Active Alert list/summry mail

Hi

I will like to send summary (alert)  email of all active alert that are not acknowledge like it to run every 30 min

I can see that you can use external syslog server like splunk to run that summary

Acknowledge Solarwinds Orion alerts by email (using Splunk)

Is there a way with custom SQL that will take all active alert in the last 30 min push to one email to TS and  NOC?