Sr Oracle Database Administrator Resume
GA
SUMMARY
- Over all 11 years of experience in Oracle working as a Sr Oracle Database Administrator, RAC Administration and also Application DBA on various platforms .
- Oracle Exadata, RAC Expert in Oracle database technologies aspect. Having expertise skill in Install, Configure, Upgrade, Migrate, Maintain and Support Oracle Databases, related tools and products on various Infrastructure platforms.
- Expertise in support Oracle Real Application Clusters and Oracle Exadata Machine environment includes cell nodes administration which is hosting critical applications of database environments for Investment Banks & Financial Institutions.
- Hands on experience in GlodenGate configuration and support.
- Hands on experience in configuration of Oracle Real Application Cluster 11g/10g/9i databases on Linux/Solaris Servers
- Hands on Experience in Oracle Real Application Cluster (RAC), ASM, Data Guard configurations, administration and troubleshooting.
- Have work exposure to third party Vendor High availability product such as VERITAS Cluster ware.
- Experienced in oracle clusterware patching, CRS & Voting disks backups and restore.
- Having hands on experience in Upgrade/Migrate Oracle Database from 8.0 to 9i, 10g,11g and 12c.
- Experienced in applying One - off patches, Patch sets, CPU/PSU Patches against Cluster and standalone database infrastructure.
- Experienced in Oracle binaries Home/Database refresh between prod and Uat/dev environments using cloning method.
- Hands on experience of database backups and Recovery strategies using RMAN, Hot Backup, Export, and Transportable Tablespace.
- Experienced in Capacity Planning, Configuration, Installation, Upgrades and High Availability (HA) solutions and & Backup & Recovery, performance tuning & Cloning.
- Expertise Confidential database administration activities such as monitoring database instances activity for blockers, waiting sessions, locks, dead locks, services start-up problems, Cluster management, connectivity problems, and max session reached errors etc…
- Interfacing wif Oracle technical teams for upgrades, versions and utilities.
- Proactive O/S, Applications & Database Maintenance & Monitoring.
- Create & Maintain UNIX Shell scripts and automating activities through shell scripting.
- Experience in Oracle E-Business Suite 11i, R12.1 and R12.2.
- Administration and management of Oracle E-Business suite which included patching using adpatch, rapid cloning using adpreclone.pl and adcfgclone.pl, schema password change using fndcpass, files version identification using adident, administration, compilation and re-linking application objects using adadmin etc.
- Upgrade 12.1.3 to 12.2.0 and 12.2.0 to 12.2.4 on linux and Sun OS.
- Installation of OEM grid control, configuration and installing agents on all database servers.
- Demantra installation and integration.
- Proficient in scheduling jobs, patches, alerting for databases, hosts and also database administration through OEM grid control.
- Expert in Performance Monitoring and Tuning of Oracle Databases on Unix/Linux platform
- Patch analysis, PAL creation and estimate downtime for teh patching
- Creating Custom Top, Responsibilities, menus, value sets, XML templates, data definitions and performing application sysadmin activities
- Performance Tuning using SQL Tuning Advisor, Statspack, ADDM and AWR report
- Configuring Work flow mailer and alerts
- Plan, test & implement teh database Backup & Recovery strategy depending on teh database size. Checking teh daily, weekly, monthly backup status
- Maintaining teh Technical document, Patch log and Activity log
- Creating and Managing Users, Responsibilities and Request Groups
- Planning for storage spaces requirements and placing them for optimum me/O performance
- Installation and administration of web tools like 10g Application Server, Oracle Internet Application Server (9iAS), weblogic, 10g OID, SSO, ODI and Oracle Portal.
TECHNICAL SKILLS
Operating Systems: Sun Solaris, RH Linux, Oracle Linux, IBM AIX
Database: Oracle 8i/9i/10g/11g, 12c, PostgreSQL, MongoDB
Database Administration: Oracle 8i/9i/10g/11g/12COracle EBS: Oracle E-Business Suite 11i, R12.1, 12.2
Other Administration: Fusion WebLogic 10g, 11g.
Database Tolls: Oracle RMAN, Export-Import, SQL Loader, TOAD, DBCA, Netca, ASM, RAC, TOAD, PLSQL Developer, GlodenGate, Sql Loader Utility, OEM Grid Control, NETCA.
