{"id":1224,"date":"2018-04-09T14:09:11","date_gmt":"2018-04-09T13:09:11","guid":{"rendered":"https:\/\/dbafox.com\/?p=1224"},"modified":"2018-04-09T14:14:53","modified_gmt":"2018-04-09T13:14:53","slug":"orale-query-locking","status":"publish","type":"post","link":"https:\/\/dbafox.com\/?p=1224","title":{"rendered":"Oracle &#8211; Query locking"},"content":{"rendered":"<h2>Display locks in Oracle database<\/h2>\n<pre class=\"brush: sql; title: ; notranslate\" title=\"\">\r\nselect * from gv$lock where block = 1\r\n\r\nselect * from gv$session where sid in (1998)\r\n\r\nselect sid, serial#, lockwait,\r\nblocking_instance, blocking_session,\r\nfinal_blocking_instance, final_blocking_session\r\nfrom gv$session where program not like 'oracle%'\r\nand blocking_session is not null\r\n\r\n--ALTER SYSTEM KILL SESSION 'sid,serial#,inst_id';\r\n\r\nselect * from gv$session where status = 'KILLED'\r\n\r\n-- non-RAC environment\r\nSELECT Decode(request, 0, 'Holder: ',\r\n  'Waiter: ')\r\n  ||vl.sid sess,\r\n  status,id1,id2,lmode,request,vl.TYPE\r\nFROM v$lock vl,v$session vs\r\nWHERE ( id1, id2, vl.TYPE ) IN \r\n(SELECT id1, id2, TYPE FROM v$lock\r\n  WHERE request &gt; 0)\r\n  AND vl.sid = vs.sid\r\nORDER BY id1, request\r\n<\/pre>\n<h2>[Look for UBABLK in gv$transaction &#8211; if value remains static for a while, the transaction is potentially blocked<\/h2>\n<pre class=\"brush: sql; title: ; notranslate\" title=\"\">\r\nselect * from gv$transaction\r\n<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>Display locks in Oracle database select * from gv$lock where block = 1 select * from gv$session where sid in (1998) select sid, serial#, lockwait, blocking_instance, blocking_session, final_blocking_instance, final_blocking_session from gv$session where program not like &#8216;oracle%&#8217; and blocking_session is not &hellip; <a href=\"https:\/\/dbafox.com\/?p=1224\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"pgc_sgb_lightbox_settings":"","_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[28,1],"tags":[],"class_list":["post-1224","post","type-post","status-publish","format-standard","hentry","category-oracle-technical","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Oracle - Query locking - dbafox<\/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:\/\/dbafox.com\/?p=1224\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Oracle - Query locking - dbafox\" \/>\n<meta property=\"og:description\" content=\"Display locks in Oracle database select * from gv$lock where block = 1 select * from gv$session where sid in (1998) select sid, serial#, lockwait, blocking_instance, blocking_session, final_blocking_instance, final_blocking_session from gv$session where program not like &#039;oracle%&#039; and blocking_session is not &hellip; Continue reading &rarr;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/dbafox.com\/?p=1224\" \/>\n<meta property=\"og:site_name\" content=\"dbafox\" \/>\n<meta property=\"article:published_time\" content=\"2018-04-09T13:09:11+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2018-04-09T13:14:53+00:00\" \/>\n<meta name=\"author\" content=\"Ray Fox\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Ray Fox\" \/>\n\t<meta name=\"twitter:label2\" content=\"Estimated reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/dbafox.com\/?p=1224\",\"url\":\"https:\/\/dbafox.com\/?p=1224\",\"name\":\"Oracle - Query locking - dbafox\",\"isPartOf\":{\"@id\":\"https:\/\/dbafox.com\/#website\"},\"datePublished\":\"2018-04-09T13:09:11+00:00\",\"dateModified\":\"2018-04-09T13:14:53+00:00\",\"author\":{\"@id\":\"https:\/\/dbafox.com\/#\/schema\/person\/287adc474c1aebd398752ac4dcfe27eb\"},\"breadcrumb\":{\"@id\":\"https:\/\/dbafox.com\/?p=1224#breadcrumb\"},\"inLanguage\":\"en-GB\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/dbafox.com\/?p=1224\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/dbafox.com\/?p=1224#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/dbafox.com\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Oracle &#8211; Query locking\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/dbafox.com\/#website\",\"url\":\"https:\/\/dbafox.com\/\",\"name\":\"dbafox\",\"description\":\"DBA Technical Information\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/dbafox.com\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-GB\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/dbafox.com\/#\/schema\/person\/287adc474c1aebd398752ac4dcfe27eb\",\"name\":\"Ray Fox\",\"sameAs\":[\"http:\/\/www.dbafox.com\"]}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Oracle - Query locking - dbafox","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/dbafox.com\/?p=1224","og_locale":"en_GB","og_type":"article","og_title":"Oracle - Query locking - dbafox","og_description":"Display locks in Oracle database select * from gv$lock where block = 1 select * from gv$session where sid in (1998) select sid, serial#, lockwait, blocking_instance, blocking_session, final_blocking_instance, final_blocking_session from gv$session where program not like 'oracle%' and blocking_session is not &hellip; Continue reading &rarr;","og_url":"https:\/\/dbafox.com\/?p=1224","og_site_name":"dbafox","article_published_time":"2018-04-09T13:09:11+00:00","article_modified_time":"2018-04-09T13:14:53+00:00","author":"Ray Fox","twitter_misc":{"Written by":"Ray Fox","Estimated reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/dbafox.com\/?p=1224","url":"https:\/\/dbafox.com\/?p=1224","name":"Oracle - Query locking - dbafox","isPartOf":{"@id":"https:\/\/dbafox.com\/#website"},"datePublished":"2018-04-09T13:09:11+00:00","dateModified":"2018-04-09T13:14:53+00:00","author":{"@id":"https:\/\/dbafox.com\/#\/schema\/person\/287adc474c1aebd398752ac4dcfe27eb"},"breadcrumb":{"@id":"https:\/\/dbafox.com\/?p=1224#breadcrumb"},"inLanguage":"en-GB","potentialAction":[{"@type":"ReadAction","target":["https:\/\/dbafox.com\/?p=1224"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/dbafox.com\/?p=1224#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/dbafox.com\/"},{"@type":"ListItem","position":2,"name":"Oracle &#8211; Query locking"}]},{"@type":"WebSite","@id":"https:\/\/dbafox.com\/#website","url":"https:\/\/dbafox.com\/","name":"dbafox","description":"DBA Technical Information","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/dbafox.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-GB"},{"@type":"Person","@id":"https:\/\/dbafox.com\/#\/schema\/person\/287adc474c1aebd398752ac4dcfe27eb","name":"Ray Fox","sameAs":["http:\/\/www.dbafox.com"]}]}},"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p3ecMb-jK","_links":{"self":[{"href":"https:\/\/dbafox.com\/index.php?rest_route=\/wp\/v2\/posts\/1224","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dbafox.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dbafox.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dbafox.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/dbafox.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1224"}],"version-history":[{"count":7,"href":"https:\/\/dbafox.com\/index.php?rest_route=\/wp\/v2\/posts\/1224\/revisions"}],"predecessor-version":[{"id":1226,"href":"https:\/\/dbafox.com\/index.php?rest_route=\/wp\/v2\/posts\/1224\/revisions\/1226"}],"wp:attachment":[{"href":"https:\/\/dbafox.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1224"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dbafox.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1224"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dbafox.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1224"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}