Sr. Oracle Dba Resume
Santa Fe, NM
PROFESSIONAL SUMMARY:
- Over Seven plus years of experience in full application life cycle development, testing and production in Information Technology - Software Industry
- Experience with Oracle 9i,10g,11g and 12c on Unix & Windows operating systems
- Oracle Certified DBA with experience in installation, configuration, tuning and troubleshooting
- Installation and Configuration of Oracle 12c Real Application Clusters (RAC) with Automatic Storage Management (ASM)
- Experience with RMAN, Oracle Enterprise Manager (OEM), OEM Grid control, Data warehousing, Oracle Data Guard
- Strong knowledge on GRID/CRS, OCR, VOTING, OLR, GPNPD, GLOBAL CACHE mechanism.
- Well versed with Database Administration, Cloning of Database, Backup and Recovery strategy using RMAN and User Managed
- Experience in using data pump import/export utility of ORACLE
- Experience in database migration by designing and implementing database logical and physical storage structures
- Experience on Oracle 11i applications with knowledge of CRM, EBS, HR and finance
- Experience in optimizing database access and allocates/re-allocates database resources for optimum configuration, database performance and cost
- Extensive experience in daily batch and report monitoring, space management, index rebuilds, statistics collection and other Oracle housekeeping tasks
- Extensive Knowledge about Oracle Golden Gate in implementing one way and bi-directional replication and experience in performing disaster recovery exercises.
- Developed database support processes and automated tasks through tools, PL/SQL and UNIX Shell Scripting. Oracle SQL*Net, SQL, PL/SQL, writing triggers, functions and PL/SQL procedures, Functions, creating Tables, Views and Indexes
- Experience with scripting skills like shell scripting, python and Windows Batch Scripts
- Expertise in data modeling and database designing and extensive knowledge of relational database concepts.
- Strong Oracle PL/SQL development background besides DBA skills
- Experience in database security strategies by creating database Implemented & monitored daily, weekly and monthly batch jobs in database
- Experience in backup/restore, disaster recovery using RMAN & OEM Grid Control
- Upgrading and Migrating Databases from lower versions to higher versions
- Experienced in Planning, Installation, Physical and Logical Database Design, Backup and Recovery, Cloning, Refreshing test and development databases, Monitoring, Troubleshooting & Tuning
- Experience in analyzing database & rebuilding indexes to improve database performance
- Experience in Leading, Motivating and coordinating team of developers
- Applying oracle patches (CPU, PSU and ONE-OFF), upgradation and migration of databases using the OPatch utility and fixing bugs
- Experience with Oracle Streams to replicate or migrate data from system to another
- Performance Monitoring and Tuning of Database, Application, System Global Area, I/O, Rollback segments using self-developed scripts, Oracle Enterprise Manager, Spotlight on Oracle, Toad, Explain Plan, Tkprof Utilities, RDA, statspack, AWR, ADDM
- Supported 24/7 Production databases and responsible for round-the-clock database operations. Offering solutions for Production/Development of database applications
- Leadership skills and Goal Oriented, Good Co-ordination and Co-operation with the Team and Management. Adept at learning and adaptable to complex work environment
TECHNICAL SKILLS:
RDBMS: Oracle 9i/10g/11g/12c, SQL server 2005/2008/2012, MySQL
Operating Systems: HP-UX, Sun Solaris 2.5/2.8/5.9, IBM-AIX, Linux, Windows NT/ 2000/2003/2008
Oracle DB Tools: Toad, Export, SQL*Loader, Import, Data pump, SQL developer, Streams, AWR, ADDM, RMAN, OAM, OEM
Other Tools: AUTOSYS, Net meeting, VMware Server, VVM
Hardware/Storage: EMC Clarion with RAID5, Sun Sparc E15K/E4500/420, Sun-Fire v440/v890VERITAS Net Backup, Tivoli Storage Manager (TSM)
Data Modeling Tool: ERWin 8
Languages: C, C++, SQL, PL/SQL, Shell scripting, PERL scripting
Networking: Sql *Net, TCP/IP, FTP
PROFESSIONAL EXPERIENCE:
Confidential, Santa Fe, NM
Sr. Oracle DBA
Responsibilities:
- Installation, configuring, patching of Oracle Enterprise Edition ranging from Oracle 11gR2 and 12c on various platforms
- Installation, configuration and Maintenance of the Oracle 12c RAC databases on a four node Linux environment with replication using Golden gate.
