2026-03-12 20:23:15

idev/fdb_status.sql

@@ -0,0 +1,70 @@
+-- +----------------------------------------------------------------------------+
+-- |                          Jeffrey M. Hunter                                 |
+-- |                      jhunter@idevelopment.info                             |
+-- |                         www.idevelopment.info                              |
+-- |----------------------------------------------------------------------------|
+-- |      Copyright (c) 1998-2012 Jeffrey M. Hunter. All rights reserved.       |
+-- |----------------------------------------------------------------------------|
+-- | DATABASE : Oracle                                                          |
+-- | FILE     : fdb_status.sql                                                  |
+-- | CLASS    : Flashback Database                                              |
+-- | PURPOSE  : Provide an overview of the current state of the Flashback       |
+-- |            database feature. First check that Flashback Database is        |
+-- |            enabled. Next, provide an overview of the retention policy      |
+-- |            settings and estimated size of the Flashback Logs.              |
+-- | NOTE     : As with any code, ensure to test this script in a development   |
+-- |            environment before attempting to run it in production.          |
+-- +----------------------------------------------------------------------------+
+
+SET TERMOUT OFF;
+COLUMN current_instance NEW_VALUE current_instance NOPRINT;
+SELECT rpad(sys_context('USERENV', 'INSTANCE_NAME'), 17) current_instance
+FROM dual;
+SET TERMOUT ON;
+
+PROMPT 
+PROMPT +------------------------------------------------------------------------+
+PROMPT | Report   : Flashback Database Status                                   |
+PROMPT | Instance : &current_instance                                           |
+PROMPT +------------------------------------------------------------------------+
+
+SET ECHO        OFF
+SET FEEDBACK    6
+SET HEADING     ON
+SET LINESIZE    180
+SET PAGESIZE    50000
+SET TERMOUT     ON
+SET TIMING      OFF
+SET TRIMOUT     ON
+SET TRIMSPOOL   ON
+SET VERIFY      OFF
+
+CLEAR COLUMNS
+CLEAR BREAKS
+CLEAR COMPUTES
+
+COLUMN dbid                                HEADING 'DB ID'
+COLUMN name             FORMAT a15         HEADING 'DB Name'
+COLUMN log_mode         FORMAT a18         HEADING 'Log Mode'
+COLUMN flashback_on     FORMAT a18         HEADING 'Flashback DB On?'
+
+SELECT
+    dbid
+  , name
+  , log_mode
+  , flashback_on
+FROM v$database;
+
+COLUMN oldest_flashback_scn                               HEADING 'Oldest|Flashback SCN'
+COLUMN oldest_flashback_time    FORMAT a21                HEADING 'Oldest|Flashback Time' JUST right
+COLUMN retention_target         FORMAT 999,999            HEADING 'Retention|Target (min)'
+COLUMN flashback_size           FORMAT 9,999,999,999,999  HEADING 'Flashback|Size'
+COLUMN estimated_flashback_size FORMAT 9,999,999,999,999  HEADING 'Estimated|Flashback Size'
+
+SELECT
+    oldest_flashback_scn
+  , TO_CHAR(oldest_flashback_time, 'DD-MON-YYYY HH24:MI:SS') oldest_flashback_time
+  , retention_target
+  , flashback_size
+  , estimated_flashback_size
+FROM v$flashback_database_log;