AWS EC2 and RDS

 

Please refer the below AWS documentation:

What is Amazon Relational Database Service (Amazon RDS)? - Amazon Relational Database Service

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AWR Report Analysis

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AWR report analysis is important for  Oracle DBA on Daily issues or P1/P2 issues time. Below some of the main things we general look to figure out issue. 1. 2.  3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13.
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Goldengate 19c Installation with issue resolution

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Oracle 11g Physical Standy Setup

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Oracle 12c 2-node RAC setup in VMware Player 15 -- Part01

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Tried to install Oracle 12c 2-node RAC for testing purpose but due to low Hardware configuration, ended up with Single Node RAC. I got lot of issues during Installation and tried to resolve them with my best knowledge. Please find below installation steps and troubleshooting. Main issues started from Step90. you can go through quickly. Requirements Most of the times, bridge option in VMWARE will not connect with host machine. I tried below option to use internet connection from host machine. We need to cross verify vmnet8 is NAT or not. Installation Steps Step1 launch VMware and click on New Virtual Machine Step2   select OEL iso Image Step3 Provide New Virtual Machine Name Step4 Provide HDD size and select single virtual disk. Step5  Select host setting for monitor and Network as NAT Step6 New Virtual Machine is ready for launch. Step7 OEL Installation starts automatically. Press Enter Step8 Skip Disk Checking Step9 Click Next Step10   Select langu...
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Oracle to Postgres

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  Round 1: Created metadata for tables, sequences, packages Round 2: Created indexes Round 3: freeze column name to freezes to_date function updated GEOMETRY datatype , installed POSTGIS package to support this datatype Round 4: created triggers created Functions Migration: bash-4.2$ pwd /usr/edb/migrationtoolkit/etc bash-4.2$ cat toolkit.properties SRC_DB_URL=jdbc:oracle:thin:@localhost:1521:orcl SRC_DB_USER=hr SRC_DB_PASSWORD=hr TARGET_DB_URL=jdbc:edb://postoffline:5444/dev TARGET_DB_USER=enterprisedb TARGET_DB_PASSWORD=password bash-4.2$  -bash-4.2$ pwd /usr/edb/migrationtoolkit/bin -bash-4.2$ ls -lrt total 724 -rwxr-xr-x. 1 root root   2439 Dec 11 13:29 runJavaApplication.sh -rwxr-xr-x. 1 root root    544 Dec 11 13:33 runMTK.sh -rwxr-xr-x. 1 root root 729258 Dec 11 13:33 edb-migrationtoolkit.jar -bash-4.2$  ./runMTK.sh HR OUTPUT: Running EnterpriseDB Migration Toolkit (Build 55.7.0) ... Source database connectivity info... conn =jdbc:oracle:thin:@o...
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Execution_Explain Plan

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Active Session History Analysis

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ASH  analysis is important for  Oracle DBA on Daily issues or P1/P2 issues time. Below some of the main events we general look to figure out issue. RAC / Cloud RDS: 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. Redo Generation: 14. 15. 16. 17. 18. 19.
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General Queries

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Fragmentation & Re-organisation

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OEM patches & vulnerabilities

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