SUMMARY:

• Over 8 years of experience of Oracle Database Administrator including 10g, 11g and 12c
• Experience maintaining Exadata.
• Managed databases on Linux, Solaris, Windows, AIX and HPUX.
• Build RAC Clusters.
• Build Disaster Recovery sites using Oracle Data Guard. recently migrated 11g and 12c database to another data center using Oracle Data Guard feature with a minimal downtime.
• Installed and configured databases using silent install, OMF and via scripts.
• Has extensive knowledge in dynamic views and dictionary tables.
• Applied CPU and PSU patches.
• Extensive experience in OS space and tablespace management.
• Worked on database security and Fine Grain Auditing.
• Extensive work on shell scripting and documentation.
• Excellent Experience as Production DBA with 24X7 supports.
• Extensive experience in backup and restores using RMAN
• Managed databases on Exadata and Golden Gate.
• Cloned databases using RMAN duplicate and used Data Pump for object level refreshes.
• Excellent Experience in installing and maintaining Oracle Data Guard to implement physical Standby Database for Disaster Recovery in 10g, 11g, 12c and Providing Critical Solutions with DR options
• Experience in taking Logical Backups by using Oracle Utility EXPDP and IMPDP and experience in loading data from flat files to database using Oracle utility SQL*Loader
• Managed databases using Exadata.
• Experience in Migration of databases from standalone to RAC
• Excellent experience of data migration, data archiving and data access techniques
• Installed and applied patched to oracle database and application
• Hands on experience in Hot/Cold Backup, Recovery Cloning of databases using RMAN with TSM Backup.
• Skilled in setting up Standby Database using shell scripts and RMAN utility tool, activating and Re - building Standby Databases both Physical and Logical supported by DATAGUARD.
• Implemented RMAN backup (Full, incremental and cumulative) and recovery, in complete recovery and disaster recovery using Data Guard.
• Experience in tuning Different components and identifying bottle necks
• Installed and managed Oracle GoldenGate.
• Hands on Experience in Performance tuning and optimization of SQLs.
• Analyzed database performance using ASH, AWR and ADDM reports.
• Managed databases on Exadata.
• Creating and Managing Users, Roles and Privileges with required security implementations
• Expert in encryption for databases using Wallet Manager
• Database replication using snapshot, materialized views and advance replication methods
• Strong in writing shell scripts to setup cron jobs for checking Adaptive server's availability, backup of databases and crucial system tables, nightly batch jobs for data transfer between servers.
• Flexible and excellent team player. Ready to work in any shift.
• Excellent troubleshooting skills and quick learner.
• Extensive coordination with offshore team.

TECHNICAL SKILLS:

Oracle 12c /11g/10g, ASM, RAC, Partitioning, Exadata, Upgrades, MigrationLinux, Solaris, AIX, Windows, Exadata, Cloning, RMAN, Patching, 12c cloud control, SQL Tuning.

PROFESSIONAL EXPERIENCE:

Confidential, OH

Oracle DBA

Responsibilities:

• Install Oracle 11g RAC with 4 nodes on RHEL platform with ASM.
• Configured & designed and Developed the Backup and Archiving, Disaster Recovery in AWS Cloud.
• Monitor database performance using OEM Cloud Control and run ADDM, ASH, AWR reports.
• Experience with Unix Shell scripting, SQL, PL/SQL and upload data using SQL*Loader.
• Migrate Database across different servers and platforms using and Data Pump Export/Import and perform database Refresh and RMAN Cloning.
• Planned and implemented Disaster Recovery solutions using Oracle Standby Database/Data Guard
• Rebuild Indexes, table partitioning, tuning memory usage and SQL tuning using Explain Plan, SQL Trace, TKPROF and Statspack for best performance.
• Manage alerts, notification, jobs and Solve ORA errors and Fix Bugs with the help of Oracle support and Meta Link.
• Manged databases on Exadata
• Migrated non-asm database to ASM on Exadata.
• Applied patches on Exadata cell nodes.
• Installed OEM agents
• Administer RAC Database servers using srvctl, crsctl etc.
• Restore and point-in-time Recovery of database using RMAN techniques.
• Configured ASM and suggested feasible workarounds for ASM Metadata corruption and Configured user log on load balancing and failover on RAC database.
• Worked closely with client’s team.
• Worked closely with offshore team.
• Provide on-call support
• Applied CPU/PSU patches.
• Managed uni-directional Goldengate environments.

