how to set customer id to 1,2,and 3 in Customer_CustomerRole_Mapping table

I am shut out of my admin account and looking at this:

https://www.nopcommerce.com/boards/t/26541/if-my-admn-account-deleted-then-i-have-to-install-nopcommerce-again.aspx

I need to set an existeng customer id to 1,2,and 3 in Customer_CustomerRole_Mapping table but I can't see where to do that

u need to insert 3 records to customer tole mapping table

if your customerId is 1, it should look like that:

INSERT INTO [dbo].[Customer_CustomerRole_Mapping] ([Customer_Id] ,[CustomerRole_Id])VALUES(1,1)
INSERT INTO [dbo].[Customer_CustomerRole_Mapping] ([Customer_Id] ,[CustomerRole_Id])VALUES(1,2)
INSERT INTO [dbo].[Customer_CustomerRole_Mapping] ([Customer_Id] ,[CustomerRole_Id])VALUES(1,3)

Thank you for your help I am trying to get up to speed on this but lack experience. Would I right click on dbo.Customer_CustomerRole_Mapping open powershell copy and paste the code snippet and press enter?

In SSMS, Right-click the Database node, select New Query, paste in the contents, press F5 to execute.