{"id":144,"date":"2016-03-11T09:00:48","date_gmt":"2016-03-11T15:00:48","guid":{"rendered":"http:\/\/www.aamirharoon.com\/?p=144"},"modified":"2016-03-15T22:07:08","modified_gmt":"2016-03-16T04:07:08","slug":"variables-shell-sqlplus-plsql","status":"publish","type":"post","link":"http:\/\/www.aamirharoon.com\/?p=144","title":{"rendered":"Variables: Shell, SQL*PLUS and PL\/SQL"},"content":{"rendered":"<p>I am going to start blogging about shell scripting tips and\u00a0technique focusing on database and how they can be used to make DBA life easier.<\/p>\n<p>Here is an\u00a0example of how to save result from SQL query into Shell variable. \u00a0Commands between backtick &#8220;`&#8221; or &#8220;$( )&#8221; are executed in a subshell and results are returned to parent shell.<\/p>\n<h2>Shell Variables:<\/h2>\n<pre class=\"brush: bash; title: ; notranslate\" title=\"\">\r\nsh&gt; RESTORE_NAME=`sqlplus -s \/ as sysdba &lt;&lt; EOF \r\nset head off feedback off \r\nselect sysdate from dual; \r\nexit; \r\nEOF` \r\n\r\nsh&gt; echo ${RESTORE_NAME}\r\n03\/10\/2016 22:45:06\r\n<\/pre>\n<p><span style=\"font-family: Georgia, 'Times New Roman', 'Bitstream Charter', Times, serif; line-height: 1.5;\">OR<br \/>\n<\/span><\/p>\n<pre class=\"brush: bash; title: ; notranslate\" title=\"\">\r\nsh&gt; RESTORE_NAME=$(sqlplus -s \/ as sysdba &lt;&lt; EOF \r\nset head off feedback off \r\nselect sysdate from dual; \r\nexit; \r\nEOF) \r\n\r\nsh&gt; echo ${RESTORE_NAME}\r\n03\/10\/2016 22:45:50\r\n<\/pre>\n<h2>SQL Variables<\/h2>\n<p>There are few different ways to declare, assign and retrieve variables in SQL*Plus.<\/p>\n<p>DEFINE Command:<\/p>\n<pre class=\"brush: sql; title: ; notranslate\" title=\"\">\r\nSQL&gt; define sid = &quot;some_sid&quot; (CHAR)\r\nSQL&gt; select '&amp;sid' from dual;\r\nold 1: select '&amp;sid' from dual\r\nnew 1: select 'some_sid' from dual\r\n\r\n'SOME_SI\r\n--------\r\nsome_sid\r\n\r\n<\/pre>\n<p>Using COLUMN Command<\/p>\n<pre class=\"brush: sql; title: ; notranslate\" title=\"\">\r\nSQL&gt; col instance_name new_value sid;\r\nSQL&gt; select instance_name from v$instance;\r\nSQL&gt; select '&amp;sid' from dual;\r\nold 1: select '&amp;sid' from dual\r\nnew 1: select 'cdb1' from dual\r\n\r\n'CDB\r\n----\r\ncdb1\r\n\r\n<\/pre>\n<p>VARIABLE Command:<\/p>\n<pre class=\"brush: sql; title: ; notranslate\" title=\"\">\r\nSQL&gt; var sqlplus_var varchar2(50);\r\nSQL&gt; exec select 'sqlplus variable' into :sqlplus_var from dual;\r\n\r\nPL\/SQL procedure successfully completed.\r\n\r\nSQL&gt; print sqlplus_var\r\n\r\nSQLPLUS_VAR\r\n----------------------------------------------------------------------------------------------------\r\nsqlplus variable\r\n\r\n--another way to assign value\r\n\r\nSQL&gt; exec :sqlplus_var := 'sqlplus variable exec';\r\n\r\nPL\/SQL procedure successfully completed.\r\n\r\nSQL&gt; print sqlplus_var;\r\n\r\nSQLPLUS_VAR\r\n----------------------------------------------------------------------------------------------------\r\nsqlplus variable exec\r\n\r\n<\/pre>\n<h2>PL\/SQL Variable<\/h2>\n<p>This how you assign and display variables in PL\/SQL<\/p>\n<pre class=\"brush: sql; title: ; notranslate\" title=\"\">\r\ndeclare\r\n plsql_var varchar2(50);\r\n begin\r\n   select 'plsql variable' into plsql_var from dual;\r\n   dbms_output.put_line ('plsql_var =' || plsql_var);\r\n end;\r\n\/\r\n\r\nplsql_var =plsql variable\r\n\r\nPL\/SQL procedure successfully completed.\r\n\r\n<\/pre>\n<p>Next I&#8217;ll write\u00a0about how you can pass shell variables into sqlplus to create dynamic sql.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>I am going to start blogging about shell scripting tips and\u00a0technique focusing on database and how they can be used to make DBA life easier.