Teljes szöveg:
- Hasznos TSM SQL lekérdezések
- gyzés): select unique, message as last_message, date_time, cast(diff/60 as dec(6,0)) from (select unique, message, date_time, cast(date_time-lead(date_time) over (order by date_time) as dec(6,0)) as diff from actlog where date_time>curren