Question : Make table Union All query

I have the following table,
Tracking Number | Address Correction | Extended Area | Extra Handling
123456 $0.00 $10.00 $12.00
139852 $6.00 $10.00 $0.00
155478 $0.00 $10.00 $12.00
How can I make a table from the one above that has records as below,
Tracking Number | Service Name | Charge
123456 Extended Area $10.00
123456 Extra Handling $12.00
139852 Address Correction $6.00
139852 Extended Area $10.00
155478 Extended Area $10.00
155478 Extra Handling $12.00
I guess some sort of Union All query would do it bu I'm not sure how.

Answer : Make table Union All query

try this.

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SELECT * FROM (
SELECT [Tracking Number], "Address Correction" as [Service Name], [Address Correction] as Charge FROM Invoice UNION ALL
SELECT [Tracking Number], "Extended Area" as [Service Name], [Extended Area] as Charge FROM Invoice UNION ALL
SELECT [Tracking Number], "Extra Handling" as [Service Name], [Extra Handling] as Charge FROM Invoice) AS T1
WHERE Charge <> 0
ORDER BY [Tracking Number],[Service Name]

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