Confidential, Visa Card Columbus, OH

Oracle DBA

Responsibilities:

• Build Oracle 11g with Physical Stand by Data Guard.
• Build RAC node clusters.
• Created databases using scripts, OMF and via silent installs.
• Handling the code deployments developed by Developers on Dev, Test and Production.
• Managing users, profiles, roles and table space according to the requirement.
• Created shell script to automate jobs.
• Database user backup using Export /Import Utility. And database backup using data pump.
• Production refresh to PRR environment and conversion environment when required.
• Done partitions on tables and indexes to get better performance on large tables.
• Monitoring Backup report, Database sync report (Verifying Production & Standby Database Synchronization), AWR report and wait events reports using OEM and Custom scripts.
• Configured OEM for the performance monitoring and database administration.
• Monitored indexes and analyzed their status for performance tuning and query optimization
• Installed Oracle GoldenGate and setup uni-directional replication.
• Migrated Oracle Non-RAC databases to Oracle RAC databases.
• Migrated Oracle database from file system to ASM.
• Define database backup/restore procedures using RMAN and TSM. Manage database backups and perform recovery. Participate in DR exercise twice a year to validate recovery procedures.
• Prepare documentation and baselines. Analyze gap assessment and create road maps to overcome those gaps using Oracle best practices.
• Perform database tuning and performance monitoring at the OS level, DB level and SQL level. Analyze data and make recommendations relating to performance and efficiency of data storage. Perform capacity testing before implementing new major application release to production environment. Provide advice and solution to Application Development Team to have effective use of indexes, how to reduce waits or other advices from OEM Grid control.
• Work with the system administrator and storage administrator to perform software installations, and to configure hardware and software so that it functions optimally with the Oracle infrastructure.
• Monitor and maintain database security. Co-ordinate with Security administrator in adding, maintaining and removing users account, administering quotas, auditing, and checking for security issues.
• Written shell scripts to automate tasks.
• Provide after hours and weekend on-call support on a rotation basis.

Confidential, Chicago, IL

Oracle DBA

Responsibilities:

• Installed, configured, and maintained Oracle 10g and 11g on Linux
• Upgraded from Oracle 10g to 11g.
• Performed the migration from Tandem to Oracle 11g.
• Performed Database Refresh from Production to Development databases.
• Installed RAC on Oracle 10g and worked on ASM feature of Oracle.
• Worked closely with developers during release and used oracle advanced features to achieve minimum downtime.
• Good experience in Performance tuning of large databases.
• Data Guard administration and maintenance.
• Monitoring Day-to-Day Backups, Log's & recovering them as per the requirement. Utilized Log Miner Technology & applied Application Database Transactions on other Databases.
• Successfully implemented Backup & Recovery using RMAN, Hot and Cold backups.
• Taking the RMAN incremental and cumulative backups.
• Scheduling the databases backup using Cron tab and VERITAS net backup.
• Perform Logical backup using full/partial export/import and data pump.
• Creating Logical and Physical database structure, Creating and altering Tablespaces. Managing Users and Resources, Granting and revoking privileges through Roles.
• Provided instance level performance monitoring and tuning for Event Waits, Sessions, Physical and Logical IO and Memory Usage.
• Supported development teams by providing SQL statement tuning and optimizing ETL procedures and removing load and query performance bottlenecks by using tools EXPLAIN PLAN, STATSPACK, and TKPROF.
• Perform Daily Monitoring of Oracle Instances, monitor users, and table spaces, Memory Structures, Rollback Segments, Logs and Alerts.
• Creation of Users and granting them the required Roles and Privileges accordingly.
• Involvement in space management, managed quotas.
• Implemented advanced features of Oracle 10g such as Automatic Database Diagnostic Monitor (ADDM), Automatic Workload Repository (AWR) for monitoring database performance.
• Configuration of Listener and Net Service names using NETCA and NETMGR.
• Cloned schemas, objects and data on new server using Data pump.
• Managing databases on multiple servers.
• Worked extensively on monitoring 10G grid control database, configuration of error notifications, installing listeners, and adding them to the grid control.