<\/p>\n","protected":false},"author":1,"featured_media":165,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3,4,40],"tags":[44,41,43,42],"class_list":["post-144","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-11gr2","category-12cr1","category-shell-script","tag-plsql","tag-shell","tag-sqlplus","tag-variables"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Variables: Shell, SQL*PLUS and PL\/SQL - The Database Handyman<\/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.aamirharoon.com\/?p=144\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Variables: Shell, SQL*PLUS and PL\/SQL - The Database Handyman\" \/>\n<meta property=\"og:description\" content=\"I am going to start blogging about shell scripting tips and\u00a0technique focusing on database and how they can be used to make DBA life easier.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.aamirharoon.com\/?p=144\" \/>\n<meta property=\"og:site_name\" content=\"The Database Handyman\" \/>\n<meta property=\"article:published_time\" content=\"2016-03-11T15:00:48+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2016-03-16T04:07:08+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.aamirharoon.com\/wp-content\/uploads\/2016\/03\/basic-variables-ppt-1-728.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"728\" \/>\n\t<meta property=\"og:image:height\" content=\"546\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Aamir\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@aamir814\" \/>\n<meta name=\"twitter:site\" content=\"@aamir814\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Aamir\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.aamirharoon.com\/?p=144#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.aamirharoon.com\/?p=144\"},\"author\":{\"name\":\"Aamir\",\"@id\":\"http:\/\/www.aamirharoon.com\/#\/schema\/person\/dbcd256c4a97c6e27b7cc408200a9b63\"},\"headline\":\"Variables: Shell, SQL*PLUS and PL\/SQL\",\"datePublished\":\"2016-03-11T15:00:48+00:00\",\"dateModified\":\"2016-03-16T04:07:08+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.aamirharoon.com\/?p=144\"},\"wordCount\":360,\"commentCount\":0,\"publisher\":{\"@id\":\"http:\/\/www.aamirharoon.com\/#\/schema\/person\/dbcd256c4a97c6e27b7cc408200a9b63\"},\"image\":{\"@id\":\"https:\/\/www.aamirharoon.com\/?p=144#primaryimage\"},\"thumbnailUrl\":\"http:\/\/www.aamirharoon.com\/wp-content\/uploads\/2016\/03\/basic-variables-ppt-1-728.jpg\",\"keywords\":[\"plsql\",\"Shell\",\"sqlplus\",\"variables\"],\"articleSection\":[\"Oracle Database 11gR2\",\"Oracle Database 12cR1\",\"Shell Script\"],\"inLanguage\":\"en\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.aamirharoon.com\/?p=144#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.aamirharoon.com\/?p=144\",\"url\":\"https:\/\/www.aamirharoon.com\/?p=144\",\"name\":\"Variables: Shell, SQL*PLUS and PL\/SQL - The Database Handyman\",\"isPartOf\":{\"@id\":\"http:\/\/www.aamirharoon.com\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.aamirharoon.com\/?p=144#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.aamirharoon.com\/?p=144#primaryimage\"},\"thumbnailUrl\":\"http:\/\/www.aamirharoon.com\/wp-content\/uploads\/2016\/03\/basic-variables-ppt-1-728.jpg\",\"datePublished\":\"2016-03-11T15:00:48+00:00\",\"dateModified\":\"2016-03-16T04:07:08+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/www.aamirharoon.com\/?p=144#breadcrumb\"},\"inLanguage\":\"en\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.aamirharoon.com\/?p=144\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en\",\"@id\":\"https:\/\/www.aamirharoon.com\/?p=144#primaryimage\",\"url\":\"http:\/\/www.aamirharoon.com\/wp-content\/uploads\/2016\/03\/basic-variables-ppt-1-728.jpg\",\"contentUrl\":\"http:\/\/www.aamirharoon.com\/wp-content\/uploads\/2016\/03\/basic-variables-ppt-1-728.jpg\",\"width\":728,\"height\":546},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.aamirharoon.com\/?p=144#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"http:\/\/www.aamirharoon.com\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Variables: