DB Engine :: Re-indexing And Update Stats Of Mixed Compatibility Databases In Server 2008r2

We have recently migrated quite a databases around 20 from SQL 2000 and 2005 to SQL server 2008R2.

I am using Ola's script for index maintenance for those with compatibility level above 80 as i heard it supports that way.

Hence separated in 2 way job where for those with compatibility level 80, we are running job with below query on each database with 80 as compared

USE ABC
GO
EXEC sp_MSforeachtable @command1="print '?' DBCC DBREINDEX ('?', ' ', 80)"
GO
EXEC sp_updatestats
GO

I am not sure if this is the only way in for those databases, because we are seeing the database getting because of that somewhere using above query.( seems log file filling very rapidly).

But above is not the case with those databases , with compatibility 90 and above.