Defragmenter

PCC provides the Defragmenter utility to enable you to detect data file fragmentation that may be causing loss of engine performance. Defragmenter also enables you to correct the fragmentation by rearranging records that have become out of order and removing unused space left by deletions. Defragmenting a file does not alter its data in any way, and records can be created, read, updated, or deleted while the files that store them are being defragmented. You can use Defragmenter features during database engine execution with no need for down time or disruption of business operations in most cases.

See Monitoring Data File Fragmentation in Advanced Operations Guide.