{"id":69,"date":"2010-10-28T10:25:31","date_gmt":"2010-10-28T08:25:31","guid":{"rendered":"http:\/\/zoharelkayam.wordpress.com\/?p=69"},"modified":"2010-10-28T10:25:31","modified_gmt":"2010-10-28T08:25:31","slug":"%d7%a9%d7%9c%d7%99%d7%a4%d7%95%d7%aa-%d7%a9%d7%a2%d7%95%d7%a9%d7%95%d7%aa-downgrade","status":"publish","type":"post","link":"https:\/\/www.realdbamagic.com\/he\/%d7%a9%d7%9c%d7%99%d7%a4%d7%95%d7%aa-%d7%a9%d7%a2%d7%95%d7%a9%d7%95%d7%aa-downgrade\/","title":{"rendered":"\u05e9\u05dc\u05d9\u05e4\u05d5\u05ea \u05e9\u05e2\u05d5\u05e9\u05d5\u05ea Downgrade"},"content":{"rendered":"<p>\u05dc\u05e4\u05e2\u05de\u05d9\u05dd \u05d9\u05e9 \u05e6\u05d5\u05e8\u05da \u05dc\u05de\u05e6\u05d5\u05d0 \u05de\u05d4\u05df \u05d4\u05e9\u05dc\u05d9\u05e4\u05d5\u05ea \u05e9\u05e2\u05e9\u05d5 downgrade \u05d1\u05de\u05e2\u05e8\u05db\u05ea \u05d5\u05dc\u05d0 \u05e7\u05d9\u05d1\u05dc\u05d5 \u05de\u05e1\u05e4\u05d9\u05e7 parallel processes. \u05e6\u05e8\u05d9\u05da \u05dc\u05d4\u05d1\u05d7\u05d9\u05df \u05d1\u05d9\u05df \u05e9\u05e0\u05d9 \u05de\u05e7\u05e8\u05d9\u05dd: \u05de\u05e7\u05e8\u05d4 \u05e9\u05d4\u05e9\u05dc\u05d9\u05e4\u05d5\u05ea \u05e7\u05d9\u05d1\u05dc\u05d5 \u05d7\u05dc\u05e7 \u05de\u05d4\u05de\u05e9\u05d0\u05d1\u05d9\u05dd \u05d5\u05de\u05e7\u05e8\u05d4 \u05e9\u05d1\u05d4\u05dd \u05d4\u05df \u05dc\u05d0 \u05e7\u05d9\u05d1\u05dc\u05d5 \u05d1\u05db\u05dc\u05dc \u05de\u05e9\u05d0\u05d1\u05d9\u05dd \u05d5\u05e2\u05db\u05e9\u05d9\u05d5 \u05d4\u05df \u05e2\u05d5\u05d1\u05d3\u05d5\u05ea \u05d1-serial.<\/p>\n<p>\u05db\u05d3\u05d9 \u05dc\u05de\u05e6\u05d5\u05d0 \u05de\u05d4\u05df \u05d4\u05e9\u05dc\u05d9\u05e4\u05d5\u05ea \u05e9\u05e7\u05d9\u05d1\u05dc\u05d5 downgrade (\u05d0\u05d1\u05dc \u05e2\u05d3\u05d9\u05d9\u05df \u05e2\u05d5\u05d1\u05d3\u05d5\u05ea \u05d1-Parallel) \u05e0\u05d9\u05ea\u05df \u05dc\u05d4\u05e9\u05ea\u05de\u05e9 \u05d1\u05e9\u05dc\u05d9\u05e4\u05d4 \u05d4\u05d1\u05d0\u05d4. \u05d4\u05e9\u05dc\u05d9\u05e4\u05d4 \u05de\u05d7\u05d6\u05d9\u05e8\u05d4 \u05e8\u05e7 \u05d0\u05ea \u05d4-PX\u00a0coordinator (\u05db\u05dc\u05d5\u05de\u05e8 \u05d4-SID \u05e9\u05dc \u05d4\u05d4\u05d5\u05e8\u05d4) \u05d5\u05dc\u05d0 \u05d0\u05ea \u05db\u05dc \u05d4\u05e4\u05e8\u05d5\u05e1\u05e1\u05d9\u05dd \u05e2\u05e6\u05de\u05dd:<\/p>\n<div style=\"direction:ltr;\">\n<pre class=\"brush: sql; title: ; notranslate\" title=\"\">\nSELECT a.sid parent_sid,\n       a.logon_time,\n       a.program,\n       a.osuser,\n       a.username,\n       a.sql_id,\n       