Database seems to fragmented

I have one scenario on our live production DB.This problem seems to be like performance perspective.I want your advice and your optimal solution to overcome from this issue.
1Likewise we have our live production system in which we have did some year end activity(purging of old data(delete old data) and this activity did it from the GUI based.We have not to delete all the records from the database but some of record which has been not at all in used.We are willing to go with Truncate command but unfortunately in tools does not provide with truncate command syntax
2After this activity we comes to know database table and as well Indexes are become more fragmented.
3It has also reduce database response time also now days some queries are taking more then 5 min for execution time
4More ever i have checked that all most indexes as well as tables are got fragmented almost.We did some what workaround for this and i.e. rebuild the indexes but still we are facing the same problem because deletion activity happens by the end of month or two month
5for This live production database we don't have the downtime.
Any valuable suggestion will more appreciate

Hi!
I'm sorry to tell you this but you're not in the right forum!
You must go to the DB forum!
Warm regards!
Max.
P.S.
Have you already run the statistics?

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Message was edited by:
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