Shell, SQL*PLUS and PL\/SQL\"}]},{\"@type\":\"WebSite\",\"@id\":\"http:\/\/www.aamirharoon.com\/#website\",\"url\":\"http:\/\/www.aamirharoon.com\/\",\"name\":\"The Database Handyman\",\"description\":\"My notes about Oracle Database, APEX, OEM Cloud Control and whatever I learn\",\"publisher\":{\"@id\":\"http:\/\/www.aamirharoon.com\/#\/schema\/person\/dbcd256c4a97c6e27b7cc408200a9b63\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"http:\/\/www.aamirharoon.com\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en\"},{\"@type\":[\"Person\",\"Organization\"],\"@id\":\"http:\/\/www.aamirharoon.com\/#\/schema\/person\/dbcd256c4a97c6e27b7cc408200a9b63\",\"name\":\"Aamir\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en\",\"@id\":\"http:\/\/www.aamirharoon.com\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/63cc5bb07711a1b9719cc47e13a8205072859c1aef30fac28f412baa84b9cf9b?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/63cc5bb07711a1b9719cc47e13a8205072859c1aef30fac28f412baa84b9cf9b?s=96&d=mm&r=g\",\"caption\":\"Aamir\"},\"logo\":{\"@id\":\"http:\/\/www.aamirharoon.com\/#\/schema\/person\/image\/\"},\"sameAs\":[\"http:\/\/www.aamirharoon.com\/about\/\",\"https:\/\/x.com\/aamir814\"],\"url\":\"http:\/\/www.aamirharoon.com\/?author=1\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Variables: Shell, SQL*PLUS and PL\/SQL - The Database Handyman","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:\/\/www.aamirharoon.com\/?p=144","og_locale":"en_US","og_type":"article","og_title":"Variables: Shell, SQL*PLUS and PL\/SQL - The Database Handyman","og_description":"I am going to start blogging about shell scripting tips and\u00a0technique focusing on database and how they can be used to make DBA life easier.","og_url":"https:\/\/www.aamirharoon.com\/?p=144","og_site_name":"The Database Handyman","article_published_time":"2016-03-11T15:00:48+00:00","article_modified_time":"2016-03-16T04:07:08+00:00","og_image":[{"width":728,"height":546,"url":"https:\/\/www.aamirharoon.com\/wp-content\/uploads\/2016\/03\/basic-variables-ppt-1-728.jpg","type":"image\/jpeg"}],"author":"Aamir","twitter_card":"summary_large_image","twitter_creator":"@aamir814","twitter_site":"@aamir814","twitter_misc":{"Written by":"Aamir","Est. reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.aamirharoon.com\/?p=144#article","isPartOf":{"@id":"https:\/\/www.aamirharoon.com\/?p=144"},"author":{"name":"Aamir","@id":"http:\/\/www.aamirharoon.com\/#\/schema\/person\/dbcd256c4a97c6e27b7cc408200a9b63"},"headline":"Variables: Shell, SQL*PLUS and PL\/SQL","datePublished":"2016-03-11T15:00:48+00:00","dateModified":"2016-03-16T04:07:08+00:00","mainEntityOfPage":{"@id":"https:\/\/www.aamirharoon.com\/?p=144"},"wordCount":360,"commentCount":0,"publisher":{"@id":"http:\/\/www.aamirharoon.com\/#\/schema\/person\/dbcd256c4a97c6e27b7cc408200a9b63"},"image":{"@id":"https:\/\/www.aamirharoon.com\/?p=144#primaryimage"},"thumbnailUrl":"http:\/\/www.aamirharoon.com\/wp-content\/uploads\/2016\/03\/basic-variables-ppt-1-728.jpg","keywords":["plsql","Shell","sqlplus","variables"],"articleSection":["Oracle Database 11gR2","Oracle Database 12cR1","Shell Script"],"inLanguage":"en","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.aamirharoon.com\/?p=144#respond"]}]},{"@type":"WebPage","@id":"https:\/\/www.aamirharoon.com\/?p=144","url":"https:\/\/www.aamirharoon.com\/?p=144","name":"Variables: Shell, SQL*PLUS and PL\/SQL - The Database Handyman","isPartOf":{"@id":"http:\/\/www.aamirharoon.