SQL Query | How to calculate Running Totals and Cumulative Sum ? #sqlinterviewquestions

This tutorial discusses How to write a SQL Query to calculate Running Totals or Cumulative Sums on a table.

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[akjay]

If you add the 'rows unbounded preceding' after order by it will fix the running total issue. By default SQL take window range as 'range unbounded preceding'

select *, sum(sal) over(order by job rows unbounded preceding) from emp (In my case 'job' column has duplicate records)

You can test the below two query

select *, sum(sal) over(order by job rows unbounded preceding) from emp

select *, sum(sal) over(order by job range unbounded preceding) from emp

[liamgazz]

What SQL command do u use to calculate values in a specific 4 rows

[isalutefamille]

Does anyone know how can i handle running total when there is an opening balance?

[inhlam]

Select SUM(column value) OVER (PARTITION BY .. ORDER BY ..)
From ..

[explorer_baba]

How we can find running total without using any windows function. Anyone has any idea can share their thoughts.

[tina]

Atleast give the reason of why the cumulative sum of marketing department did not change? why having duplicates is screwing up the sum?

[explorer_baba]

How we can find running total without using any windows function. Anyone has any idea can share their thoughts.