Oracle Database Administrator Resume
Indianapolis, IN
PROFESSIONAL SUMMARY:
- Over 6+ years of IT experience, mainly Oracle Database Administration experience including Oracle11.2.0.4 on Exadata running on X4s, Oracle DB 12c on Oracle Engineered Systems Environment - Exadata platform, Oracle Enterprise Manager Cloud Control 12c & 13c Release 2, 11gR2 RAC on LINUX and Sun Solaris, Installation, Upgrading, Patching, sizing, creating Oracle Databases, and Oracle database Objects, data migrations, Troubleshooting, Performance & Tuning, Backup & Recovery, and Database integrity and Security.
- Hands on Exadata futures,ODA, Cellcli, DCLI, IORM, Flash Cache, Storage Index, HCC, ASR…TFA, SUNDIAG, ADRCI, ILOM Snapshot collection.
- Experience in translating business requirements into conceptual, logical, and physical data models.
- Experience with database supporting applications ( SAP, INET, EMPOWER, CHEMSTORE GeoX, Petrel Studio…).
- Experience with ETL tools like Pentaho, Talent and Dell Boomi
- Experience in configuring Oracle network, RMAN, Recovery Catalog, and Performance Tuning of database by optimizing SQL and PL/SQL scripts and instance. Used statspack report, AWR report, ADDM advisors, autotrace and execution plan.
- Excellent experience in installation, setup and configuration of Oracle 10g and 11g in HP-UX, Sun Solaris, Windows and UNIX/Linux environment.
- Proficient at performing major Database Release Upgrade (manually as well as using DBUA) along with applying various PSU patches using OPatch for 10g|11g|12c databases.
- Adept at routine Database Administration tasks including automated installation, creation and replication of databases, management of tablespaces, logs, grants, roles, users, indices.
- Working experience in database cloning, database backup, recovery procedures and security.
- Experience in application Support, SQL Loader, Data pump, Data Guard, Fine Grain Auditing (FGA), performing Flashback, transportable tablespaces.
- Experience in TDE(Transparent Data Encryption) 12C Keystore on Tablespace/Columns Master Encryption.
- Experience in designing and configuring high-availability systems using DATAGUARD with physical standby. Effectively used DATAGUARD BROKER utility.
- Experience in Tables Partitioning
- Hands on experience in installation and maintenance of enterprise manager 12c and Grid Control 11g and addition of targets for database Monitoring/Performance/Diagnostics purposes.
- Implemented and maintained 12c multitenant architecture using container and pluggable databases and performed conversion of non-container databases to pluggable databases.
- Experience in Performance Tuning, Tuned various large critical OLTP and OLAP databases using various tools like AWR, STATSPACK, ASH, SQL-TRACE, TKPROF, ADDM, and Explain Plan Utilities.
- Experience in the management and implementation of database models, data flow diagrams, database schemas, database scripts, to support a robust data management infrastructure.
- Qualified at writing SHELL Scripts and using CRONTAB for automatic backups.
- Adept at installation of OEM Database Control, OEM grid control and Deploying Agents.
- In-depth knowledge and understanding of Oracle Database features such as RMAN for backup and recovery, Materialized Views, Export/Import, Data Pump and Data Guard. Working knowledge of Auditing and Database Security.
- Experienced in Designing, Installing, Configuring and Maintaining Real Application Cluster (RAC) on Exadata using raw devices, OCFS, Automatic Storage Management (ASM) and SRVCTL utility.
- Excellent experience with Microsoft Excel, Word and PowerPoint.
- Hands on ORACLE GOLDEN GATE 12c configuration, deployments and management using Golden Gate commands (GGSCI), experience with replication using Manager, Extract, Pump and Replicate.
TECHNICAL SKILLS:
And Ticketing: Oracle (Oracle Enterprise Manager, SQL*Plus, SQL Loader, DBA Configuration Assistant) Toad, OEM Grid, RMAN, SQL*Loader, Exp/Imp/Data Pump, Statspack/AWR, Top, DBCA, DBUA, ADDM,SERVICENOW,IPcenter, Active Directory, SRVCTL CRSTL.
