SQL Server创建存储过程和删除存储过程

创建存储过程:
create procedure dbo.order_account
@@merchantId varchar(30),
@@totalAmount numeric(15,3)=0 output
AS
DECLARE @tempAmount numeric(15,3)
select @tempAmount = sum(fd_tx_money) from tb_order where fd_merchant_id=@@merchantId
set @@totalAmount = @tempAmount

删除存储过程:
drop proc order_account

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