Posts Tagged ‘database’
Checking Database Feature Usage Stats
Today I came across view DBA_FEATURE_USAGE_STATISTICS (10g) which let’s us know whether particular Database Feature has been used till now or not. If yes, then it also let’s us know when it was used for the first time and also the last usage time. This can be [Read More]
10.2.0.4 Window’s Patchset overwrites Sqlnet.ora
Not sure, how many of you are aware of this alert. Oracle has published an Alert document NOTE:726418.1 -ALERT: The 10.2.0.4 Windows Patchset Overwrites %ORACLE_HOME%\network\admin\sqlnet.ora According to it, Patch 6810189 – 10.2.0.4 RDBMS patchset on Microsoft [Read More]
Simplified Approach to Resolve ORA-4031
After writing few Case studies and other related articles, I will be sharing my approach for Resolving ORA -4031 error. First we will see what ORA-4031 actually means. 04031, 00000, "unable to allocate %s bytes of shared memory [Read More]
Oracle Database 11G Installation on Solaris 10
I had installed Oracle Database 11g on Solaris 10 few days back. I thought of documenting the steps for easy reference. Please find below steps for the same Installation Pre-Requisite Refer to Oracle Database Installation Guide 11g Release 1 (11.1) for Solaris Operating [Read More]
Effect of OS Terminal Setting “STTY” on Oracle Database
Few days back, while trying to create a synonym over dblink I experienced following error: SQL> create synonym synonymn_name for dual@DBLINK9i; SP2-0042: unknown command "DBLINK9i" - rest of line ignored Strange error !!! Also while trying to perform a simple [Read More]
High Database Sessions
Yesterday I was working on issue where our Monitoring system reported increased number of database connections. We were already aware of this issue and application team was asked to look into it. On checking GV$RESOURCE_LIMIT, we found that it had touched the limit value on [Read More]
ORA-01426 After Upgrade to 10g
Oracle seems to have a tendency to make small changes to database code which impacts application in a big way. Sad part is, these changes are not always documented properly. One of these cases is what I encountered. A simple PL/SQL code errors out as below: Oracle Database [Read More]
ORA- 4031 – A Case Study
Today I will be taking up one ORA-4031 issue we faced on one of our client database. Please note that SQL statements mentioned below have been changed and does not reveal any confidential information. Our client was facing ORA-4031 on a 9.2 database.This was a new Database [Read More]
Resolving Shutdown Immediate Hang Situations
Many times Oracle DBA’s are faced with a situation where shutting down the instance with shutdown immediate seems to take infinite time and gives a impression that the session is hung. In most of the cases this is not a hang. Hang can be defined as a scenario when few [Read More]
Solving ORA-1031 while connecting as “/ as sysdba” :
Many times we see an issue like this: SQL> conn / as sysdba ERROR: ORA-01031: insufficient privileges This is a very common and frequent error that can occur after the new oracle software install or due to some permissions changes at OS level. I will dicuss the approach [Read More]
AWE -What is It and How to use it?
32-bit Operating systems provide 4Gb of addressable space to applications. This includes memory for the user application and also for the system. When running Oracle on 32-Bit Windows, we can have total memory limited to 1.7 Gb only. If you allocate memory more then 1.7 GB [Read More]
Recovering from ORA-1578 ORA-8103 (Logical Corruption)
1. For ORA-1578: There are two ways in which we can extract the data from a corrupted table: a) Using DBMS_REPAIR.SKIP_CORRUPT_BLOCKS b) Using Event 10231 a) Connect as sysdba user: execute [Read More]
ORA-00600 [12333]
ORA-00600 with is an error that I have encountered on multiple occasions. This post is to shed some light on what this error is all about. To start with let us try to understand when does oracle report ora-00600 error. An ora-00600 error is raised in the exception handler [Read More]
10.2.0.4 on AIX5L (64-Bit) is Out
As usual Laurent has been first to locate that 10.2.0.4 on AIX5L (64-Bit) is Out. Patchset size is whopping 1.9G which I believe is the maximum size for Oracle Patchset till date. Looks like 10.2.0.3 on AIX had lot of bugs or it could be that DATABASE REPLAY feature needed [Read More]
ORA-07445 [opidsa()+480] – Metalink Alert for 10.2.0.3
Oracle has reported a new Alert for user’s who have upgraded their databases to 10.2.0.3 patchset on windows. User processes dumps core dumps with following errors ORA-07445: exception encountered: core dump or ORA-07445: exception encountered: core dump [Read More]
