SQLServer存储过程 实例，很多语法可以以后参考

SQL代码

alter PROCEDURE sp_addnewdtgtype
(
    @dtgtypename varchar(50),
    @dtgdllcontent image,
    @returnmessage varchar(100)
)
AS
BEGIN
    declare @dtgtableaddsql varchar(300);
    declare @v_count int;
    declare @yyyymmddhhmm char(12);

    select @v_count=COUNT(1)  from tb_DTGs where dtgname=@dtgtypename;
    if(@v_count=0)
    begin
    set @returnmessage='注册失败,该类型名称已存在'
    return 0
    end
    else
    begin
        begin
            begin try
                begin tran
                
                    select @yyyymmddhhmm=datename(year,GETDATE())+right('0'+DATENAME(MONTH,GETDATE()),2)+right('0'+DATENAME(DAY,GETDATE()),2)+right('0'+DATENAME(HOUR,GETDATE()),2)+right('0'+DATENAME(MINUTE,GETDATE()),2)
                
                    insert into tb_DTGs(dtgid,dtgname,dtgdllcontent,createtime,updatetime) values(@v_count,@dtgtypename,@dtgdllcontent,@yyyymmddhhmm,@yyyymmddhhmm)
                    
                commit tran
            end try
            begin catch
                rollback tran
                set @returnmessage='数据库未知错误,操作未能成功';
                return 0
            end catch
        end
    end
END
GO