{"id":922,"date":"2008-11-04T20:06:29","date_gmt":"2008-11-05T00:06:29","guid":{"rendered":"http:\/\/onlineappsdba.com\/index.php\/2008\/11\/04\/jdbc-java-database-connectivity-in-oracle-weblogic-overview\/"},"modified":"2008-11-04T20:10:56","modified_gmt":"2008-11-05T00:10:56","slug":"jdbc-java-database-connectivity-in-oracle-weblogic-overview","status":"publish","type":"post","link":"https:\/\/onlineappsdba.com\/index.php\/2008\/11\/04\/jdbc-java-database-connectivity-in-oracle-weblogic-overview\/","title":{"rendered":"JDBC (Java DataBase Connectivity ) in Oracle WebLogic – Overview"},"content":{"rendered":"

This post covers overview of connecting WebLogic Server to Database using JDBC.<\/p>\n

How to connect to Database from Oracle WebLogic Server <\/strong>:
\nYou first create JDBC Datasource<\/strong> (or multi data sources<\/strong>) and then deploy this JDBC datasource (or multi datasource) to WebLogic Server (or cluster) in Domain.<\/p>\n

Datasource<\/strong>: contains pool of database connections that are created when datasource instance is created i.e.
\na) When it is deployed or targeted
\nor
\nb) Server start-up<\/p>\n

Multi Datasource<\/strong> : Abstraction around data source<\/strong> to provide load balancing<\/strong> or failover <\/strong>for datasource which are part of Multi Datasource.<\/p>\n

<\/a><\/p>\n

.
\nWho can create JDBC Resource<\/strong> – Administrator or Programmer<\/p>\n

How a JDBC resource is created<\/strong> – Using
\ni) Administration Console\u00a0(by Administrator)
\nii) WLST (W<\/strong>ebL<\/strong>ogic S<\/strong>cripting T<\/strong>ool)\u00a0 (by Administrator)
\niii) by Programmatically using JMX API (by Developer)<\/p>\n

System<\/strong> v\/s Application<\/strong> JDBC Module – JDBC Modules created by Administrator<\/strong> using Console or WLST are called as System JDBC module<\/strong> where as JDBC module created by developer <\/strong>using WebLogic Workshop, other IDE (Integrated Development Environment) or XML editor are called as Application JDBC Module<\/strong>.<\/p>\n

How JDBC Datasource is stored on server<\/strong> – as XML File <\/strong>under $DOMAIN\/config\/jdbc directory. i.e. $WEBLOGIC_HOME\/ user_projects\/ domains\/ [domain_name]\/ config\/ jdbc\/<\/p>\n

config.xml <\/strong>file in “$WEBLOGIC_HOME\/user_projects\/domains\/[domain_name]\/config” points to JDBC datasource configuration file<\/strong> via parameter jdbc-system-resource<\/strong><\/p>\n

sample\u00a0entry in config.xml<\/p>\n

\u00a0 <jdbc-system-resource>
\n\u00a0\u00a0\u00a0 <name>JDBC1<\/name>
\n\u00a0\u00a0\u00a0 <target>AdminServer<\/target>
\n\u00a0\u00a0\u00a0 <descriptor-file-name>jdbc\/JDBC1-1894-jdbc.xml<\/descriptor-file-name>
\n\u00a0 <\/jdbc-system-resource><\/font><\/p>\n

which means JDBC configuration file is at “$WEBLOGIC_HOME\/ user_projects\/ domains\/ [domain_name]\/ config\/ jdbc\/ JDBC1-1894-jdbc.xml<\/strong>”<\/p>\n

.<\/p>\n

Step by Step JDBC resource creation (for database connectivity)\u00a0in WebLogic Server using Administration Console coming next …<\/font><\/p>\n","protected":false},"excerpt":{"rendered":"

This post covers overview of connecting WebLogic Server to Database using JDBC. How to connect to Database from Oracle WebLogic […]<\/p>\n","protected":false},"author":115,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[217],"tags":[],"class_list":["post-922","post","type-post","status-publish","format-standard","hentry","category-weblogic"],"yoast_head":"\nJDBC (Java DataBase Connectivity ) in Oracle WebLogic - Overview -<\/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:\/\/onlineappsdba.com\/index.php\/2008\/11\/04\/jdbc-java-database-connectivity-in-oracle-weblogic-overview\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"JDBC (Java DataBase Connectivity ) in Oracle WebLogic - Overview -\" \/>\n<meta property=\"og:description\" content=\"This post covers overview of connecting WebLogic Server to Database using JDBC. 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