Which keyword is used to rename the resulting attribute after the application of the aggregation function?

The keyword used to rename the resulting attribute after the application of the aggregation function is "AS". This keyword is used in SQL (Structured Query Language) to assign a new name to the result of an aggregation function. Here is a step by step guide:

1. First, you specify the aggregation function you want to use. This could be SUM, AVG, COUNT, MAX, MIN, etc. For example, SELECT COUNT(column_name)

2. Then, you use the "AS" keyword to assign a new name to the result of this function. For example, SELECT COUNT(column_name) AS new_name

3. From there, you specify the rest of your query. For example, FROM table_name

So, a complete query might look like this: SELECT COUNT(column_name) AS new_name FROM table_name

In this query, "new_name" is the name that will be given to the result of the COUNT function.