2026-03-12 20:23:15

vdh/show_compression_counts.sql

@@ -0,0 +1,83 @@
+-- report on the number of compressed objects (per owner, object_type and compression type)
+
+column owner format a30
+column object_type format a20
+column compress_for format a30
+column counted format 9G999G999G999
+
+break on owner skip 1 on page
+
+select
+  owner,
+  compress_for, 
+  object_type,
+  count(*)  counted
+from
+  ( select
+      owner,
+      'TABLE' as object_type,
+      compress_for 
+    from
+      dba_tables
+    where
+      nvl(compression, 'DISABLED') != 'DISABLED'
+    union all
+    select
+      table_owner,
+      'TABLE_PART' as object_type,
+      compress_for
+    from
+      dba_tab_partitions
+    where
+      nvl(compression, 'DISABLED') != 'DISABLED'
+      and compression != 'NONE'
+    union all
+    select
+      table_owner,
+      'TABLE_SUBPART' as object_type,
+      compress_for
+    from
+      dba_tab_subpartitions
+    where
+      nvl(compression, 'DISABLED') != 'DISABLED'
+    union all
+    select
+      owner,
+      'INDEX' as object_type,
+      decode(compression, 'ENABLED', 'BASIC', compression)
+    from
+      dba_indexes
+    where
+      nvl(compression, 'DISABLED') != 'DISABLED'
+    union all
+    select
+      index_owner,
+      'INDEX_PART' as object_type,
+      decode(compression, 'ENABLED', 'BASIC', compression)
+    from
+      dba_ind_partitions
+    where
+      nvl(compression, 'DISABLED') != 'DISABLED'
+      and compression != 'NONE'
+    union all
+    select
+      index_owner,
+      'INDEX_SUBPART' as object_type,
+      decode(compression, 'ENABLED', 'BASIC', compression)
+    from
+      dba_ind_subpartitions
+    where
+      nvl(compression, 'DISABLED') != 'DISABLED'
+  )
+group by
+  owner,
+  object_type,
+  compress_for
+order by
+  owner,
+  compress_for,
+  object_type
+;
+
+clear computes
+clear breaks