Please i want to learn search processing language, is there some of video tutorial in?
Take the free Fundamentals 1 class at https://www.splunk.com/en_us/training/free-courses/splunk-fundamentals-1.html
Also, Splunk has a YouTube channel at https://www.youtube.com/user/splunkvideos
There is a quick reference guide that is very helpful.
Also, Splunk has a pretty well-stocked YouTube page.