{"id":1805,"date":"2010-09-13T15:07:08","date_gmt":"2010-09-13T20:07:08","guid":{"rendered":"http:\/\/jianmingli.com\/wp\/?p=1805"},"modified":"2010-09-13T15:07:08","modified_gmt":"2010-09-13T20:07:08","slug":"oracle-designer-error-database-connection-when-deleting-entities","status":"publish","type":"post","link":"https:\/\/jianmingli.com\/wp\/?p=1805","title":{"rendered":"Oracle Designer Error: Database Connection when Deleting Entities"},"content":{"rendered":"<span id=\"Scenario\"><h2>Scenario<\/h2><\/span>\n<p>Kept getting database connect lost error when trying to delete repository objects such as ER entities, relationships, tables from ER diagram or Designer Editor.<\/p>\n<span id=\"Environment\"><h2>Environment<\/h2><\/span>\n<span id=\"Oracle_10g_Designer\"><h3>Oracle 10g Designer<\/h3><\/span>\n<p>Version: 10.1.2.0.2<br \/>\nConfiguration: 4.0.12.97.6<br \/>\nBuild: 10.1.2.6.18<\/p>\n<span id=\"Oracle_10g_Database\"><h3>Oracle 10g Database<\/h3><\/span>\n<pre lang=\"sql\">\r\nSQL> select * from v$version;\r\n\r\nBANNER\r\n----------------------------------------------------------------\r\nOracle Database 10g Enterprise Edition Release 10.2.0.4.0 - Prod\r\nPL\/SQL Release 10.2.0.4.0 - Production\r\nCORE    10.2.0.4.0      Production\r\nTNS for 32-bit Windows: Version 10.2.0.4.0 - Production\r\nNLSRTL Version 10.2.0.4.0 - Production<\/pre>\n<span id=\"Solutions\"><h2>Solutions<\/h2><\/span>\n<pre lang=\"sql\">\r\nSQL> connect system\/orcl\r\nConnected.\r\nSQL> alter system set \"_optimizer_cost_based_transformation\"=off scope=both;\r\n\r\nSystem altered.\r\n<\/pre>\n<p>See <a href=\"http:\/\/forums.oracle.com\/forums\/thread.jspa?threadID=625348&#038;start=15&#038;tstart=209\">http:\/\/forums.oracle.com\/forums\/thread.jspa?threadID=625348&#038;start=15&#038;tstart=209<\/a><br \/>\nfor details.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Scenario Kept getting database connect lost error when trying to delete repository objects such as ER entities, relationships, tables from ER diagram or Designer Editor. Environment Oracle 10g Designer Version: 10.1.2.0.2 Configuration: 4.0.12.97.6 Build: 10.1.2.6.18 Oracle 10g Database SQL> select &hellip; <a href=\"https:\/\/jianmingli.com\/wp\/?p=1805\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"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":[73],"tags":[],"class_list":["post-1805","post","type-post","status-publish","format-standard","hentry","category-errors"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p8cRUO-t7","_links":{"self":[{"href":"https:\/\/jianmingli.com\/wp\/index.php?rest_route=\/wp\/v2\/posts\/1805","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jianmingli.com\/wp\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jianmingli.com\/wp\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jianmingli.com\/wp\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/jianmingli.com\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1805"}],"version-history":[{"count":2,"href":"https:\/\/jianmingli.com\/wp\/index.php?rest_route=\/wp\/v2\/posts\/1805\/revisions"}],"predecessor-version":[{"id":1807,"href":"https:\/\/jianmingli.com\/wp\/index.php?rest_route=\/wp\/v2\/posts\/1805\/revisions\/1807"}],"wp:attachment":[{"href":"https:\/\/jianmingli.com\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1805"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jianmingli.com\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1805"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jianmingli.com\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1805"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}