I am trying to Rebuild and Reorganize index on table. Before i Rebuild/Re Organize Total Fragmentation is 66.67%, but after i Rebuild/Re Organize the Percentage doesn't change ( Total Fragmentation is 66.67%). Is any one can help me or guide me why he doesn't change? and anyone have handy script to Rebuild/Re Organize and update statistics on whole table.
2) Other question its a good idea if i run (Rebuild/Re organize index and Update Statistics on Database) every 30minutes or every day?
It's a good idea to base reorganize / rebuild operations on fragmentation level. In a 24/7/365 applications, you won't want to run this every 30 minutes as rebuilds can introduce blocking depending on your edition. Ideally, you'll want to stagger the job over non-peak hours as appropriate for your needs.
A quick search found http://ola.hallengren.com as a potential script that will intelligently determine if and when you need to update statistics, rebuild or reorganize. I haven't used it before, so I can't vouch for it, but it should get you on the right track.