当前位置: 首页 > 编程日记 > 正文

k8s crd构建方法_告诉您正在构建没人想要的东西的8种方法(以及处理方法)

k8s crd构建方法

by Geoffrey Bourne

杰弗里·伯恩(Geoffrey Bourne)

告诉您正在构建没人想要的东西的8种方法(以及处理方法) (8 ways to tell you’re building something nobody wants (and what to do about it))

Building something users want is hard — damn hard. They are a fickle bunch and make it so difficult by not clearly articulating exactly what they want. They make us guess, and when we give them something we know they need, they don’t want it. Don’t they know what’s good for them? Why won’t they listen? Grrrr. So frustrating!

建立用户想要的东西很难-真该死。 他们是一堆善变的人,没有明确说出他们想要的东西,就很难做到。 他们让我们猜测,当我们给他们一些我们知道他们需要的东西时,他们就不想要它。 他们不知道对他们有什么好处吗? 他们为什么不听? rr 太令人沮丧了!

The problem is, we’ve told users what they want instead of figuring out what users want. We’re frustrated because what we decided was wrong. Who likes to be told they’re wrong? So how do we deduce what users want and achieve the product market fit we’ve been searching for?

问题是,我们已经告诉用户他们想要什么,而不是弄清楚用户想要什么。 我们感到沮丧,因为我们的决定是错误的。 谁喜欢被告知他们错了? 那么,我们如何推断用户想要什么并实现我们一直在寻找的产品市场契合度?

The Lean Startup way starts with a hypothesis (hopefully based on research, experience, or divine inspiration). Then you build a minimal viable product, measure the results, and adjust the product or hypothesis. In other words, we need to figure out, in the quickest way possible and over many iterations, what the users really do want.

精益创业的方式始于假设(希望基于研究,经验或神圣的灵感)。 然后,您将构建一个最小可行的产品,衡量结果,并调整产品或假设。 换句话说,我们需要以最快的方式并且经过多次迭代来找出用户真正想要的东西。

There are many great articles and books about finding product market fit. They often don’t discuss falling into the trap of thinking you are on the path the success, but actually being on the road to failure. The best way to tell if you’re building something no one wants is by looking out for these eight traps.

关于找到适合市场的产品,有很多很棒的文章和书籍。 他们通常不会谈论陷入陷阱,以为您正在走向成功,但实际上正在走向失败。 判断您是否正在构建没人想要的东西的最佳方法是寻找这八个陷阱。

陷阱一:一无所知,随便什么。 (Trap 1: Clueless, like whatever.)

You have no clue how many people are using the new feature, application, or site. You have no statistics, measurements, or hard data. When asked, you respond with, “Um…”.

您不知道有多少人正在使用新功能,应用程序或网站。 您没有统计信息,度量或硬数据。 当被问到时,您回答“ Um…”。

What to do: Being blind to your success or failure isn’t a good way to go about anything. Start by gathering data and metrics with tools such as Google Analytics (free) or MixPanel (costs money for larger sites). You should own this data and be able to rattle off the top of your head the number of users you have, engagement, and feedback. Define your key metrics and own them!

怎么做:对成功或失败视而不见并不是任何事情的好方法。 首先使用Google Analytics ( 分析) (免费)或MixPanel (为大型网站付费)之类的工具收集数据和指标。 您应该拥有这些数据,并且能够动摇您拥有的用户数量,参与度和反馈意见。 定义您的关键指标并拥有它们!

陷阱2:利益相关者错误。 (Trap 2: Wrong stakeholders.)

You’re only concerned if your internal business owners are happy. The start and end of your success is the happiness of your business owners. When asked for something you know isn’t a good idea, you go along since the “business owner asked for it.”

您只关心内部企业主是否满意。 成功的开始和结束是企业主的幸福。 当被问到您知道不是一个好主意的事情时,您就会自“企业主要求它”开始。

What to do: Is your goal making your end users (the real users) happy or your business owners happy? Unfortunately, companies often measure employee success (i.e. comp, promotion) based on the happiness of the business owner. But your end user — external or internal — is all that matters. They are the true measurement of success and product market fit. Success will only be achieved if your full focus is on your end users. If that isn’t possible at your company, look for a new job.

