{"id":12087,"date":"2019-05-09T21:20:54","date_gmt":"2019-05-09T21:20:54","guid":{"rendered":"https:\/\/dbtut.com\/?p=12087"},"modified":"2019-05-09T21:20:55","modified_gmt":"2019-05-09T21:20:55","slug":"how-to-disable-system-triggers-in-oracle","status":"publish","type":"post","link":"https:\/\/dbtut.com\/index.php\/2019\/05\/09\/how-to-disable-system-triggers-in-oracle\/","title":{"rendered":"How To Disable System Triggers in Oracle"},"content":{"rendered":"

In the database, it may sometimes be necessary to disable system triggers during operations such as java installation, downgrade, or upgrade. An error in a system trigger that we create can cause serious problems in the database. In these cases, system triggers may need to be disabled.<\/p>\n

To disable system triggers, the value of parameter _system_trig_enabled must be set to false. We can learn the current value of this parameter with the following query.<\/p>\n

SELECT x.ksppinm name, y.ksppstvl VALUE, ksppdesc description\n  FROM x$ksppi x, x$ksppcv y\n WHERE     x.inst_id = USERENV ('Instance')\n       AND y.inst_id = USERENV ('Instance')\n       AND x.indx = y.indx\n       AND x.ksppinm = '_system_trig_enabled'<\/pre>\n
We can change the parameter as follows.<\/p>\n
SQL> alter system set \"_system_trig_enabled\"=false scope=both sid='*';\n\nSystem altered.<\/pre>\n
You can use the following query to find out which triggers will be disabled.<\/p>\n
SELECT a.obj#, a.sys_evts, b.name\n  FROM trigger$ a, obj$ b\n WHERE a.sys_evts > 0 AND a.obj# = b.obj#;<\/pre>\n
The events that the parameter will affect are as follows:<\/p>\n
Resource Manager Events<\/strong><\/p>\n
    \n
  • STARTUP<\/li>\n
  • SHUTDOWN<\/li>\n
  • SERVERERROR<\/li>\n<\/ul>\n
    Client Events<\/strong><\/p>\n
      \n
    • AFTER LOGON<\/li>\n
    • BEFORE LOGOFF<\/li>\n
    • BEFORE CREATE<\/li>\n
    • AFTER CREATE<\/li>\n
    • BEFORE ALTER<\/li>\n
    • AFTER ALTER<\/li>\n
    • BEFORE DROP<\/li>\n
    • AFTER DROP<\/li>\n
    • BEFORE ANALYZE<\/li>\n
    • AFTER ANALYZE<\/li>\n
    • BEFORE ASSOCIATE STATISTICS<\/li>\n
    • AFTER ASSOCIATE STATISTICS<\/li>\n
    • BEFORE AUDIT<\/li>\n
    • AFTER AUDIT<\/li>\n
    • BEFORE NOAUDIT<\/li>\n
    • AFTER NOAUDIT<\/li>\n
    • BEFORE COMMENT<\/li>\n
    • AFTER COMMENT<\/li>\n
    • BEFORE CREATE<\/li>\n
    • AFTER CREATE<\/li>\n
    • BEFORE DDL<\/li>\n
    • AFTER DDL<\/li>\n
    • BEFORE DISASSOCIATE STATISTICS<\/li>\n
    • AFTER DISASSOCIATE STATISTICS<\/li>\n
    • BEFORE GRANT<\/li>\n
    • AFTER GRANT<\/li>\n
    • BEFORE RENAME<\/li>\n
    • AFTER RENAME<\/li>\n
    • BEFORE REVOKE<\/li>\n
    • AFTER REVOKE<\/li>\n
    • BEFORE TRUNCATE<\/li>\n
    • AFTER TRUNCATE<\/li>\n<\/ul>\n\n
      <\/div>\n
      <\/path><\/svg><\/i> \"Loading\"<\/p>\n
      <\/div>\n","protected":false},"excerpt":{"rendered":"
      In the database, it may sometimes be necessary to disable system triggers during operations such as java installation, downgrade, or upgrade. An error in a system trigger that we create can cause serious problems in the database. In these cases, system triggers may need to be disabled. To disable system triggers, the value of parameter …<\/p>\n
      <\/div>\n
      <\/path><\/svg><\/i> \"Loading\"<\/p>\n
      <\/div>\n","protected":false},"author":1,"featured_media":12088,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"footnotes":""},"categories":[4],"tags":[3913,3914,3911,3908,3910,3907,3912,3909,3915],"class_list":["post-12087","post","type-post","status-publish","format-standard","has-post-thumbnail","","category-oracle","tag-_system_trig_enabled","tag-_system_trig_enabled-true","tag-disable-system-trigger-in-oracle","tag-disable-trigger-oracle","tag-oracle-disable-system-trigger","tag-oracle-disable-trigger","tag-oracle-plsql-disable-trigger","tag-system-level-trigger-in-oracle","tag-system-triggers-in-oracle"],"aioseo_notices":[],"yoast_head":"\nHow To Disable System Triggers in Oracle - 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