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.aamirharoon.com\/?p=144#primaryimage"},"image":{"@id":"https:\/\/www.aamirharoon.com\/?p=144#primaryimage"},"thumbnailUrl":"http:\/\/www.aamirharoon.com\/wp-content\/uploads\/2016\/03\/basic-variables-ppt-1-728.jpg","datePublished":"2016-03-11T15:00:48+00:00","dateModified":"2016-03-16T04:07:08+00:00","breadcrumb":{"@id":"https:\/\/www.aamirharoon.com\/?p=144#breadcrumb"},"inLanguage":"en","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.aamirharoon.com\/?p=144"]}]},{"@type":"ImageObject","inLanguage":"en","@id":"https:\/\/www.aamirharoon.com\/?p=144#primaryimage","url":"http:\/\/www.aamirharoon.com\/wp-content\/uploads\/2016\/03\/basic-variables-ppt-1-728.jpg","contentUrl":"http:\/\/www.aamirharoon.com\/wp-content\/uploads\/2016\/03\/basic-variables-ppt-1-728.jpg","width":728,"height":546},{"@type":"BreadcrumbList","@id":"https:\/\/www.aamirharoon.com\/?p=144#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"http:\/\/www.aamirharoon.com\/"},{"@type":"ListItem","position":2,"name":"Variables: Shell, SQL*PLUS and PL\/SQL"}]},{"@type":"WebSite","@id":"http:\/\/www.aamirharoon.com\/#website","url":"http:\/\/www.aamirharoon.com\/","name":"The Database Handyman","description":"My notes about Oracle Database, APEX, OEM Cloud Control and whatever I learn","publisher":{"@id":"http:\/\/www.aamirharoon.com\/#\/schema\/person\/dbcd256c4a97c6e27b7cc408200a9b63"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"http:\/\/www.aamirharoon.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en"},{"@type":["Person","Organization"],"@id":"http:\/\/www.aamirharoon.com\/#\/schema\/person\/dbcd256c4a97c6e27b7cc408200a9b63","name":"Aamir","image":{"@type":"ImageObject","inLanguage":"en","@id":"http:\/\/www.aamirharoon.com\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/63cc5bb07711a1b9719cc47e13a8205072859c1aef30fac28f412baa84b9cf9b?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/63cc5bb07711a1b9719cc47e13a8205072859c1aef30fac28f412baa84b9cf9b?s=96&d=mm&r=g","caption":"Aamir"},"logo":{"@id":"http:\/\/www.aamirharoon.com\/#\/schema\/person\/image\/"},"sameAs":["http:\/\/www.aamirharoon.com\/about\/","https:\/\/x.com\/aamir814"],"url":"http:\/\/www.aamirharoon.com\/?author=1"}]}},"_links":{"self":[{"href":"http:\/\/www.aamirharoon.com\/index.php?rest_route=\/wp\/v2\/posts\/144","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.aamirharoon.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.aamirharoon.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.aamirharoon.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.aamirharoon.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=144"}],"version-history":[{"count":24,"href":"http:\/\/www.aamirharoon.com\/index.php?rest_route=\/wp\/v2\/posts\/144\/revisions"}],"predecessor-version":[{"id":181,"href":"http:\/\/www.aamirharoon.com\/index.php?rest_route=\/wp\/v2\/posts\/144\/revisions\/181"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/www.aamirharoon.com\/index.php?rest_route=\/wp\/v2\/media\/165"}],"wp:attachment":[{"href":"http:\/\/www.aamirharoon.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=144"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.aamirharoon.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=144"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.aamirharoon.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=144"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}