怎么做:您的目标是让最终用户(真实用户)感到高兴还是企业主感到高兴? 不幸的是,公司经常根据企业主的幸福来衡量员工的成功(即,晋升,晋升)。 但您的最终用户(外部还是内部)才是最重要的。 它们是成功与产品市场契合度的真实衡量标准。 只有将全部精力放在最终用户身上,才能取得成功。 如果您的公司无法做到这一点,请寻找新工作。

陷阱3:我知道他们会喜欢的,我只是知道。 (Trap 3: I know they’ll love it, I just know it.)

You haven’t A/B tested any of the new features because you already know users will love it. You have released the product and people like it or are using it, so job well done.

您尚未A / B测试过任何新功能,因为您已经知道用户会喜欢它。 您已经发布了产品,并且人们喜欢它或正在使用它,因此工作做得很好。

What to do: This goes back to metrics and measurements. Stop making assumptions because you’re most likely wrong. Only assume you don’t know and you need to test and verify. Use tools such as Google Optimize (free) or Optimizely (paid) to confirm your hypothesis that the new feature is better than the old. You’ll be amazed at the greater success you can achieve through A/B testing. The classic example is 25% more clicks if the button is green instead of red.

做什么:这可以追溯到指标和度量。 停止做假设,因为您很可能错了。 仅假设您不知道并且需要测试和验证。 使用诸如Google Optimize (免费)或Optimizely (付费)之类的工具来确认您的假设,即新功能优于旧功能。 通过A / B测试可以取得更大的成功,您会感到惊讶。 经典示例是如果按钮为绿色而不是红色,则点击次数增加了25%。

陷阱4:我的路还是高速公路。 (Trap 4: My way or the highway.)

Your internal customers aren’t adopting the new feature/product that you know is so much better than the old one. You shut down the old feature/app to force your users to use the new one. You await the thank you notes from the users.

您的内部客户没有采用您知道比旧功能好得多的新功能/产品。 您关闭了旧功能/应用程序以强制用户使用新功能。 您正在等待用户的感谢信。

What to do: Your users have clearly told you they don’t want the new feature/app, so, please STOP forcing your will on them. Figure out why the users don’t want your new system: ask them, A/B test MVPs, or be willing to scrape or pivot. I’ve been in situations where we forced the users into the new system they didn’t want. Why? Because we already spent a lot of time and money on the new system. As you can imagine, it ended in absolute disaster.

要做的事情:您的用户已经明确告诉您,他们不需要新功能/应用程序,因此,请不要再强迫您这样做了。 弄清楚用户为什么不想要您的新系统:询问他们,A / B测试MVP还是愿意抓取或转换。 我曾经遇到过强迫用户进入他们不想要的新系统的情况。 为什么? 因为我们已经在新系统上花费了很多时间和金钱。 可以想象,它以绝对的灾难而告终。

陷阱5:我做了我的工作。 (Trap 5: I did my job.)

You kinda know people aren’t using what was just built. But you measure success as having delivered the full scope on time and on budget. You declare success!

您有点知道人们没有使用刚构建的东西。 但是,您将成功视为按时和按预算交付了全部产品。 您宣布成功!

What to do: Realize you only achieved failure. The true measure of success is: Does your end user want the product? Excuses don’t cut it, unless you plan on sitting down with each user and saying, “Now, I know you don’t like what I built, but I met all the requirements. The product was on time and on budget. Thus, you should use it and like it.”

怎么做:意识到您只有失败了。 成功的真正衡量标准是:最终用户是否需要该产品? 借口不会削减它,除非您计划与每个用户坐下来并说:“现在,我知道您不喜欢我的产品,但我满足了所有要求。 该产品按时按预算进行。 因此,您应该使用它并喜欢它。”

It is easy (believe me, I know) to escape into “I did my job” thinking. Especially if your company encourages you to focus on your narrow silo (e.g. engineering, marketing). Resist this delusion and always be asking yourself, “Is what I built (no matter how awesome it is from my perspective) what my users want?” Answer this question with data-driven metrics collected from tools such as Google Analytics.

(相信我,我知道)很容易陷入“我做了我的工作”的思想。 特别是如果您的公司鼓励您专注于狭窄的孤岛(例如,工程,市场营销)。 抵制这种妄想,并总是问自己:“我所构建的(无论从我的角度来看,它多么强大)是我的用户想要的吗?” 使用从诸如Google Analytics(分析)之类的工具收集的数据驱动指标来回答此问题。

陷阱六:每个人都说他们喜欢它。 (Trap 6: Everyone says they love it.)

