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<p>Let’s say we have a table with an <code>id</code> and <code>name</code> fields. The table holds over 100 million rows and we want to sample a random row in the table without throttling the database.</p>

<p>Write a query to randomly sample a row from this table.</p>

<p><strong>Input:</strong></p>

<p><code>big_table</code> table</p>

<table>
<thead>
<tr>
<th>Columns</th>
<th>Type</th>
</tr>
</thead>

<tbody>
<tr>
<td><code>id</code></td>
<td>INTEGER</td>
</tr>

<tr>
<td><code>name</code></td>
<td>VARCHAR</td>
</tr>
</tbody>
</table>


Write a query to randomly sample a row from a big table.

Random SQL Sample

<p>Let’s say that your company is running a standard control and variant AB test on a feature to increase conversion rates on the landing page. The PM checks the results and finds a .04 p-value.</p>

<p>How would you assess the validity of the result?</p>


Experiment Validity

<p>Let’s say you work for a social media company that has just done a launch in a new city. Looking at weekly metrics, you see a slow decrease in the average number of comments per user from January to March in this city.</p>

<p>The company has been consistently growing new users in the city from January to March.</p>

<p>What are some reasons why the average number of comments per user would be decreasing and what metrics would you look into?</p>


<p>What metric could be used to measure if active users are still engaging on the platform despite an overall decrease in the average number of comments per user?</p>

What metric could be used to measure if active users are still engaging on the platform despite an overall decrease in the average number of comments per user?

Decreasing Comments

How would you investigate a decline in the average number of comments per user?

Henry schein one Salaries by Position

<p>This position is 100% remote within the United States. Unfortunately, Henry Schein One is unable to hire individuals residing in Alaska, North Dakota, Hawaii, West Virginia, Maryland, Delaware, Washington DC, Puerto Rico, or other US Territories at this time. This role will only consider W2 candidates and not C2C candidates. Job Summary This position is responsible for working on a cross functional scrum team to breakdown epics and user stories and deliver high quality and valuable software to customers. Help the team to grow in experience and knowledge by mentoring junior members of the team to improve in their abilities in the art of engineering software. Assist in making strategic decisions about the implementation and architecture of software by following the guidance of the Product Architect. What you will do Develop software that meets/exceeds the expectations of users Drive continuous delivery and improve team DORA metrics Work with other Software Engineers to develop, test and measure the quality of software before automatically deploying using CI/CD best practices Collaborate with internal and external teams, leading discussions and making decisions that meet business needs Communicate effectively with executive leadership and architects on industry best practices and quality strategic plans Evaluate and recommend software design patterns, frameworks and solutions that allow for a continuous integration and a continuous delivery of code. Work with SRE engineers to incorporate quality delivery practices in build and deployment pipelines to address infrastructure as required. Establish a high level of code quality practices, participating in code reviews Attend all meetings necessary for the seamless delivery of the product as part of the SDLC Capable of developing and communicating cross team architectural solutions Provide recommendations for continuous improvement on company wide applications Provide oversight over multiple domains Improves operations by conducting systems analysis, recommending changes in policies and procedures Communicate architectural standards and mentor other developers in their use Provide leadership to engineering guilds Accomplish engineering missions by delivering results as needed Investigate problem areas, defining and facilitating solutions Qualifications Must haves: Bachelor's Degree in Computer Science or equivalent working experience 8 years of software development experience Expertise and in-depth knowledge of React, JavaScript and Next.js Knowledge of Microservices, Event Sourced Architecture, API Gateway, Domain Driven Design, Event Sourcing, Kubernetes, Docker, Java, Spring, Node.js, Grails, Python, Bash, SQL, NoSQL, Graph DB's, Kafka, Backbone, Vue.js, Authentication/Authorization (JWT) Excellent ability to derive and design technical specifications and implement code from product and technical requirements Advanced knowledge of database technologies (SQL, NoSQL, Search, In-Memory, Graph, etc.) Advanced knowledge of application design patterns Ability to remain current on new technology within the software industry Excellent ability to problem solve and diagnose in a technical space Domain driven design and ownership Understands and defines cross-team interdependent roadmaps Effectively estimate engineering work within 6-to 12-month timelines with varying degrees of accuracy The posted range for this position is $96,000 - $168,000 which is the expected starting base salary range for an employee who is new to the role to fully proficient in the role. Many factors go into determining employee pay within the posted range including prior experience, current skills, location/labor market, internal equity, etc. This position is eligible for a 12.5% bonus not reflected in the posted range. What you get as a Henry Schein One Employee A great place to work with fantastic people A career in the healthcare technology industry, with the ability to grow and realize your full potential Competitive compensation Excellent benefits package Medical, Dental and Vision Coverage, 401K Plan with Company Match, Flex Time Off, Paid Parental Leave, Short Term Disability, Work Life Assistance Program, Health Savings and Flexible Spending Accounts, Education Benefits, Worldwide Scholarship Program, Volunteer Opportunities, and more About Henry Schein One Henry Schein One is the global leader in dental management, analytics, communication, and marketing software. Our company's products and services work together as one simple solution to provide users with a seamless and integrated experience. Our company thrives because of our people. We believe in supportive, diverse, and inclusive workforce, inclusive environments, professional development opportunities, and competitive compensation packages. We value innovation, teamwork, and encourage work-life balance. One of many reasons why Henry Schein One (HS1) leads the industry is because of our products, services and most importantly our people. In 2022 HS1 was awarded one of the top places to work for in Utah. To learn more, click here: 2022 Best Companies To Work For | Henry Schein One Henry Schein, Inc. is an Equal Employment Opportunity Employer and does not discriminate against applicants or employees on the basis of race, color, religion, creed, national origin, ancestry, disability that can be reasonably accommodated without undue hardship, sex, sexual orientation, gender identity, age, citizenship, marital or veteran status, or any other legally protected status.</p>

Henry schein one Interview Questions

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Henry schein one Interview Questions

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