Hi @najruli ,
Could you please share a bit more about your scenario?
Do you want to remove same record from your SQL Table when you remove single row from your Collection?
Further, do you collect the new items into a Collection, and then patch the Collection into your SQL Table?
If you want to remove one record from your SQL Table, you must find the record in your SQL Table firstly. I have made a test on my side, please take a try with the following workaround:
Add the following formula within the "Remove" icon within your Gallery:
Remove(
'[dbo].[YourSQLTable]',
LookUp('[dbo].[YourSQLTable]', PrimaryColumn = ThisItem.PrimaryColumn) /* <-- Find the reocrd you want to update */
)
Note: The PrimaryColumn represents the Primary column in your SQL Table, which could identify one record uniquely.
More details about the LookUp function in PowerApps, please check the following article:
LookUp function
Best regards,