Operating Systems: UNIX (Solaris, AIX, HP-UX), LINUX, GXP, SDLC
Hardware: Sun Fire 15K, Sun 6320 Storage, Sun Enterprise Servers 890/880/420/450 , Sun StorEdge 6320, Hitachi, EMC, Dell Servers Red Hat Linux 6.5X.6.7
Middleware: BEA Weblogic 10.2.3,ODI
Tuning Tools: TKPROF, EXPLAIN PLAN,AWR/ADDM/ASH
PROFESSIONAL EXPERIENCE:
Confidential, Indianapolis, IN
Oracle Database Administrator
Responsibilities:
- Support many Exadata databases running Oracle11.2.0.4 on X4s & Standalones Oracle12.1.0.2 running on Linux 6.7 VMs servers and using Cloud Control 12C & 13C for monitoring.
- Provide Oracle DBA support for applications, including developing data migration scripts, data validation queries, and a maintenance plan for the various development versions of these applications.
- Provide documentation and support for all aspects of maintenance and development.
- Work with application development team staff to develop & test database architecture and approve all production schema changes.
- Constantly refresh from Production to Training, Test and UAT environment.
- Tune database instances and applications and recommend changes to improve database performance.
- Migration of data from sql-server to Oracle12C.
- Installation and configuration of Oracle 12C on Linux 6.7
- Mange RAC databases, instances, ASM and the clusters with the use of ASMCMD, SRVCTL and CRSCTL
- Handle all the aspects including new projects, manage existing databases, performance and tuning, contact for vendors, and internal/external customers.
- Maintain backups.
- Support databases that interface with ODI and PSmag applications
- Performed Installation and configuration of Oracle 12.2.0.1 database on HP-UX platform.
- Successfully performed migrations from Oracle 10g/11g to 11gR2 RAC (Real Application) Database.
- Responsible for Creating Users, Groups, Roles, Profiles and assigning the users to groups and grant necessary privileges to the relevant groups.
- Constantly monitor the dynamic performance Views (V$) at peak load of the Databases and checking RAC background processes log files & Trace files to troubleshoot performance
- Apply patches 11.2.0.3 and 11.2.0.4 DATA GUARD running on a 2 Node RAC
- Use shell scripts to check the status of databases such as growing table sizes, extent allocation, free space, used space, fragmentation etc.
- Maintain the data integrity and security using integrity constraints and database triggers.
- Part of on call of 24X7 support for all the production and development databases.
Confidential, Indianapolis, IN
Oracle Database Administrator
Responsibilities:
- DBA supported a 4 Node Exadata on X3 & X4s from Development, Test, UAT to Production environments, involving daily configuration, administration, all running on Red Hat Linux 6.5. Database sizes range from 500GB to 7TB (in MANHATTAN,ODS & FIN,OC11,SCI & EDW environments).
- Table refreshed and schema refreshes using Datapump, expdp and impdp .
- Database refreshed using expdp, impdp, RMAN Duplicate and cloning .
- Experienced in cloning the databases using HOT and COLD backups.
- Used RMAN Duplicate and EXPORT/IMPORT data from 9i to 11.2.0.4.
- Created a standby database by using RMAN Duplicate in order to reduce the down time for the PROD database during the migration process.
- Planned Backup/Restoration Strategy, Planning and scheduling Backups, taking Logical Backups (with Export/Import Data pump utilities).
- Installation of oracle enterprise manager 12c, oracle management repository and deployed agents.
- Constantly monitor the Golden Gate futures.
- Managed agents using emctl utility and creating incident rules in enterprise manager 12c
- Configuring administration groups, and creating template collections in oem 12c.
- Performed SQL and PL/SQL tuning, oracle contention and monitored production database using automatic workload repository (AWR), automatic database diagnostic monitor (ADDM) and Active Session History (ASH).
- Worked closely with the Oracle developers for the better performance in Applications, in writing the Packages, Triggers and Indexes on the tables.
- Used Secure SCP & FTP extensively for the File transfers from machines to remote server.
- Cloning & duplicating databases using scripts as well as RMAN for test and developments instances.
- SQL tuning and Database performance tuning has been done based on reports generated by SQL Trace, TKPROF, STATSPACK, Explain Plan, AWR , ADDM and monitor the database performance on daily basis.
- Responsible for setup and implementation of 2 Node RAC on Linux in 11g R2.
- Implemented Dataguard, creating both logical and physical standby databases in 10g and 11g RAC environment for production database.
