游标与事务结合使用，在游标内启用事务；判断数据类型不符合时执行下一条

--创建测试用户的表与数据

CREATE TABLE [dbo].[t1](

    [id] [int] IDENTITY(1,1) NOT NULL,

    [userId] [varchar](20) COLLATEChinese_PRC_CI_AS NULL,

    [money] [varchar](50) COLLATEChinese_PRC_CI_AS NULL,

    [state] [int] NULL

)

CREATE TABLE [dbo].[t2](

    [id] [int] IDENTITY(1,1) NOT NULL,

    [userId] [varchar](20) COLLATEChinese_PRC_CI_AS NULL,

    [money] [decimal](10, 2) NULL,

    [date] [datetime] NULL DEFAULT (getdate())

)

insert into t1 select 'jsm','1020','0' union all select 'dj','200','0' union all select 'jq','300','0'

declare @userid varchar(128),@MONEY varchar(50),@id int

declare crs_user cursor for  select userid,[money],id from t1 where state=0

open crs_user

fetch next from crs_user into @userid,@MONEY,@id

while(@@fetch_status=0)

begin

    print @userid

    if(ISNUMERIC(@MONEY)=1)--ISNUMERIC方法判断@MONEY是否为有效的整数、浮点数、money 或decimal 类型。返回值为1 时，指示可将expression 至少转换为上述数值类型中的一种，否则返回 0

    Begin

        begin tran --开始执行事务

        update t1 set state=1 where id=@id

        insert into t2(userID,[money]) VALUES(@userid,@MONEY)

       

        if(@@error>0)

            begin

                rollback tran

                print 'rollback'

            end

        else

            begin

                commit tran

                print 'commit'

            end

    end

    fetch next from crs_user into@userid,@MONEY,@id

end

close crs_user

deallocate crs_user