- Upgraded the test and production database s from 11gR2 to 12c
- Re-configured Enterprise Manager Grid control for Oracle 12c Database to monitor Oracle Databases
- Worked closely with end Users and Business Analysts in determining database requirements, creating and developing new databases.
- Install and setup Golden Gate between Oracle and SQL Server databases for replication.
- Coordinated technical details and action plans with subordinates and vendors for RDBMS and Application-level maintenance procedures
- Configured and maintained Oracle 11gR2 databases in multi-tier environment.
- Applying CPU patches, Oracle patches, Release upgrades, Bug fixes
- Performing database/table re-org, index rebuild tasks and structural changes to the database
- Moved the Oracle databases over different Operating System platforms
- Performance Tuning of Databases, Oracle instances, and Applications. Finding Performance bottlenecks using OEM Grid Control, AWR, ADDM, STATSPACK, ESTIMATE, ANALYSE, INDEXES
- Proficient in SQL, PL/SQL, Query/application tuning using optimizer hints, Explain Plan, SQL Trace, DBMS STATS and Auto trace.
- Monitoring, following up & working with Oracle Support in resolving issues by SR’s.
- Supported Production databases on 24/7 on call rotation
- Created duplicate databases using RMAN duplicate for monthly development and QA database refreshes.
- Delivering SQL and Database performance tuning services via V$/GV$views, TKPROF, SQL Tuning Advisor, SQL Access, Oracle Enterprise Manager (OEM), analyzing SQL trace dumps for 9i/10g/11g.
- Gathering database statistical information using STATSPACK, AWR, ADDM reports when the performance is both good and bad
- Experience with replication software’s such as Golden Gate especially in troubleshooting the replication issues.
- Patches and Maintain Oracle 11i Applications Environment.
- Performed clones of EBS instances and associated post clone activities.
- Database monitoring, Disaster recovery and backup using SQL Server technologies.
- Configured reports using SQL Server Reporting Services (SSRS).
- Monitoring SQL Server 2012 database, Performance tuning using SQL Profiler, and Index tuning.
- Configuration of Database Mirroring, Log Shipping and Replication in SQL server 2008 databases
- Created back up plans and test recovery scenarios in SQL Server
- Schema Refreshes using export/import and oracle Data pump Export (DPE) and Data Pump Import (DPI)
- Experienced in Capacity planning, capacity monitoring and management
- Databases refresh from production to UAT/DEV/Test environment for the Application/Project team using RMAN/logical backup
- Writing Shell Scripts for managing day-to-day activities, monitoring and automation of backup
- Designed and modified logical and physical data warehouse/data marts, data modeling using Dimensional Data Modeling configured for OLAP with Erwin data modeler
- Analyzed tables and indexes for Cost Based Optimizer (CBO) to work efficiently
- Involved in projects assigned and participate in Project meetings and kick-off meetings for go-live.
