer_id |
| 123 | abc |

What I need to calculate is percentage of work_id’s with cusomer_id present per Project Name

So let’s say I select “Project 1” from the drop down, I will see value of 50%, and if I select “Project 2”, I will see 0%

I have 2 queries that select values from each table and do Outer Join transformation that puts them together. So the result I have so far is a table:

| work_id | project_name |customer_id |
| 123 | Project 1 | abc |
| 345 | Project 1 | |
| 456 | Project 2 | |

Thank you!

Answered my own question with single SQL query with FULL OUTER JOIN