Question: What do
I do to reclaim disk space by reorganizing fragmented
tables? I need to get a list of my most fragmented
tables. How do I find the most fragmented tables?
Answer: First, read these
important notes on
Oracle table fragmentation
This script will locate and name highly fragmented
table_name,round((blocks*8),2) "size (kb)" ,
round((num_rows*avg_row_len/1024),2) "actual_data (kb)",
- round((num_rows*avg_row_len/1024),2)) "wasted_space (kb)"
(round((blocks*8),2) > round((num_rows*avg_row_len/1024),2))
order by 4 desc;
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