{"id":1107,"date":"2014-11-14T19:54:42","date_gmt":"2014-11-14T22:54:42","guid":{"rendered":"http:\/\/www.dbarj.com.br\/?p=1107"},"modified":"2014-11-14T20:32:02","modified_gmt":"2014-11-14T23:32:02","slug":"ocm-11g-preparation-configure-database-environment-support-optimal-data-access-performance","status":"publish","type":"post","link":"https:\/\/www.dbarj.com.br\/en\/2014\/11\/ocm-11g-preparation-configure-database-environment-support-optimal-data-access-performance\/","title":{"rendered":"OCM 11g Preparation &#8211; Configure the database environment to support optimal data access performance"},"content":{"rendered":"<p>This topic is not so specific as the others. It says &#8220;<strong>Support optimal data performance<\/strong>&#8220;. This lead us to think in about 1000 items that are relates to performance in a DB. Basically, this means: study a lot of performance. Read the whole Oracle doc for Performance Tuning and get\u00a0the OCE Performance Tuning.<\/p>\n<p>This is the best way to be sure you are good with this topic.<\/p>\n<p>I will list some items that I recommend studying:<\/p>\n<ul>\n<li>When to use AMM \/ ASSM<\/li>\n<li>When to use Shared Servers<\/li>\n<li>Tuning the\u00a0DB_BLOCK_SIZE, DB_FILE_MULTIBLOCK_READ_COUNT<\/li>\n<li>Optimise the Shared Pool<\/li>\n<li>Tuning Filesystem IO with Sync \/ Async \/ Direct IO<\/li>\n<li>Tuning cursors with OPEN_CURSORS, SESSION_CACHED_CURSORS<\/li>\n<li>Using Parallelism<\/li>\n<li>OFA<\/li>\n<li>Tuning all the SGA and PGA pools<\/li>\n<li>Undo best practices (undo_management parameters)<\/li>\n<li>Fast Start Mean time to recovery parameter<\/li>\n<li>Statistics Level<\/li>\n<li>Keep frequent queries in the Shared Pool<\/li>\n<\/ul>\n<p><strong>Path to Documentation<\/strong>:<\/p>\n<p><span style=\"color: #800000;\">Performance Tuning Guide<\/span><\/p>\n<p><strong>Thanks to:<\/strong><\/p>\n<ul>\n<li><a title=\"http:\/\/jko-licorne.com\/\" href=\"http:\/\/jko-licorne.com\/oracle\/?page_id=695\" target=\"_blank\">http:\/\/jko-licorne.com\/<\/a><\/li>\n<li><a title=\"http:\/\/www.dbajunior.com\/\" href=\"http:\/\/www.dbajunior.com\/configure-the-database-environment-to-support-optimal-data-access-performance\/\" target=\"_blank\">http:\/\/www.dbajunior.com\/<\/a><\/li>\n<li><a title=\"dbmentors.blogspot.com.br\" href=\"http:\/\/dbmentors.blogspot.com.br\/2011\/10\/configure-database-environment-to.html\" target=\"_blank\">http:\/\/dbmentors.blogspot.com.br\/<\/a><\/li>\n<\/ul>\n<br>\r\nClick here to go back to the <a title=\"OCM 11g Preparation\" href=\"\/?page_id=923\">Main OCM 11g Preparation<\/a> page.\r\n<br><br>\r\nHave you enjoyed? Please leave a comment or give a \ud83d\udc4d!\n<div class='watch-action'><div class='watch-position align-left'><div class='action-like'><a class='lbg-style2 like-1107 jlk' href='javascript:void(0)' data-task='like' data-post_id='1107' data-nonce='de4404f630' rel='nofollow'><img class='wti-pixel' src='https:\/\/www.dbarj.com.br\/wp-content\/plugins\/wti-like-post\/images\/pixel.gif' title='Like' \/><span class='lc-1107 lc'>+5<\/span><\/a><\/div><\/div> <div class='status-1107 status align-left'><\/div><\/div><div class='wti-clear'><\/div>","protected":false},"excerpt":{"rendered":"<p>This topic is not so specific as the others. It says &#8220;Support optimal data performance&#8220;. This lead us to think in about 1000 items that are relates to performance in a DB. Basically, this means: study a lot of performance. Read the whole Oracle doc for Performance Tuning and get\u00a0the OCE Performance Tuning. This is &hellip; <\/p>\n<p><a class=\"more-link btn\" href=\"https:\/\/www.dbarj.com.br\/en\/2014\/11\/ocm-11g-preparation-configure-database-environment-support-optimal-data-access-performance\/\">Continue reading<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[27],"tags":[],"class_list":["post-1107","post","type-post","status-publish","format-standard","hentry","category-ocm11g-en","item-wrap"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>OCM 11g Preparation - Configure the database environment to support optimal data access performance - DBA - Rodrigo Jorge - Oracle Tips and Guides<\/title>\n<meta name=\"description\" content=\"Configure the database environment to support optimal data access performance for Oracle OCM 11g Certification\" \/>\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.dbarj.com.br\/en\/2014\/11\/ocm-11g-preparation-configure-database-environment-support-optimal-data-access-performance\/\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"DBA RJ\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. 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\":\"Article\",\"@id\":\"https:\\\/\\\/www.dbarj.com.br\\\/en\\\/2014\\\/11\\\/ocm-11g-preparation-configure-database-environment-support-optimal-data-access-performance\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.dbarj.com.br\\\/en\\\/2014\\\/11\\\/ocm-11g-preparation-configure-database-environment-support-optimal-data-access-performance\\\/\"},\"author\":{\"name\":\"DBA RJ\",\"@id\":\"https:\\\/\\\/www.dbarj.com.br\\\/en\\\/#\\\/schema\\\/person\\\/28a44ca3a6633fe4156ad1ea209d40a9\"},\"headline\":\"OCM 11g Preparation &#8211; Configure the database environment to support optimal data access performance\",\"datePublished\":\"2014-11-14T22:54:42+00:00\",\"dateModified\":\"2014-11-14T23:32:02+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.dbarj.com.br\\\/en\\\/2014\\\/11\\\/ocm-11g-preparation-configure-database-environment-support-optimal-data-access-performance\\\/\"},\"wordCount\":186,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/www.dbarj.com.br\\\/en\\\/#\\\/schema\\\/person\\\/28a44ca3a6633fe4156ad1ea209d40a9\"},\"articleSection\":[\"OCM 11g Preparation\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.dbarj.com.br\\\/en\\\/2014\\\/11\\\/ocm-11g-preparation-configure-database-environment-support-optimal-data-access-performance\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.dbarj.com.br\\\/en\\\/2014\\\/11\\\/ocm-11g-preparation-configure-database-environment-support-optimal-data-access-performance\\\/\",\"url\":\"https:\\\/\\\/www.dbarj.com.br\\\/en\\\/2014\\\/11\\\/ocm-11g-preparation-configure-database-environment-support-optimal-data-access-performance\\\/\",\"name\":\"OCM 11g Preparation - 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