Languages: PL/SQL, SQL*Plus, UNIX shell scripting, Unix CRON jobs.
PROFESSIONAL EXPERIENCE
Confidential - GA
Sr Oracle Database Administrator
Responsibilities:
- Provides high technical expertise for teh planning, analysis, design, development, implementation, maintenance and control of teh organization’s server-class databases.
- Participating and monitoring in stress tests.
- Identifying performance bottlenecks using AWR and ADDM reports and resolving them.
- Worked on SQL and PL/SQL tuning.
- Worked on Oracle 11g/12c Grid Control including monitoring/setup and performance tuning purposes.
- Creation, configuration and monitoring Shards sets. Analysis of teh data to be shared, choosing a shard Key to distribute data evenly.
- Identifying deadlocks and other lock contention issues during stress tests.
- Extensively involved in fine tuning home mortgage application SQL’s.
- Proactive tuning, suggesting recommendations to avoid performance problems.
- Extensively used EXPLAIN PLAN, Auto Trace and TKPROF for query refining.
- Analysis of Execution plans for each and every query for above application and recommending required Indexes, hints and partitioning to improve SQL query performance.
- Setup, configuration and installation of teh RAC environment and ASM.
- Developed multiple automation scripts using shell script
- Used Grid Control and OEM Tool to monitor Stress tests.
- Oracle Advanced features to resolve performance issues.
- Extensively worked on Partitioning to improve performance.
- Extensive noledge for PL/SQL programming.
- Performed POC for implementation of Oracle 11g new features.
- Architectural design for Gloden Gate Implementation.
- Participated in designing and development of software using agile development practices.
- Performed research and development tasks to design and implement new components
- Developed user interface (UI) and data analysis component wif integration of duplicate file finder
- Created automated diagnosis, testing and debugging modules
- Lead architect in data retention and data purging strategy.
- RMAN for backup and recovery.
- Dataguard for maintaining physical standby database.
- Exploring 12C database new features on local machine.
Environment: Oracle 10.2.0.4/11.2.0.3/11.2.0.4 , 12c Super Clusters RAC, Backup Scheduler, Linux/HP/AIX/Sun Solaris 9&10, Veritas Cluster, OEM/OEM Grid Control, Data guard,GlodenGate and RMAN.
Confidential, GA
Oracle Database Administrato
Responsibilities:
- Maintaining High availability Oracle Instances on Real Application Clusters wif high-end 24*7 support process.
- Monitoring critical errors such as locks, dead locks, services start-up problems, Cluster management, connectivity problems, and max session reached errors and etc…
- Participated in setting up of cron jobs for backup jobs, service monitoring alerts, disk space utilization threshold alerts.
- Monitoring Cluster Services, resources status using cluster server manager and teh logs of scheduled rman backup, export jobs and data load jobs.
- Configuration management and monitoring for database, application resources in HP Openview monitoring tool.
- Monitoring of cluster resources on RAC environment wif VERITAS cluster server manager.
- Participation in Change review board meetings and coordinating wif application support team and execution of change requests as per schedules.
- Documentation and maintain database, application standards, Fix teh issues and provide root cause analysis.
- Ensure Database RMAN, other backup operations happening smoothly all over enterprise environment.
Environment: Oracle 10.2.0.4/11.2.0.4 , Sun Solaris 9&10, SQL,PL/SQL,OEM/OEM Grid Control and RMAN.
Confidential
Oracle Database Administrator
Responsibilities:
- Responsible for issue resolutions participates in client meetings and presentation.
- Managed performance of team members, career, training and development planning.
- Facilitated goal and objective setting, promotions and performance reviews.
- Installation and Configuration of Oracle 11g R2 Real Application Clusters (RAC) databases on OEL 5.5
- Responsible for managing and supporting all Production, Development and Staging instances of Oracle Version 10g & 11g.
- Adding nodes to existing RAC environment.
- Cloning teh Oracle Applications from Production to Development servers.
- Performing Logical backups using Export and Expdp Utilities.
- Performing daily incremental backups, weekly backups using RMAN.
- Schema, Table, Database refreshes on demand for dev teams
- Cloning teh databases from Production to Test environment using Hot/cold/export/RMAN backups.