You measure the product success with, “Users really like it, we have gotten great feedback and my boss said…”.

您通过“用户非常喜欢它,我们得到了很好的反馈,而我的老板说……”来衡量产品的成功。

What to do: As opposed to number Five Trap above, you actually believe you have reached product market fit. You came to this conclusion by listening to anecdotal evidence. Imagine if you were asking investors for a higher valuation because of your great success. Would you present your evidence as, “User Joe Smith said, ‘Great work guys, congrats’” or “The COO said this is really great for the business. Keep going!”

怎么办:与上面的第五个陷阱相反,您实际上认为自己已经达到了产品市场的要求。 您是通过听闻轶事得出这个结论的。 想象一下,是否因为您的巨大成功而向投资者要求更高的估值。 您是否会以“用户乔·史密斯说,'干得好,恭喜'”或“首席运营官说,这对企业来说真的很棒”来提供证据。 继续!”

Don’t feel bad if you have fallen into this trap. I’ve sat through many all-hands meetings at billion dollar market-cap companies. We measured our success with similar quotes. Remember, data-driven metrics help you truly measure product market fit.

如果您陷入了这个陷阱,请不要感到难过。 我参加了数十亿美元市值公司的许多全体会议。 我们用类似的报价来衡量我们的成功。 请记住,数据驱动的指标可帮助您真正衡量产品的市场契合度。

陷阱7:如果没有此功能,我们将无法释放。 (Trap 7: We can’t release without this feature.)

You spend three, six, or twelve months building before shipping. You’ve put your blood, sweat, and tears into the product and it has finally happened. You’ve built every feature the users need and it is glorious. Let’s release!

在运输之前,您需要花费三个,六个或十二个月的时间进行建造。 您已经将血液,汗水和眼泪放入产品中,并且最终发生了。 您已经建立了用户需要的所有功能,并且功能非常丰富。 放开吧!

What to do: Build the minimal viable product (MVP) possible. From there you’ll learn if what you’ve built is on the right path to product market fit. Imagine you’re driving a car at 100 mph towards a brick wall with a 6-foot wide space for you to fit through. If you are a mile away, but hundreds of feet off from the opening, you’ll have time to adjust and make the fit. If you are 10-feet away, but hundreds of feet off from the opening…ouch.

要做的事情:建立最小的可行产品(MVP)。 从那里,您将了解到您所构建的产品是否在正确的路线上,以适应产品市场。 想象一下,您以100英里/小时的速度行驶着一辆汽车,驶向一堵6英尺宽的砖墙以供您穿过。 如果您距离酒店有一英里,但距离开口有几百英尺,那么您将有时间进行调整和调整。 如果您的距离是10英尺,但距洞口有几百英尺……哦。

In finding product market fit, you have limited time/money. Would you rather continually measure, learn, and adjust to find that fit? Or would you rather close your eyes, build for 3–12 months, and open your eyes at the end to see if you fit?

在寻找适合市场的产品时,您的时间/金钱有限。 您是否愿意不断地测量,学习和调整以找到合适的位置? 还是您想闭上眼睛,呆3到12个月,然后睁开眼睛看看自己是否适合?

陷阱8:年终审查时间。 (Trap 8: Year-end review time.)

You spin your year-end review to focus on how hard you worked and delivered everything asked of you. You got a good review, so you must have been successful.

您将您的年终审阅调整为专注于您的工作努力和交付了您所要求的一切。 您获得了良好的评价,因此您一定已经成功了。

What to do: Look at your last year-end review. Were you able to quote data-driven metrics and definitely prove you found product market fit? To be honest, this is a hard one since no one wants to say they failed, especially at the year-end review. However, if your company culture embraces failure and if you learn from the failure, then perhaps you can be honest. If not, look towards the next year and work on driving towards what users want. If you have data-driven metrics on your year-end review and no one else does, you will stand head-and-shoulders above your colleagues.

