Compute a Running Total in PL/SQL
A running total is a cumulative sum of numeric columns of our given datasets. A PL/SQL is a procedural extension of SQL. We can easily write custom scripts to compute a running total. We will loop through each value of our numeric column and maintain the total of a value in a variable. We will discuss two different scenarios to implement running total:
- A Simple Running Total of a Column
- Computing Running Total Separately for each Department
Let’s set up an Environment:
To understand How to Compute a Running Total in PL/SQL we need a table on which we will perform various operations and queries. Here we will consider a table called w3wiki which contains id, name, salary, and department as Columns.
Table – w3wiki
How to Compute a Running Total in PL/SQL
Running total is a cumulative sum of a given data within a specific order. There are numerous use cases for calculating the running total. Calculating the running total helps in making predictions with the data and analyzing recent trends in data. This sometimes also helps in making a visual representation of data.
In this article, we will learn about how to compute a running total in PL/SQL where we can compute a running total with brief examples along with their respective explanations.
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