Oracle APEX-自定义条形图

Question

Is it possible to make a bar chart a double y-axis?

I have a bar chart with 4 bars, generated by the query, returning 4 rows.

Is there a way for me to make each bar a different color and on the right-hand side, instead of series name, specify colors along with labels for each bar?

Answer 1

Click on one of the chart series and look for the 'Assign to Y-Axis' attribute

Not how this is next to a 'Color' attribute. You can source this colour from your SQL , substituting your value using the using &COLUMN_ALIAS. syntax.

An example from the sample charts application in the linked form post shows how colour can be row based (with column alias adjusted to match my screenshot)

select a.product_name, 
       b.quantity, 
       b.customer,
       -- This is the column you're looking for
       case when b.quantity > 50 then 'gold'
            when b.quantity <= 30 then 'red' 
         when b.quantity > 30 then 'green'
         else 'blue'
       end as colour
from eba_demo_chart_products a, eba_demo_chart_orders b
where a.product_id = b.product_id
and customer = 'Store A'