added oracle_table_segments_for_schema.sql

Author: HariSekhon

oracle_table_segments_for_schema.sql

@@ -0,0 +1,42 @@
+--
+--  Author: Hari Sekhon
+--  Date: 2024-10-11 03:24:48 +0300 (Fri, 11 Oct 2024)
+--
+--  vim:ts=4:sts=4:sw=4:et:filetype=sql
+--
+--  https///github.com/HariSekhon/SQL-scripts
+--
+--  License: see accompanying Hari Sekhon LICENSE file
+--
+--  If you're using my code you're welcome to connect with me on LinkedIn and optionally send me feedback to help steer this or other code I publish
+--
+--  https://www.linkedin.com/in/HariSekhon
+--
+
+-- Oracle - Show Tables' Segments Size in a given Tablespace
+--
+-- Tested on Oracle 19c
+
+SELECT
+    segment_name,
+    segment_type,
+    tablespace_name,
+    bytes/1024/1024/1024 AS size_gb,
+    blocks
+FROM
+    dba_segments
+WHERE
+    owner = 'USERS'  -- XXX: Edit this
+        AND
+    segment_type = 'TABLE'
+        AND
+    blocks > 8
+    -- to look at only specific tables
+    --  AND
+    --segment_name IN
+    --('MY_TABLE_1',
+    -- 'MY_TABLE_2',
+    -- 'MY_TABLE_3',
+    -- 'MY_TABLE_4')
+ORDER BY
+    size_gb DESC;