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SQL Query: 3 Methods for Calculating Cumulative SUM

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SQL provides various constructs for calculating cumulative sums, offering flexibility and efficiency in data analysis. In this article, we explore three distinct SQL queries that facilitate the computation of cumulative sums. Each query leverages different SQL constructs to achieve the desired outcome, catering to diverse analytical needs and preferences. Using Window Functions (e.g., PostgreSQL, SQL Server, Oracle) SELECT id, value, SUM(value) OVER (ORDER BY id) AS cumulative_sum  FROM your_table; This query uses the SUM() window function with the OVER clause to calculate the cumulative sum of the value column ordered by the id column. Using Subqueries (e.g., MySQL, SQLite): SELECT t1.id, t1.value, SUM(t2.value) AS cumulative_sum FROM your_table t1 JOIN your_table t2 ON t1.id >= t2.id GROUP BY t1.id, t1.value ORDER BY t1.id; This query uses a self-join to calculate the cumulative sum. It joins the table with itself, matching rows where the id in the first table is greater than or

Career in analytics these 3 are top tips you need

There is a big question to be successful in analytics career. I am giving most popular ideas to be successful in this analytics career.
tips on analytics career
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There are absolutely three...
The tip number one is you need to be familiar with different types of analytics.
  1. Web Analytics
  2. Financial Analytics
  3. Marketing Analytics
  4. Education Analytics
  5. Retail Analytics
  6. Health Care Analytics
The second one is you should have right kind of training at less expensive way.

In the booming Analytics Industry, one needs right course of training and experience, and working experience of case studies on selected analytics area, really boost your career. I am sure Udemy is offering lot of courses.

The third rule and idea is correct mindset

Assertive Communication 

BE PROACTIVE - Be Proactive is about taking responsibility for your life. You can't keep blaming everything on your parents or grandparents. Proactive people recognize that they are "response-able." They don't blame genetics, circumstances, conditions, or conditioning for their behaviour. They know they choose their behaviour. Reactive people, on the other hand, are often affected by their physical environment. They find external sources to blame for their behaviour.

Time management

PUT FIRST THINGS FIRST -What are "first things?" First things are those things you, personally, find of most worth. If you put first things first, you are organizing and managing time and events according to the personal priorities you established.

Positive thinking


THINK WIN WIN -Win-win sees life as a cooperative arena, not a competitive one. Win-win is a frame of mind and heart that constantly seeks mutual benefit in all human interactions. Win-win means agreements or solutions are mutually beneficial and satisfying.

Video on 7 habits of effective people

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