Environment: Oracle 12c RAC, ASM, Oracle 11g (11.2.02), SQL SERVER 2008/2012, PL/SQL, RMAN, Goldengate, OEM Grid Control, SSRS, SQL Plus, TOAD, ERWIN 8, Solaris, HP-UX, BMC Patrol, HP Service Guard
Confidential, CLEVELAND, OH
Sr. Oracle DBA
Responsibilities:
- Installation, configuration and Maintenance of Oracle 11gR2 RAC databases on a two node cluster with ASM
- Responsible for administration, supporting production and development of oracle 9i databases
- Installed the Grid Control Management agents on database servers to discover them in OEM Grid control
- Installation and configuring the physical standby databases using Active Data Guard at DR site for the operational recovery
- Monitoring SQL Server 2008 database, Performance tuning using SQL Profiler, Perform counters and Index tuning
- Develop, Implement and administer database policies and procedures
- Worked with Oracle Enterprise Manager, Net configuration assistant
- Monitored database performance using TKPROF, explain plan and sql trace
- Extensive use of CRONTAB in UNIX environment for scheduling routine tasks
- Managing tables and storage structures within a table
- Implementing and maintaining indexes, integrity constraints
- Managing passwords and resources using profiles
- Used Oracle backup utility RMAN to implement Oracle backup
- Implemented table partitioning and sub-partitioning to improve performance and data management
- Extensive knowledge on Oracle fundamentals, concepts, utilities and applications
- Experience with managing control files, redo log files, tablespaces, segments, extents and blocks
- Managing users, resources and privileges
- Monitoring of Oracle databases, automated error notification
- Ensure High Availability of database at all times and resolve all problems within targets
- Strong UNIX shell scripting abilities
- Data refresh from production to test and development, maintain Database Security
- Develop documentation to support the business and the support team
- Responsible for taking hot backups and logical backups at schema, tablespace and database level
- Performed Data load on different databases using SQL*Loader
- Used EXPORT/IMPORT to do table level and full database defragmentation
- Database capacity planning and performance tuning using AWR and other reports
- Logical and Physical Modeling using ERWIN Data Modeler
- Assisting the developers for the application performance tuning and verifying the TKPROF.
- Optimizing database performance by analyzing database objects, generating statistics, creating indexes, creating materialized views, using HINTS, Explain Plan and STATSPACK etc.
- Extensively used Cursors and Ref Cursors in order to generate various reports.
- Requirement analysis and database design
- Helped developers to install Oracle Client, troubleshoot and establish the connection to Oracle database through ODBC
- Developed future storage requirements for production database
- Tuning of SQL’s for the release changes using TOAD before implementing them into production
Environment: Oracle 11gR2 RAC, Oracle 10g, Data Guard, Linux, AIX, SQL Server 2008, SQL, PL/SQL, Shell Scripting, RMAN, DATA GUARD, TOAD, OEM, ERWIN, SQL * Loader
Confidential, F almouth, ME
Sr. Oracle DBA
Responsibilities:
- Installed, configured and maintained Oracle Databases and Clients
- Applied patches, keeping applications software bug free, and improving data integrity
- Experience in handling high availability databases.
- Consults and advises users on access to various databases
- Created user, roles and granted appropriate privileges
- Configured Enterprise Manager Grid control & DB control for Oracle 10g Database to monitor Oracle Databases
- Installed OEM Grid control agents in test and production environments
- Schema Refreshes using export/import and oracle Data pump Export (DPE) and Data Pump Import (DPI)
- Tuning the databases for optimal performance
- Implemented and configured Database Monitoring tools
- Configured Physical Standby database using Oracle DATAGUARD for Disaster recovery
- Databases refresh from production to UAT/DEV/Test environment for the Application/Project team using RMAN/logical backup
- Perform monitoring by scheduling the scripts in CRON and performance tuning
- Maintain user security on the database
- Backup of Database (Making Backup Schedules depending upon Business Strategy: Daily Backup, weekly Backup etc.)
- Recovery of Database (Recovering from Media Failure, Recovering tables dropped accidentally, Recovering data files, Recovering from Block Corruption).
- Provided Technical Guidance for database projects and configuring Oracle Clients on Workstations.
- Managing Schema Objects, Tablespaces, Datafiles, Space management, User Security
- Defragmentation of Databases which saved Lot of space for Future Application Growth.
- Co-Ordination with Application Developers on Database Issues, Including Index Design, Creation and alteration of Tables, Views, Indexes.
