1.0Blog - Silicon Cloudhttps://www.silicloud.com/blogNoah Thompsonhttps://www.silicloud.com/blog/author/noahthompson/rich600338<blockquote class="wp-embedded-content" data-secret="EOk2fDlPo3"><a href="https://www.silicloud.com/blog/common-troubleshooting-for-oracle-database-problems/">Common troubleshooting for Oracle database problems</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://www.silicloud.com/blog/common-troubleshooting-for-oracle-database-problems/embed/#?secret=EOk2fDlPo3" width="600" height="338" title="“Common troubleshooting for Oracle database problems” — Blog - Silicon Cloud" data-secret="EOk2fDlPo3" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script> /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); //# sourceURL=https://www.silicloud.com/blog/wp-includes/js/wp-embed.min.js </script> The database cannot be started. To check if the database instance is correctly started, you can use the command lsnrctl status to view the listener status. Check if the database parameter file is correctly configured by connecting to the database using sqlplus / as sysdba and then using the command show parameter to view the […]