ps.req_degree,\n       ps.got_degree\n  FROM (SELECT s.sid,\n               s.osuser,\n               s.USERNAME,\n               s.status,\n               s.sql_id,\n               s.logon_time,\n               s.last_call_et,\n               UPPER(s.program) program\n          FROM v$session s\n         WHERE ((s.username IS NOT NULL) AND (NVL(s.osuser, &#039;x&#039;) &amp;lt;&amp;gt; &#039;SYSTEM&#039;) AND\n               (s.TYPE &amp;lt;&amp;gt; &#039;BACKGROUND&#039;))) a\n  JOIN (SELECT DISTINCT qcsid,\n                        CASE\n                            WHEN req_degree &amp;gt; degree THEN\n                             1\n                            ELSE\n                             0\n                        END is_downgrade,\n                        MAX(req_degree) req_degree,\n                        MAX(degree) got_degree\n          FROM v$px_session\n         GROUP BY qcsid,\n                  CASE\n                      WHEN req_degree &amp;gt; degree THEN\n                       1\n                      ELSE\n                       0\n                  END) ps ON a.sid = ps.qcsid\n WHERE ps.is_downgrade = 1\n<\/pre>\n<p style=\"direction:rtl;\">\u05db\u05d3\u05d9 \u05dc\u05d0\u05ea\u05e8 \u05d0\u05ea \u05d4\u05e9\u05dc\u05d9\u05e4\u05d5\u05ea \u05e9\u05dc\u05d0 \u05e7\u05d9\u05d1\u05dc\u05d5 \u05e4\u05e8\u05d5\u05e1\u05e1\u05d9\u05dd \u05d1\u05db\u05dc\u05dc (\u05d5\u05d1\u05e2\u05e6\u05dd \u05e2\u05e9\u05d5 downgrade to serial) \u05e0\u05d9\u05ea\u05df \u05dc\u05d4\u05e9\u05ea\u05de\u05e9 \u05d1\u05e9\u05dc\u05d9\u05e4\u05d4 \u05d4\u05d1\u05d0\u05d4:<\/p>\n<pre class=\"brush: sql; title: ; notranslate\" title=\"\">\nSELECT sess.sid parent_sid,\n\t\t logon_time,\n\t\t sess.program,\n\t\t sess.osuser,\n\t\t sess.username,\n\t\t sql_id,\n\t\t TRUNC (last_call_et \/ 60) dur_minutes\n  FROM v$sesstat sesstat, v$sysstat sysstat, v$session sess\n WHERE\t  sesstat.statistic# = sysstat.statistic#\n\t\t AND sesstat.sid = sess.sid\n\t\t AND name = &#039;Parallel operations downgraded to serial&#039;\n\t\t AND sesstat.VALUE &amp;gt; 0\n\t\t AND sess.status = &#039;ACTIVE&#039;\n<\/pre>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u05dc\u05e4\u05e2\u05de\u05d9\u05dd \u05d9\u05e9 \u05e6\u05d5\u05e8\u05da \u05dc\u05de\u05e6\u05d5\u05d0 \u05de\u05d4\u05df \u05d4\u05e9\u05dc\u05d9\u05e4\u05d5\u05ea \u05e9\u05e2\u05e9\u05d5 downgrade \u05d1\u05de\u05e2\u05e8\u05db\u05ea \u05d5\u05dc\u05d0 \u05e7\u05d9\u05d1\u05dc\u05d5 \u05de\u05e1\u05e4\u05d9\u05e7 