- Worked closely with Systems Analysts, Systems Engineers/Admins & Application Developers through the SDLC from Development to Production, via Tech-Test in Needs Assessment, Requirements Gathering (Server hardware/OS specifications for Oracle Installs), Database Designing (Physical & Logical) and Implementation, database user creation and database access both at role & table levels, as well as final Project Performance Assessment/Evaluation.
- Created database Objects, Tablespaces, Schemas as needed.
- Schema migrations from Development to Production via Tech Test environments.
- Database refresh from Production to Tech Test as needed.
Tools: Used: Linux, HP-UX, SQL, PLSQL, SQL Developer, Toad, Oracle 10g/11g, RMAN, Oracle RAC, DATAPUMP, DATAGUARD, ASM
Confidential, Indianpolis, IN
Oracle Database Administrator
Responsibilities:
- Performed Installation and configuration of Oracle 11.2.0.4 database on HP-UX platform.
- Successfully performed migrations from Oracle 10g/11g to 11gR2 RAC (Real Application) Database.
- Implemented Logical and Physical Standby Databases for RAC cluster on Sun Solaris platform using Data Guard feature of Oracle 11g R2.
- Successfully performed data replication using Materialized views and Oracle Streams in Oracle 11gR2.
- Responsible for Creating Users, Groups, Roles, Profiles and assigning the users to groups and grant necessary privileges to the relevant groups.
- Supported off-hour on call support for database related issues.
- Created logical and physical design installed and upgraded databases.
- Experience in implementation of enterprise databases on enterprise Storage Solutions using Storage area Networks (SAN) and Network attached storage (NAS).
- Constantly monitor the performance (V$ dynamic performance views at peak load) of the Databases and viewing Alert log files & Trace files.
- Cloned/Migrated databases using RMAN and traditional Datapump export/import utilities in Oracle 11gR2.
- Implemented recovery strategies whenever required and successfully recovered databases in case database crash, media/disk failures by using RMAN.
- Scheduling the Physical backups (hot & cold) in CRON tab using RMAN utility and monitoring the scheduled jobs.
- Applied patches 11.2.0.3 and 11.2.0.4 DATA GUARD running on a 4 Node RAC
- Used to run the scripts to check the status of databases such as growing table sizes, extent allocation, free space, used space, fragmentation etc.
- Performed space management, capacity planning, disaster recovery and overall maintenance of the databases.
- Used SQL TRACE, TKPROF, EXPLAIN PLAN utilities for optimizing and tuning SQL queries.
- Maintained the data integrity and security using integrity constraints and database triggers.
- Provided 24X7 supports for all the production and development databases.
Tools: Used: Oracle 10.2.0.1, HP-UX 11, Sun Solaris 10.0, RAC, Oracle Streams, RMAN, Datapump, SQL TRACE, TKPROF, EXPLAIN PLAN
Confidential, Indianapols, IN
Oracle Junior DBA
Responsibilities:
- Configure. Implement & Deploy Oracle 11g (11.2.0.4) & Oracle 12C, single instances on
- The work involved overall Maintenance of Oracle Database, Backup, Recovery and other database related activities.
- Taking Backups on scheduled time and Monitoring Scheduled Backups.
- Creating and dropping of users, granting and revoking rights as and when required.
- Checking of Oracle files for abnormal behaviors.
- Day to day Performance Monitoring and tuning of database.
- Diagnose and Troubleshoot Database Problems and failures
- Involved in the Design (Logical & Physical) of Databases
- Preparing Backup and Recovery Plan.
- Involved in the installation of Oracle 11g(11.2.0.4) on both Solaris and LINUX platforms.
- Creation and maintenance of database.
- Handling day-to-day activities.
- Monitoring of database for growth and performance.
- Defined backup procedures using daily hot backups and weekly cold backup.
- Storage and space management including table spaces and data files.
- Creating Databases and all database objects. Database Designing, Designing Tablespaces and Rollback Segments.
- Management of table space growth, monitoring data files additions, extent growth.
- Constantly monitor the performance of the Databases and viewing Alert log files & Trace files.
- Using TKPROF, EXPLAIN PLAN for the Better performance.
- Ensuring proper online and offline backup. Periodical reading and checking of backups taken.
Tools: Used: Oracle 10.2.0.1, Oracle 10g (9.2.0.8), RMAN, Data pump, SQL TRACE, TKPROF, EXPLAIN PLAN
