Percentage_of

The Percentage_of function calculates the percentage value where the condition is met. The following illustrates the syntax of the percentage_of function:

Stream=FIREWALL | groupby dstip | select dstip, percentage_of (dstport==23) | having percentage_of_col1>0

Here,

• Stream is Firewall
• Groupby function allows to organize similar data into groups i.e. groupby destination IP Address.
• Select function helps you to retrieve records from one or more tables, the records retrieved are known as a result set.
• The percentage_of (condition) function returns the percentage value of a numeric column.

In this example, on execution it should retrieve all fields for each event where the stream is a firewall; it retrieves the percentage value in each group. The output is shown as below: