Database multi-Table update, deletion, and insert transaction processing SQL

/*

@ Errorcode 0 success

@ Errorcode-1 failure rolled back

*/

Declare @ errorcode int

Set @ errorcode = 0

 

Declare @ transtarted bit

Set @ transtarted = 0

 

If (@ trancount = 0)

Begin

Begin transaction

Set @ transtarted = 1

End

Else

Set @ transtarted = 0

 

-- Update, delete, and insert a table (omitted)

If (@ error <> 0)

Begin

Set @ errorcode =-1

Goto cleanup

End

 

-- Update, delete, and insert a table (omitted)

 

If (@ error <> 0)

Begin

Set @ errorcode =-1

Goto cleanup

End

 

If (@ transtarted = 1)

Begin

Set @ transtarted = 0

Commit transaction

End

 

Return (0)

 

Cleanup:

 

If (@ transtarted = 1)

Begin

Set @ transtarted = 0

Rollback transaction

End

 

Return @ errorcode

 

Why can't I send SQL code here? No one in the options can tell me thank you.