Environment: Oracle 10g (10.2.0.3/10.2.0.4 ), Oracle 9i (9.2.0.8), SQL, PL/SQL, RMAN, DATAPUMP, SQL Plus, Solaris, HP-UX, LINUX
Confidential, Columbus, OH
Oracle Database Administrator
Responsibilities:
- Installed and configured Oracle 10g, 9i
- Tablespaces and DataFile allocation and management
- Managing schema objects and rollback segments
- Database security such as establishing security policies
- Managing users and resources, controlling user privileges, roles and auditing database use
- Experienced in taking Hot, cold backups with and without RMAN
- Demonstrated benefits of using RMAN for backup and recovery
- Experience with Oracle RMAN and Veritas Net Backup
- Performed Logical backups at schema level using Export/Import and datapump
- Database instance tuning such as tuning memory allocation, tuning I/O, tuning contention, tuning related to sorts and free lists and check points
- Installation of Oracle 9i/8i software on various platforms like Red Hat Linux Adv
- Reorganized the database tables to improve report generation time
- Migrated databases from 9i to 10g using transportable tablespace from Solaris to RHEL 4
- Database monitoring using OEM. Application and database tuning using statspack, AWR
- Set trace session, get explain plan and run TKPROF on trace file to identify SQL problems
- Built Batch Scripts for automating the daily operations of database management.
- Improve application run time by building optimal indexes, gathering object statistics, analyze objects and using parallel query
- Database refreshes, environment configurations, and troubleshooting
- Performed several rollback to undo and dictionary to local extent management tablespace conversions
- Troubleshot database errors, warnings, and failed jobs to greatly reduce potential database downtime, and ensure database recoverability
- Supported different OLTP Databases like Production, Development, Testing, and Training
- Resolving database storage management issues
- Ran batch Scripts in Task Manager to invoke Hosts.
- Performing the logical and physical structures for tables, indexes, modeling, normalization and foreign key constraints
- Provided all kinds of DBA support to development teams as well as production support to various applications.
Environment: UNIX Sun OS 5.6/ HP UNIX 11.11, Windows NT 5.0/ 2000, Oracle9i, 10g, RMAN, OEM, Reflection, Toad, PeopleSoft 8.3, Veritas Netbackup, Dataguard, OLTP, Erwin and Designer 2000
Confidential
Jr. Oracle DBA
Responsibilities:
- Oracle Installation, patch application, migration of databases to newer releases of Oracle
- Monitored server disk space, database performance, replication, backups and scheduled tasks
- Production and Development support for an Oracle 8i database
- Created and managed an Oracle 8i database/instance and rollback segments
- Set up and administered table spaces, data files, tables, indexes, views and sequences
- Developed functions, procedures and packages using PL/SQL
- Configured and managed users, security and redo logs
- Moved all database from conventional backup to Oracle Recovery Manager (RMAN)
- Performed backup and recovery for both hot and cold backups without using RMAN
- Creating primary database objects such as tables, views, sequences, triggers, and indexes
- Daily monitoring and optimizing the performance of the database to ensure that database resource such as tablespaces, memory configuration, sessions, archive files, etc, are in their proper status
- Performing backup and recovery procedures to include exporting and importing of the database
- Performed full, tablespace and datafile recoveries with the database open and closed
- Creating user accounts and appropriate privileges as well as maintaining database security
- Enabled the Database in Archive Log Mode
- Performed backup jobs using batch scripts.
- Used Windows NT backup Program to perform backup jobs.
- Used Task Scheduler Service to schedule an automatic backup job.
- Modifying the database structure, as necessary, to support activities of application developers
- Created Database storage structures Data Tablespace, Index Tablespace
- Created/Altered/Modified database objects
- Performed Physical backup (hot and cold) as well as Logical backup (Export/Import).
- Proactively managed the databases; set up alarms for managing any exceptions in day to day management of the databases; pre-empted and prevented issues disasters from happening.
Environment: Oracle 9i, SQL, PL/SQL, Win NT 4.0/Unix, Sun Solaris, PVCS, Toad