How to Manage Inactive Sessions in the Oracle 23AI Database: Step-by-Step Guide
Introduction Manage inactive sessions in Oracle 23AI database can lead to unnecessary resource consumption and reduced performance. Managing these sessions efficiently ensures database stability and improves overall performance. In this guide, we’ll walk you through the best methods to identify, manage, and prevent inactive sessions. Understanding Inactive Sessions in Oracle 23AI Inactive sessions are database…
Admin
Top 50 Oracle DBA Interview Questions and Answers in 2025
Introduction The role of an Oracle Database Administrator (DBA) is critical in managing and maintaining Oracle databases. Whether you are an experienced DBA or a beginner, preparing for an interview can be challenging. This article provides the top 50 Oracle DBA interview questions and answers to help you ace your interview in 2025. Table of…
Setting Oracle Database Environment Variables after Installation on Linux/OL/Windows
Setting environment parameters after Oracle database installation involves configuring various environment variables and system settings to ensure that the database operates correctly. Here are some steps for Setting oracle database environment variables after installing an Oracle database: Step1: Oracle User Environment Variables: export TMP=/tmpexport TMPDIR=\$TMPexport ORACLE_HOSTNAME=oractl.a2z.comexport ORACLE_UNQNAME=cdb1export ORACLE_BASE=/u01/app/oracleexport ORACLE_HOME=\$ORACLE_BASE/product/19c/dbhome_1export ORA_INVENTORY=/u01/app/oraInventoryexport ORACLE_SID=oractlexport PDB_NAME=pdb1export DATA_DIR=/u01/oradataexport PATH=/usr/sbin:/usr/local/bin:\$PATHexport PATH=\$ORACLE_HOME/bin:\$PATHexport…
ORA-01034: ORACLE not available ORA-27101: shared memory realm does not exist – A Comprehensive Troubleshooting Guide
In this article, we present a detailed and comprehensive guide to understanding and resolving the ORA-01034: ORACLE not available and ORA-27101: shared memory realm does not exist errors that often challenge Oracle database administrators and developers. We have meticulously compiled expert insights and troubleshooting strategies to help you quickly diagnose and resolve these issues, ensuring…
oracle 19c deinstall utility on ol/rhel 8 fails with “error:null”
It seems like you’re encountering an issue with the Oracle 19c deinstall utility on Oracle Linux (OL) or Red Hat Enterprise Linux (RHEL) 8, and you’re getting an error message “error:null” This error message is quite generic and doesn’t provide much information about the root cause. further we can read more detail from oracle official…
Step by Step Guide: Oracle 19c Installation On Linux/Oracle Linux 8.x
In last article, we discussed step by step environment readiness before starting installation of oracle database 19c on Linux/Oracle Linux 8.x version. but in this article we will learn the step by step guide, Installing oracle 19c on Linux. In this article we will learn in detail how to oracle 19c step-by-step installation on Linux….
INS-20802- Oracle Net Configuration Assistant failed
During the installation of Oracle database 19c on Linux/OL8 , you may come across an error “ [INS-20802] Oracle Net Configuration Assistant failed ” This error occurred due to below error message. Further, you can read more detail from Oracle Official support portal [FATAL] [DBT-06103] The port (5,500) is already in use.ACTION: Specify a free…
Uninstall Oracle 19c in Linux/OL8 and remove Oracle configuration files completely
With some reasons, we need to remove or uninstall Oracle Database from our computer. for Oracle Database 19c, it is easy to remove Oracle software and configuration files on the operating system for a specific Oracle home using deinstall command. in this guide we describe how to remove Oracle software and configuration files for version Oracle 19c…