Below is the script to retrieve Oracle Database information:
A query that retrieves the I/O information from the datafiles
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SET PAGESIZE 1000 SELECT Substr(d.name,1,50) "File Name", f.phyblkrd "Blocks Read", f.phyblkwrt "Blocks Writen", f.phyblkrd + f.phyblkwrt "Total I/O" FROM v$filestat f, v$datafile d WHERE d.file# = f.file# ORDER BY f.phyblkrd + f.phyblkwrt DESC; SET PAGESIZE 18 |
Query to retrieve the table dimensions in Megabytes
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SELECT owner, table_name, TRUNC(sum(bytes)/1024/1024) Meg FROM (SELECT segment_name table_name, owner, bytes FROM dba_segments WHERE segment_type = 'TABLE' UNION ALL SELECT i.table_name, i.owner, s.bytes FROM dba_indexes i, dba_segments s WHERE s.segment_name = i.index_name AND s.owner = i.owner AND s.segment_type = 'INDEX' UNION ALL SELECT l.table_name, l.owner, s.bytes FROM dba_lobs l, dba_segments s WHERE s.segment_name = l.segment_name AND s.owner = l.owner AND s.segment_type = 'LOBSEGMENT' UNION ALL SELECT l.table_name, l.owner, s.bytes FROM dba_lobs l, dba_segments s WHERE s.segment_name = l.index_name AND s.owner = l.owner AND s.segment_type = 'LOBINDEX') WHERE owner in UPPER('&owner') GROUP BY table_name, owner HAVING SUM(bytes)/1024/1024 > 10 /* Ignore really small tables */ ORDER BY SUM(bytes) desc ; |
Automatic Storage Management...
12 March 2019