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Key Management in Oracle: The Core Issue: Missing Master Key

Posted on 12-May-202612-May-2026 By Admin No Comments on Key Management in Oracle: The Core Issue: Missing Master Key

Here is the step-by-step summary of the issue and the resolution, including the exact commands used. 1. The Core Issue: Missing Master Key In an Oracle Cloud (OCI) environment, every Pluggable Database (PDB) must have its own “Master Encryption Key” stored in a secure file called a Wallet. When you tried to clone YOURPDB, the…

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Oracle

SAT Mathematics 10 questions and answer at the end.

Posted on 30-Apr-2026 By Admin

10 SAT Mathematics Practice Questions to Sharpen Your Skills Preparing for the SAT Mathematics section can feel overwhelming, but targeted practice is one of the most effective ways to build confidence and improve your score. Whether you’re reviewing algebra, problem-solving, or data analysis, working through realistic questions helps reinforce key concepts and familiarize you with…

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top 10 AI news today

Posted on 30-Apr-2026 By Admin

Top 10 AI News Today: Oracle’s Latest Innovations and Industry Shifts Artificial intelligence continues to reshape industries at an unprecedented pace, with major players like Oracle leading the charge in enterprise AI solutions. From groundbreaking partnerships to cutting-edge product launches, today’s AI news highlights how businesses are leveraging AI to drive efficiency, innovation, and competitive…

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runon_allpdbs_show_conname.sh

Posted on 23-Apr-2026 By Admin No Comments on runon_allpdbs_show_conname.sh
#!/usr/bin/bash

ORACLE_HOME=/u02/app/oracle/product/19.0.0.0/dbhome_1

for v_inst in `ps -ef| grep pmon | awk '{print $8}' | grep -iv asm | grep -iv apx | awk -F"_" '{print $3}'`
do

echo "Instance name = $v_inst"
export ORACLE_SID=$v_inst

# Fetch the list of PDBs (excluding the Seed PDB)
# We use -S (silent) to keep the output clean for the loop
PDB_LIST=$(sqlplus -S / as sysdba <<EOF
SET HEAD OFF FEEDBACK OFF PAGES 0
SELECT name FROM v\$pdbs WHERE name != 'PDB\$SEED';
EXIT;
EOF
)

echo "----------------------------------------------------"
echo "Iterating through PDBs for SID: $ORACLE_SID"
echo "----------------------------------------------------"

for PDB in $PDB_LIST
do
    echo "Checking PDB: $PDB"

    sqlplus -S / as sysdba <<EOF
    set lines 120 pages 200
    ALTER SESSION SET CONTAINER = $PDB;
    SHOW CON_NAME;
    EXIT;
EOF
    echo "----------------------------------------------------"
done


done
Oracle, SQL scripts

runon_allcdbs_find_pdbs.sql

Posted on 23-Apr-2026 By Admin No Comments on runon_allcdbs_find_pdbs.sql
#!/usr/bin/bash
ORACLE_BASE=/u02/app/oracle
ORACLE_HOME=/u02/app/oracle/product/19.0.0.0/dbhome_1
LOGNAME=runon_all_localdb_$$.log

for v_inst in `ps -ef| grep pmon | awk '{print $8}' | grep -iv asm | grep -iv apx | awk -F"_" '{print $3}'`
do
 echo "Instance name = $v_inst"
 export ORACLE_SID=$v_inst
 $ORACLE_HOME/bin/sqlplus "/ as sysdba" << EOF >> ${LOGNAME}
 show user
 set echo off
 set numwidth 9
 set linesize 132
 set pagesize 300
 set feedback off
 set verify off
 set time off
 set timing off
 --select * from v\$instance;
 @/u02/scripts/paresh/find_pdbs.sql
 --select PROPERTY_VALUE from database_properties where PROPERTY_NAME='DEFAULT_TEMP_TABLESPACE';
EOF
done

cat ${LOGNAME}

rm ${LOGNAME}
Oracle, SQL scripts

Running PDB on single node in RAC

Posted on 09-Apr-2026 By Admin

Configuring a PDB to Listen on a Specific RAC Node in Oracle Database In Oracle Real Application Clusters (RAC) environments, you may need to restrict a Pluggable Database (PDB) to run on specific nodes. Here’s how to configure PDB MYPDB to listen only on node1: Step-by-Step Configuration 1. Configure the PDB State on Node 1…

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Oracle, RAC, SQL scripts

find_arc.sql

Posted on 09-Apr-2026 By Admin

Monitoring Oracle Archive Logs: A Quick Guide As an Oracle DBA, keeping a close eye on your archived redo logs is crucial for maintaining database health and ensuring smooth recovery operations. Today, I’ll share a simple yet powerful script that helps you monitor your archive logs effectively. The Power of v$archived_log The v$archived_log view is…

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Oracle, SQL scripts

pvm_pre_change.sql

Posted on 08-Apr-2026 By Admin

Automating Oracle Invalid Object Recompilation: A Practical Script As Oracle DBAs, we frequently encounter situations where database objects become invalid after patches, upgrades, or schema changes. Manually recompiling these objects can be time-consuming, especially in large databases. Today I’ll share a practical script that automates the generation of recompilation commands for all invalid objects in…

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Oracle, SQL scripts

find_encr_wallet.sql

Posted on 08-Apr-2026 By Admin

Managing Oracle Database Wallets: A Quick Guide Oracle Database provides robust security features to protect sensitive data, and one of the key components in this security framework is the Oracle Wallet. The wallet is a secure container used to store encryption keys, credentials, and certificates, ensuring that sensitive information is protected from unauthorized access. In…

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find_pdbs.sql

Posted on 08-Apr-2026 By Admin

Understanding Oracle Multitenant: Querying PDB Status Across Instances As an Oracle DBA working with Container Databases (CDBs), one of the most common tasks is checking the status of your Pluggable Databases (PDBs). Today I’ll share a useful script that provides a comprehensive view of all PDBs across all instances in your Oracle RAC environment. The…

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Recent Posts

  • Key Management in Oracle: The Core Issue: Missing Master Key12-May-2026
  • SAT Mathematics 10 questions and answer at the end.30-Apr-2026
  • top 10 AI news today30-Apr-2026
  • runon_allpdbs_show_conname.sh23-Apr-2026
  • runon_allcdbs_find_pdbs.sql23-Apr-2026
  • Running PDB on single node in RAC09-Apr-2026
  • find_arc.sql09-Apr-2026
  • pvm_pre_change.sql08-Apr-2026
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