怎么做:请查看您的最后一次年度审查。 您是否能够引用数据驱动的指标,并且可以肯定地证明您发现产品市场合适? 老实说,这是很难的,因为没有人想说他们失败了,尤其是在年终审查时。 但是,如果您的公司文化包含失败,并且您从失败中汲取教训,那么您也许会诚实。 如果不是,请展望明年并努力实现用户的需求。 如果您在年终审查中有数据驱动的指标,而没有其他人这样做,那么您将一臂之力。

Having worked many years in large corporations, I can attest we often came up with the next game-changer by drawing something at a whiteboard. We then self-congratulated our brilliance and spent six months building. This justified why our bonuses should be given even though the users didn’t want what we built.

在大型公司工作了多年之后,我可以证明我们经常通过在白板上画一些东西来提出下一个游戏规则改变者。 然后,我们向自己的辉煌表示了祝贺,并花了六个月的时间进行建设。 这证明了即使用户不想要我们建造的东西也应该给予我们奖金的理由。

结论 (Conclusion)

Finding product market fit is hard — if it were easy everyone would be doing it. Even if you’re practicing building MVPs and have a holistic view of your company, you still might not have hit the mark with your users (achieving the hockey-stick growth). The best thing to do is keep trying. And always be asking yourself, “Am I building products users want?” or “Am I falling into one of the traps of product market fit?”

要找到适合市场的产品很难-如果容易的话,每个人都会这样做。 即使您正在练习建立MVP并全面了解您的公司,您仍可能无法吸引用户(实现曲棍球增长)。 最好的办法是继续尝试。 并总是问自己:“我在建造用户想要的产品吗?” 或“我是否陷入了适合产品市场的陷阱之一?”

About the Author: Geoffrey Bourne is the CEO and founder of RETIRETY — helping people in or near retirement find a better way to retire.

关于作者: 杰弗里·伯恩 ( Geoffrey Bourne)是RETIRETY的首席执行官和创始人-帮助退休或接近退休的人们找到更好的退休方法。

谢谢阅读! (Thanks for reading!)

如果您喜欢这篇文章,请随时点击下面的鼓掌按钮? 帮助别人找到它! (If you enjoyed this article, feel free to hit that clap button below ? to help others find it!)

翻译自: https://www.freecodecamp.org/news/its-a-trap-8-ways-to-tell-you-re-building-something-no-one-wants-ea67299ef14b/

k8s crd构建方法

相关文章:

iOS开发 - 线程与进程的认识与理解

进程: 进程是指在系统中正在运行的一个应用程序,比如同时打开微信和Xcode,系统会分别启动2个进程;每个进程之间是独立的,每个进程均运行在其专用且受保护的内存空间内;线程: 一个进程要想执行任务,必须得有…

Winform开发中常见界面的DevExpress处理操作

我们在开发Winform程序的时候,需要经常性的对界面的一些控件进行初始化,或者经常简单的封装,以方便我们在界面设计过程中反复使用。本文主要介绍在我的一些项目中经常性的界面处理操作和代码,以便为大家开发的时候提供必要的参考。…

5 OC 中的三种对象

目录 OC 中对象的分类 一 instance 对象 二 类对象 三 元类对象 总结: OC 中对象的分类 instance 对象 类对象 元类对象 一 instance 对象 内存中包含哪些信息 isa 指针 其他成员的变量Student *stu1 [[Student alloc]init]; 以上的stu1 就是实例对象 二 类对象 以…

travis ci_如何使用Travis CI和GitHub进行Web开发工作流程

travis ciby Vijayabharathi Balasubramanian通过Vijayabharathi Balasubramanian 如何使用Travis CI和GitHub进行Web开发工作流程 (How to use Travis CI and GitHub for your web development workflow’s heavy lifting) It’s common to hack together apps on CodePen wh…

android.view.ViewRoot$CalledFromWrongThreadException的解决办法

android 是不允许子线程直接更新UI的,如果一定要在子线程直接更新UI就会出现android.view.ViewRoot$CalledFromWrongThreadException: Only the original thread that created a view hierarchy can touch its views.大概意思就是说 只有原来创建找个视图hierarchy的…

