{"id":9801,"date":"2017-03-04T11:35:17","date_gmt":"2017-03-04T10:35:17","guid":{"rendered":"https:\/\/www.dbi-services.com\/blog\/is-your-dba_feature_usage_statistics-up-to-date\/"},"modified":"2023-06-08T16:32:39","modified_gmt":"2023-06-08T14:32:39","slug":"is-your-dba_feature_usage_statistics-up-to-date","status":"publish","type":"post","link":"https:\/\/www.dbi-services.com\/blog\/is-your-dba_feature_usage_statistics-up-to-date\/","title":{"rendered":"Is your DBA_FEATURE_USAGE_STATISTICS up-to-date?"},"content":{"rendered":"

By Mouhamadou Diaw<\/strong><\/p>\n

Last day we were doing a licensing review for a client. As many dbas may already know, this require to execute some oracle scripts at OS level and database level.
\nAmong these scripts we have the script options_packs_usage_statistics.sql (docId 1317265.1) which is an official oracle script to check the usage of separately licensed Oracle Database Options\/Management Packs
\nThis script is using the DBA_FEATURE_USAGE_STATISTICS table to retrieve info. And sometimes it may happen that data of this table are not recent.
\nOne important thing is that the DBA_FEATURE_USAGE_STATISTICS are based on the most recent sample in the column LAST_SAMPLE_DATE. In our case we got following results (outputs are truncated).
\n
\nSYSDATE |
\n-------------------|
\n2017.02.17_13.36.44|
\n<\/code>
\n
\nPRODUCT |LAST_SAMPLE_DATE |
\n-------------------------------|-------------------|
\nActive Data Guard |2014.01.02_13.37.53|
\nAdvanced Analytics |2014.01.02_13.37.53|
\nAdvanced Compression |2014.01.02_13.37.53|
\nAdvanced Security |2014.01.02_13.37.53|
\nDatabase Vault |2014.01.02_13.37.53|
\nDiagnostics Pack |2014.01.02_13.37.53|
\nLabel Security |2014.01.02_13.37.53|
\nOLAP |2014.01.02_13.37.53|
\nPartitioning |2014.01.02_13.37.53|
\nReal Application Clusters |2014.01.02_13.37.53|
\nReal Application Testing |2014.01.02_13.37.53|
\nTuning Pack |2014.01.02_13.37.53|
\n.Exadata |2014.01.02_13.37.53|
\n<\/code>
\nIf we compare sysdate and the date of the last_sample_date, we can see that we have to manually refresh our DBA_FEATURE_USAGE_STATISTICS data.
\nOne way to do this is to run the procedure
\n
\nexec dbms_feature_usage_internal.exec_db_usage_sampling(SYSDATE);
\n<\/code>
\nIn our case the procedure did not refresh our data despite the fact that there was any error and we received message that procedure was successfully executed.
\n
\nSQL> exec dbms_feature_usage_internal.exec_db_usage_sampling(SYSDATE);
\nPL\/SQL procedure successfully completed.
\n<\/code>
\n
\nSQL> select max(last_sample_date) from dba_feature_usage_statistics order by 1;
\nMAX(LAST_
\n---------
\n02-JAN-14
\n<\/code>
\nFollowing oracle document 1629485.1 we were able to refresh the last_sample_date using this ALTER SESSION
\n
\nSQL> alter session set \"_SWRF_TEST_ACTION\"=53;
\nSession altered.
\n<\/code>
\n
\nSQL> alter session set NLS_DATE_FORMAT='DD\/MM\/YYYY HH24:MI:SS';
\nSession altered.
\n<\/code>
\n
\nSQL> select MAX(LAST_SAMPLE_DATE) from dba_feature_usage_statistics;
\nMAX(LAST_SAMPLE_DAT
\n-------------------
\n16\/02\/2017 13:44:46
\n<\/code>
\nHope this article may help<\/p>\n","protected":false},"excerpt":{"rendered":"

By Mouhamadou Diaw Last day we were doing a licensing review for a client. As many dbas may already know, this require to execute some oracle scripts at OS level and database level. Among these scripts we have the script options_packs_usage_statistics.sql (docId 1317265.1) which is an official oracle script to check the usage of separately […]<\/p>\n","protected":false},"author":27,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[229],"tags":[1038,1039],"type_dbi":[],"class_list":["post-9801","post","type-post","status-publish","format-standard","hentry","category-database-administration-monitoring","tag-dba_feature_usage_statistics","tag-oracle-licensing"],"acf":[],"yoast_head":"\nIs your DBA_FEATURE_USAGE_STATISTICS up-to-date? - dbi Blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.dbi-services.com\/blog\/is-your-dba_feature_usage_statistics-up-to-date\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Is your DBA_FEATURE_USAGE_STATISTICS up-to-date?\" \/>\n<meta property=\"og:description\" content=\"By Mouhamadou Diaw Last day we were doing a licensing review for a client. 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