parallel processes. \u05e6\u05e8\u05d9\u05da \u05dc\u05d4\u05d1\u05d7\u05d9\u05df \u05d1\u05d9\u05df \u05e9\u05e0\u05d9 \u05de\u05e7\u05e8\u05d9\u05dd: \u05de\u05e7\u05e8\u05d4 \u05e9\u05d4\u05e9\u05dc\u05d9\u05e4\u05d5\u05ea \u05e7\u05d9\u05d1\u05dc\u05d5 \u05d7\u05dc\u05e7 \u05de\u05d4\u05de\u05e9\u05d0\u05d1\u05d9\u05dd \u05d5\u05de\u05e7\u05e8\u05d4 \u05e9\u05d1\u05d4\u05dd \u05d4\u05df \u05dc\u05d0 \u05e7\u05d9\u05d1\u05dc\u05d5 \u05d1\u05db\u05dc\u05dc \u05de\u05e9\u05d0\u05d1\u05d9\u05dd \u05d5\u05e2\u05db\u05e9\u05d9\u05d5 \u05d4\u05df \u05e2\u05d5\u05d1\u05d3\u05d5\u05ea \u05d1-serial. \u05db\u05d3\u05d9 \u05dc\u05de\u05e6\u05d5\u05d0 \u05de\u05d4\u05df \u05d4\u05e9\u05dc\u05d9\u05e4\u05d5\u05ea \u05e9\u05e7\u05d9\u05d1\u05dc\u05d5 downgrade (\u05d0\u05d1\u05dc \u05e2\u05d3\u05d9\u05d9\u05df \u05e2\u05d5\u05d1\u05d3\u05d5\u05ea \u05d1-Parallel) \u05e0\u05d9\u05ea\u05df \u05dc\u05d4\u05e9\u05ea\u05de\u05e9 \u05d1\u05e9\u05dc\u05d9\u05e4\u05d4 \u05d4\u05d1\u05d0\u05d4. \u05d4\u05e9\u05dc\u05d9\u05e4\u05d4 \u05de\u05d7\u05d6\u05d9\u05e8\u05d4 \u05e8\u05e7 \u05d0\u05ea \u05d4-PX\u00a0coordinator (\u05db\u05dc\u05d5\u05de\u05e8 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_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":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[7,14],"tags":[],"class_list":["post-69","post","type-post","status-publish","format-standard","hentry","category-performance","category-14"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>\u05e9\u05dc\u05d9\u05e4\u05d5\u05ea \u05e9\u05e2\u05d5\u05e9\u05d5\u05ea Downgrade - Real Time DBA Magic<\/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.realdbamagic.com\/he\/%d7%a9%d7%9c%d7%99%d7%a4%d7%95%d7%aa-%d7%a9%d7%a2%d7%95%d7%a9%d7%95%d7%aa-downgrade\/\" \/>\n<meta property=\"og:locale\" content=\"he_IL\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u05e9\u05dc\u05d9\u05e4\u05d5\u05ea \u05e9\u05e2\u05d5\u05e9\u05d5\u05ea Downgrade - Real Time DBA Magic\" \/>\n<meta property=\"og:description\" content=\"\u05dc\u05e4\u05e2\u05de\u05d9\u05dd \u05d9\u05e9 \u05e6\u05d5\u05e8\u05da \u05dc\u05de\u05e6\u05d5\u05d0 \u05de\u05d4\u05df \u05d4\u05e9\u05dc\u05d9\u05e4\u05d5\u05ea \u05e9\u05e2\u05e9\u05d5 downgrade \u05d1\u05de\u05e2\u05e8\u05db\u05ea \u05d5\u05dc\u05d0 \u05e7\u05d9\u05d1\u05dc\u05d5 \u05de\u05e1\u05e4\u05d9\u05e7 parallel processes. \u05e6\u05e8\u05d9\u05da \u05dc\u05d4\u05d1\u05d7\u05d9\u05df \u05d1\u05d9\u05df \u05e9\u05e0\u05d9 \u05de\u05e7\u05e8\u05d9\u05dd: \u05de\u05e7\u05e8\u05d4 \u05e9\u05d4\u05e9\u05dc\u05d9\u05e4\u05d5\u05ea \u05e7\u05d9\u05d1\u05dc\u05d5 \u05d7\u05dc\u05e7 \u05de\u05d4\u05de\u05e9\u05d0\u05d1\u05d9\u05dd \u05d5\u05de\u05e7\u05e8\u05d4 \u05e9\u05d1\u05d4\u05dd \u05d4\u05df \u05dc\u05d0 \u05e7\u05d9\u05d1\u05dc\u05d5 \u05d1\u05db\u05dc\u05dc \u05de\u05e9\u05d0\u05d1\u05d9\u05dd \u05d5\u05e2\u05db\u05e9\u05d9\u05d5 \u05d4\u05df \u05e2\u05d5\u05d1\u05d3\u05d5\u05ea \u05d1-serial. \u05db\u05d3\u05d9 \u05dc\u05de\u05e6\u05d5\u05d0 \u05de\u05d4\u05df \u05d4\u05e9\u05dc\u05d9\u05e4\u05d5\u05ea \u05e9\u05e7\u05d9\u05d1\u05dc\u05d5 downgrade (\u05d0\u05d1\u05dc \u05e2\u05d3\u05d9\u05d9\u05df \u05e2\u05d5\u05d1\u05d3\u05d5\u05ea \u05d1-Parallel) \u05e0\u05d9\u05ea\u05df \u05dc\u05d4\u05e9\u05ea\u05de\u05e9 \u05d1\u05e9\u05dc\u05d9\u05e4\u05d4 \u05d4\u05d1\u05d0\u05d4. \u05d4\u05e9\u05dc\u05d9\u05e4\u05d4 \u05de\u05d7\u05d6\u05d9\u05e8\u05d4 \u05e8\u05e7 \u05d0\u05ea \u05d4-PX\u00a0coordinator (\u05db\u05dc\u05d5\u05de\u05e8 [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.realdbamagic.com\/he\/%d7%a9%d7%9c%d7%99%d7%a4%d7%95%d7%aa-%d7%a9%d7%a2%d7%95%d7%a9%d7%95%d7%aa-downgrade\/\" \/>\n<meta property=\"og:site_name\" content=\"Real Time DBA Magic\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/facebook.com\/zohare\" \/>\n<meta property=\"article:author\" content=\"https:\/\/facebook.com\/zohare\" \/>\n<meta property=\"article:published_time\" content=\"2010-10-28T08:25:31+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.realdbamagic.com\/wp-content\/uploads\/2014\/12\/Facebook-Share-profile-photo-270-x-270_2.png\" \/>\n\t<meta property=\"og:image:width\" content=\"270\" \/>\n\t<meta property=\"og:image:height\" content=\"270\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"\u05d6\u05d4\u05e8 \u05d0\u05dc\u05e7\u05d9\u05d9\u05dd\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@realmgic\" \/>\n<meta name=\"twitter:site\" content=\"@realmgic\" \/>\n<meta name=\"twitter:label1\" content=\"\u05e0\u05db\u05ea\u05d1 \u05e2\u05dc \u05d9\u05d3\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u05d6\u05d4\u05e8 \u05d0\u05dc\u05e7\u05d9\u05d9\u05dd\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u05d6\u05de\u05df \u05e7\u05e8\u05d9\u05d0\u05d4 \u05de\u05d5\u05e2\u05e8\u05da\" \/>\n\t<meta name=\"twitter:data2\" content=\"\u05d3\u05e7\u05d41\" \/>\n<script type=\"application\/ld+json\" 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