6 OC中 isa 和 superclass 的总结

目录 一 关于isa 和 superclass 的总结 二 为什么基类的metaclass 的superclass 指向的是基类的类 三 isa 的细节问题 总结如下: instance 的isa 指向是classclass 的isa 指向是metaclassmetaclass 的isa指向是基类的imetaclassclass 的superclass 指向的是父类…

opencv下指定文件夹下的图片灰度化(图片的读取与保存)-------简单记录

对于此功能其实很简单&#xff1a;主要是在c方面的字母数字的拼接问题存在一定的问题。C数字字母拼接问题&#xff1a; 1 #include <fstream> 2 #include <string> 3 #include <iostream> 4 #include "highgui.h" 5 #include <cv.h> 6 #…

css菜单缓慢滑动_如何使用HTML,CSS和JavaScript构建滑动菜单栏

css菜单缓慢滑动by Supriya Shashivasan由Supriya Shashivasan 如何使用HTML&#xff0c;CSS和JavaScript构建滑动菜单栏 (How to build a sliding menu bar using HTML, CSS and JavaScript) A menu is what you look for when you land at a website. It has options and gi…

素数环问题---深度搜索遍历

1264: 素数环 时间限制: 1 Sec 内存限制: 128 MB提交: 29 解决: 8[提交][状态][讨论版]题目描述 有一个长度为n的环形序列由1,2,3,...,n组成&#xff0c;环中相邻两个整数和均为素数。你需要找到所有满足条件的环。输入 输入n表示环的长度&#xff08;n<16&#xff09;输出…

android之Notification通知

我们在用手机的时候&#xff0c;如果来了短信&#xff0c;而我们没有点击查看的话&#xff0c;是不是在手机的最上边的状态栏里有一个短信的小图标提示啊&#xff1f;你是不是也想实现这种功能呢&#xff1f;今天的Notification就是解决这个问题的。 package cn.com.chenzheng_…

7 OC 中class 类的结构

目录 一 OC 中class 的结构 https://opensource.apple.com/tarballs/objc4/ 在最新的objc源码中 化繁就简来看的话 是以下结构 struct objc_class : objc_object {objc_class(const objc_class&) delete;objc_class(objc_class&&) delete;void operator(con…

apple id无法创建_我们如何使用Apple的学习框架来创建我们的第一个应用程序

apple id无法创建by Jonata Corra由JonataCorra 我们如何使用Apple的学习框架来创建我们的第一个应用程序 (How we used Apple’s learning framework to create our first app) After one month of work, my team and I finished the first version of Echo, our tracker iOS…

个人作业1:小学四则运算——基于控制台

a.需求分析&#xff1a; 自动生成小学四则运算题目的命令行 “软件”&#xff0c;满足以下需求&#xff1a; 除了整数以外&#xff0c;还要支持真分数的四则运算&#xff0c;真分数的运算&#xff0c;例如&#xff1a;1/6 1/8 7/24运算符为 , −, , 并且要求能处理用户…

getchar返回int类型

#include <stdio.h> /* copy input to output; 2nd version */main(){int c;c getchar();while(c ! EOF){putchar(c);c getchar();}} 直觉告诉我getchar返回值应该是char类型的&#xff0c;这个地方为什么不能用char类型来存储getchar()的返回值呢&#xff1f; 其实文中…

8 iOS中KVO 的本质

前言本质 Automatic key-value observing is implemented using a technique called isa-swizzling 这计划的意思就是 自动的键值观察的实现基于 isa-swizzling 原理 1.KVO是基于runtime机制实现的 2.当某个类的属性对象第一次被观察时&#xff0c;系统就会在运行期动态地创…

完成工作表-使用Google Spreadsheets作为数据后端

by Gilad Dayagi通过吉拉德达亚吉 完成工作表-使用Google Spreadsheets作为数据后端 (Get Sheet Done — using Google Spreadsheets as your data backend) If you want to rapidly prototype your next web apps, try using Google Spreadsheets as your data backend.如果您…

BIEE-CSS样式大全

字体属性&#xff1a;(font) 大小 {font-size: x-large;}(特大) xx-small;(极小) 一般中文用不到&#xff0c;只要用数值就可以&#xff0c;单位&#xff1a;PX、PD 样式 {font-style: oblique;}(偏斜体) italic;(斜体) normal;(正常) 行高 {line-height: normal;}(正常) 单位&…

基于verilog的FPGA编程经验总结(XILINX ISE工具)

1.用ISE仿真的时候.所用变量一定要初始化. ISE默认初始量为"XXXXX", 而Quarters是默认为"00000"的, 其实实际上, 下到FPGA里后也是默认为0的,只是可以说ISE严谨得令人DT吧.比如说用一个累加器, result ABresult ,必须保证在某一刻A, B, result都为定值时,…

