Readmeout Oracle DBA Blog Specifically Focusing on database administration, RMAN Backup and recovery, restore, cloning, performance tuning and sharing best practices.
In this post we will fix ORA Error in oracle database. Oracle database symptoms ORA Error :- 1. Symptoms Memory heap error ORA-7445[kssrem] and ORA-7445[kggchk] is reported in the alert.log and PMON terminates. ORA-07445: exception encountered: core dump [kssrem()+176] [SIGSEGV] [Address not mapped to object] [0x000000008] [] [] ORA-07445: … Read more
Recently I have faced and resolved the ora 1691 unable to extend lobsegment APPLSYS.SYS_LOB in tablespace APPLSYSD in our production environment. How to fix ora 1691 unable to extend lobsegment. Error: ORA-1691: unable to extend lobsegment APPLSYS.SYS_LOB0000255030C00040$$ by 1574805 in tablespace APPLSYSD Analysis and Solution: Step1: Verify Free space in tablespace & Check data file … Read more
Resolving Shutdown Immediate Hang Situations | Sometimes we are facing the situation were shutting down the instance with shutdown immediate seems to take infinite time and database look like that the session is hung. In most of the cases this is not a hang. Hang can be defined as a scenario when few sessions/processes are … Read more
Introduction: – In this post we will discussed How to restore RMAN backup from PROD to TEST database 10g,11gR2,12c,19c:- The situation here is we have taken an RMAN backup on PROD (Source) and we need to restore those backup pieces on different server as TEST (target) database. It’s actually cloning the database from … Read more
Here is ‘steps to recover Applications context file if it is corrupted or deleted’. If the Oracle Applications Context file is corrupted or deleted, then we need to follow the below steps to recover the Context file as well. To retrieve/recover Applications context file. Run the adclonectx.pl as shown below. perl /clone/bin/adclonectx.pl retrieve On being prompted … Read more
In this post we will discuss how to configure DMZ (Isupplier on external node) on shared file system. To add external node, we must follow the below steps. Steps to Add Node to a Shared Application Tier File System for Oracle E-Business Suite R12 Configuring DMZ in R12. Here we will know ‘how to configure isupplier (dmz) in … Read more
In this post we will learn how to check ora error on oracle database using shell scripts. We can prepare scripts and schedule to monitor error in alert log., due to this error our database not functioning as expected. To overcome this issue well prepare proactive alert to check the ora error if any. How … Read more
Schedule shell script for tablespace report in oracle database| In this article we will explain ‘how to generate Tablespace report’ in oracle database and automate alert on mail using mailx. To pull out tablespace report in oracle database. We will prepare the shell script as below and schedule it using crontab. Step 1:- Prepare tablespace … Read more
In this post we learn how to manage Temporary Table space in Oracle Database. | Temporary tablespaces are providing temporary space for database sort operations and for storing global temporary tables. To Create user with default tablespace and temporary tablespace. SQL> CREATE USER scott DEFAULT TABLESPACE data TEMPORARY TABLESPACE temp; SQL> ALTER USER scott … Read more