2026-03-12 20:23:15

vdh/part_info.sql

@@ -0,0 +1,186 @@
+-- show information about a partitoned table
+
+set verify off
+set linesize 300
+
+column owner format a30
+column table_name format a30
+column column_name format a30
+column interval format a40
+#column high_value format a25
+column high_value format a85
+column interval format a3
+column subpartition_count format 9999999 heading "#SUBPART"
+column partition_name format a30
+column subpartition_name format a30
+column column_position format 99999
+column interval format a3
+column subpartition_position format 99999 heading "POS"
+column partition_position format 99999 heading "POS"
+column MB format 9G999G990D99
+
+accept OWNER prompt 'Owner: '
+accept TABLE prompt 'Table Name: '
+
+
+prompt
+prompt ###basic info
+
+select
+  owner,
+  table_name,
+  partitioning_type,
+  subpartitioning_type,
+  status,
+  interval
+from 
+  dba_part_tables
+where
+  owner = '&&OWNER'
+  and table_name = '&&TABLE'
+;
+
+
+prompt
+prompt ###info on partition columns
+
+select
+  column_position,
+  column_name
+from
+  dba_part_key_columns
+where
+  owner = '&&OWNER'
+  and name = '&&TABLE'
+order by
+  column_position
+;
+
+
+prompt
+prompt ###info on sub-partition columns
+
+select
+  column_position,
+  column_name
+from
+  dba_subpart_key_columns
+where
+  owner = '&&OWNER'
+  and name = '&&TABLE'
+order by
+  column_position
+;
+
+
+prompt
+prompt ###details on partitions
+
+compute sum of mb on report
+
+select
+  part.partition_name,
+  part.composite,
+  part.subpartition_count,
+  part.high_value,
+  part.partition_position,
+  part.tablespace_name,
+  part.compression,
+  part.compress_for,
+  part.interval,
+  part.segment_created,
+  (seg.bytes/1024/1024) MB
+from
+  dba_tab_partitions part,
+  dba_segments seg
+where
+  part.table_owner = seg.owner(+)
+  and part.table_name = seg.segment_name(+)
+  and part.partition_name = seg.partition_name(+)
+  and part.table_owner = '&&OWNER'
+  and part.table_name = '&&TABLE'
+order by
+  part.partition_position
+;
+
+clear computes
+
+
+prompt
+prompt ###details on sub-partitions
+
+break on partition_name skip page duplicates
+compute sum of mb on partition_name
+compute sum of mb on report
+/*
+select
+  spart.partition_name,
+  spart.subpartition_name,
+  spart.high_value,
+  spart.subpartition_position,
+  spart.tablespace_name,
+  spart.compression,
+  spart.compress_for,
+  spart.interval,
+  spart.segment_created,
+  (seg.bytes/1024/1024) MB
+from
+  dba_tab_subpartitions spart,
+  dba_tab_partitions part,
+  dba_segments seg
+where
+  spart.table_owner = part.table_owner
+  and spart.table_name = part.table_name
+  and spart.partition_name = part.partition_name
+  and spart.table_owner = seg.owner(+)
+  and spart.table_name = seg.segment_name(+)
+  and spart.subpartition_name = seg.partition_name(+)
+  and spart.table_owner = '&&OWNER'
+  and spart.table_name = '&&TABLE'
+order by
+  part.partition_position,
+  spart.subpartition_position
+;
+
+*/
+
+--switched to ansi join syntax (as excercise  ;-)  
+select
+  spart.partition_name,
+  spart.subpartition_name,
+  spart.high_value,
+  spart.subpartition_position,
+  spart.tablespace_name,
+  spart.compression,
+  spart.compress_for,
+  spart.interval,
+  spart.segment_created,
+  (seg.bytes/1024/1024) MB
+from
+  dba_tab_subpartitions                                       spart
+    join dba_tab_partitions                                   part
+      on ( part.table_owner = spart.table_owner
+           and part.table_name = spart.table_name
+           and part.partition_name = spart.partition_name
+         )
+      left outer join dba_segments                            seg
+        on ( seg.owner = spart.table_owner
+             and seg.segment_name = spart.table_name
+             and seg.partition_name = spart.subpartition_name
+           )
+where
+  spart.table_owner = '&&OWNER'
+  and spart.table_name = '&&TABLE'
+order by
+  part.partition_position,
+  spart.subpartition_position
+;
+
+
+clear breaks
+clear computes
+
+
+undef OWNER
+undef TABLE
+