6 OC 中的isa 指针

目录 一 isa 指针 二 类对象中的superclass 一 isa 指针 isa 指针 &#xff0c;OC 中的对象都是有的 如下图所示&#xff0c;实例对象isa 指针指向 类对象&#xff0c;类对象的isa 指针指向 元类对象 二 类对象中的superclass superclass 有什么用呢&#xff1f; 比如说创…

btf-raft共识算法_了解Raft共识算法:学术文章摘要

btf-raft共识算法by Shubheksha通过Shubheksha 了解Raft共识算法&#xff1a;学术文章摘要 (Understanding the Raft consensus algorithm: an academic article summary) This post summarizes the Raft consensus algorithm presented in the paper In Search of An Underst…

iOS asset 中定义颜色,xib中便捷访问

在aseet 中定义一个颜色 这样就可以在xib 中访问颜色了&#xff0c;这样就不用重复的去输入

三种序列化方式性能比较

一下代码比较了二进制序列化、xml序列化、Protobuf序列化的运行时间&#xff0c;可是代码显得十分冗余&#xff0c;是否有大神可以指点一二&#xff0c;万分感谢 using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.IO; usi…

mac mini 装UBUNTU后没有WIFI解决办法

1、在终端中运行如下命令&#xff0c;重新安装b43相关的全部驱动和firmware: 复制代码代码如下:sudo apt-get install bcmwl-kernel-source #Broadcom 802.11 Linux STA 无线驱动源sudo apt-get install broadcom-sta-commonsudo apt-get install broadcom-sta-sourcesudo apt-…

区块链c端应用小程序_区块链如何真正起作用? 我建立了一个应用程序向您展示。...

区块链c端应用小程序by Sean Han通过肖恩韩 区块链如何真正起作用&#xff1f; 我建立了一个应用程序向您展示。 (How does blockchain really work? I built an app to show you.) According to Wikipedia, a blockchain is:根据维基百科&#xff0c;一个区块链是&#xff1…

HDU 4913 Least common multiple

/* hdu4913 Least common multiple http://acm.hdu.edu.cn/showproblem.php?pid4913 离散化 线段树 统计逆序数思想 tips: 1、线段树中一定要到处都取模&#xff0c;否则wa。。。 2、lazy是乘积的形式出现&#xff0c;不是加和*/ #include <cstdio> #include <algori…

JS ES6 实用笔记

微信小程序开发交流qq群 581478349 承接微信小程序开发。扫码加微信。 这篇博文我会一直更新。 一.导出导入的两中方式 1.export //demo1.js export const a 6 导入语法为&#xff1a; import {a} form demo1 2.export default //demo2.js export default const b 6 …

extjs editgrid增加一行

Ext.onReady(function(){ /* * EditorGridPanel的工作过程 * 1、用户点击单元格 * 2、单元格按照预设的组件显示单元格的内容并处于编辑状态 * 3、离开单元格的编辑状态 * 4、更新编辑后的内容&#xff0c;出现三角号表示已经被修改过 * 5、程序内部变化&#xff1a;将记录设置…

unity 骨骼击碎_保证击碎$ 100挑战的创新策略

unity 骨骼击碎by Glenn Gonda由Glenn Gonda 保证击碎$ 100挑战的创新策略 (A Creative Strategy Guaranteed to Crush the $100 Challenge) Before I became a software engineer, I made my living as a recording studio engineer. I have a non-traditional background an…

mac下安装libpng环境

用go写一个爬虫工具时需要使用一个go的库&#xff0c;而这个库有需要使用libpng库&#xff0c;不然编译就会提示说 png.h找不到等之类的信息&#xff0c;于是想到应该和windows一样需要安装gcc环境&#xff0c;然后让gcc里安装libpng这个库&#xff0c; 解决办法&#xff1a; 终…

linux oracle修改编码utf8

$ sqlplus /nolog SQL> connect sys/oracle as sysdba SQL> startup 如何设置ORACLE数据库的编码&#xff08;ZHS16GBK&#xff09;修改成UTF8 SQL> shutdown immediate; SQL> startup mount; SQL> alter system enable restricted session; SQL> alter sy…