- User creation and providing necessary Roles, Privileges and quota as per teh requirement.
- Monitoring teh Table spaces and adding/resizing datafiles.
- Created indexes and rebuild indexes in order to improve query performance.
- Configured physical standby database (DATAGUARD) and tested for failover and switchover.
- Configured teh Cloned databases for reporting purpose.
- Generating AWR reports to monitor database health.
- Oracle Application patching 11i/R12(code level A,B)
- Oracle Database Patching.
- Create data source in SOA.
- Upgrading teh database from 9.2.0.6 version to 10.2.0.3 version
- Doing cross platform migration using Export/Import from Sun Solaris to Linux server.
Environment: Oracle 10.2.0.4/11.2.0.4 , Sun Solaris 9&10, SQL,PL/SQL,OEM/OEM Grid Control, Glodengate and RMAN.
Confidential, NJ
Oracle Database Administrator
Responsibilities:
- Managing and supporting Production, Development, Test databases (9.2.07, 9.2.05, 8.1.7.4) and Oracle Applications (12.1.3,11.5.10, 11.5.9, 11.5.8, 11.5.5, 11.5.2)
- Study existing Production environment and prepare an approach document for Migration.
- Participate in planning wif server management team to setup teh SAN storage devices multipath configurations that includes pre-requisites, kernel configuration, and installation of Oracle software, configuring public/private and virtual IP addresses required for multi instances.
- Implementation of multi node Oracle10g RAC production setup wif 5TB of SAN storage using Oracle ASM feature.
- Configured ocfs2 filesystem and Installed Oracle 9i RAC on RedHat Linux 4.0 using 9i cluster ware for Production systems across multiple environments.
- Plan and perform database migration of 1TB size wif minimal downtime.
- Prepared backup strategy for high availability systems and Implemented shell scripts to perform RMAN level0 and incremental backups as per policy.
- Create DR database site for production database and configure Standby database for high availability and for huge report activity.
- Perform and assist application team in testing Oracle Forms, Oracle Pro*C applications and backend SQL, PL/SQL code after migration and application bit conversion.
Environment: Oracle 10g/9i, RedHat Linux 4.0, SQL, PL/SQL and SQL*Loader.
Confidential
Oracle Database Adminstrator
Responsibilities:
- Installing R12 Oracle applications, cloning, patch analysis
- Experienced in oracle clusterware patching, CRS & Voting disks backups and restore.
- Having hands on experience in Upgrade/Migrate Oracle Database from 8.0 to 9i, 10g,11g and 12c.
- Experienced in applying One-off patches, Patch sets, CPU/PSU Patches against Cluster and standalone database infrastructure.
- Experienced in Oracle binaries Home/Database refresh between prod and uat/dev environments using cloning method.
- Hands on experience of database backups and Recovery strategies using RMAN, Hot Backup, Export, and Transportable Tablespace.
- Implementing Disaster recovery
- Implementing PCP and DMZ
- Oracle Application Database upgrade from 9.2.0.6 to 10.2.0.4
- Creating dblinks and resolving application issues faced by developers
- Monitoring database backups
- Production support
- Monitoring Standby database
Environment: Oracle 10.2.0.4/11.2.0.4 , Sun Solaris 9&10, SQL,PL/SQL,OEM/OEM Grid Control and RMAN.
Confidential
Oracle DBA
Responsibilities:
- Installed teh Oracle 8.1.7/9i on Linux, Windows NT and created teh Database.
- Regular performance of teh daily statistics report of various instances which halps in determining how efficiently teh shared memory is being used
- Database security by creating users, managing their roles and privileges.
- Create and manage Rollback Segments.
- Test plan preparation of different types of recovery scenarios
- Connecting to remote databases in districts using Telnet via aliases.
- Allocating system storage and planning for future storage requirements for teh databases.
- Responsible for regular backups
- Implemented standby database.
- Logical Backups by using export and import utilities and taking scheduled/unscheduled backup as per a backup plan using EXP, IMP and Hot backup strategy
- Managing Oracle Instance and Database, Managing Control, Redo log, data files and Tablespaces
- Backups- Logical and Physical for Multiple Instances
- Backup & crash/disaster Recovery Locally & Remotely.
Environment: Oracle 8i and 9i, SQL,PL/SQL and RMAN.