Oracle Database Administrator Resume
Richardson, TX
SUMMARY
- Confidential is a highly motivated result - driven certified Oracle 10g DBA professional with 8.9 years of experience in Oracle database (8i, 9i, 10g,11g) installation, administration, performance tuning, backup and recovery especially on Linux platform.
- In addition she has proven ability of providing production support for 24x7 on multiple databases.
- She possesses excellent analytical, problem solving, communication and interpersonal skills. Details of her skills -
- Extensive Experience in Oracle 9i/10g/11g Architecture, RMAN backups, Crash Recovery, Optimization, Performance Tuning, Troubleshooting.
- Experienced in installing Oracle patches, Migrating database across releases.
- Diverse industry experience including Banking and Finance.
- Designed and developed plans to achieve high availability, scalability, recoverability of the Oracle RDBMS servers.
- Responsible for upgrading databases to Oracle 11g.
- Expert in Database Administration, Performance Tuning.
- Hands on experience of managing Very Large Databases (VLDB) in the range of 500 GB to 1 TB.
- Implemented FLASHBACK technology. Experienced on various flashback technology features introduced in Oracle Database 10g.
- Extensive experience in designing databases using Erwin tool.
- Setup and configure oracle 9i/10g database (OLTP) for development and staging environment.
- Extensive experience on Automatic Workload Repository and Automatic Database Diagnostic Monitor (ADDM) in Oracle 10g (10.1.0.2).
- Involved in upgrading the database servers to 10g in OLTP environment.
- Created Partition Table (List, Range, and Hash) to improve query performance.
- Expert in Oracle Database 10g (10.2) Real Application Cluster implementation with ASM and Cluster Management.
- Setup and configured Oracle Data Guard using a physical standby database
- Extensive experience with DATA PUMP feature of Oracle 10g to transfer the data amongst databases.
- Generated Materialized views to cache data that was frequently needed, to improve performance.
- Excellent experience working with FTP, SCP using SSH protocol.
TECHNICAL SKILLS
RDBMS: Oracle 8.1.7, Oracle Database 9i, Oracle Database 10g(10.2.0.4),Oracle Database 11g(11.1.0.7)
Tools: Erwin 4.1.4,Toad, Putty, Oracle 9i/10g Oracle Enterprise Manager, Database Configuration Assistant,Net configuration assistant
Operating Systems: Red Hat Linux 3.1, Red Hat Linux 2.1,AIX 5.3, HP-UX 11.11,Solaris 10,Windows XP Professional, Windows 2003 Professional.
TrainingS: Oracle 9i Database Administrator Professional
PROFESSIONAL EXPERIENCE
Confidential, Richardson, TX
Oracle Database Administrator
Responsibilities:
- Refresh the non - production environment from production databases using oracle utilities like data pump, export/import over the network link so as to facilitate Application team with test environment .
- Implement nightly production changes.
- Replicate the data amongst three databases using materialized views.
- Release monthly reports on user management and resource usage of production hosts to the appropriate teams.
- Implemented Oracle Streams.
Environment: Oracle Database 11g(11.1.0.7), Oracle Database 10g(10.2.0.4), AIX 5.3, Solaris 10
Confidential, Lincoln, RI
Oracle Database Administrator
Responsibilities:
- Involved in the Installation, Database design, Administration, implementation, customization & system support on AIX 5.3.
- Used Expdp, Impdp utility to transfer the data between databases.
- Involved in applying CPU patches and project specific patching on databases.
- Database export/import, hot backup and cold backup setup and evaluating the backup and recovery procedure periodically.
- Defragmentation of tables and indexes for improved performance and efficiency.
- Creation and maintenance of table spaces and data objects.
- Creation and maintenance of control files, redo log files and data files.
- Monitoring alert log/system log.
- Carried out the setting up of RMAN back up schedules of databases.
Environment: Oracle Database 11g(11.1.0.7), Oracle Database 10g(10.2.0.4), AIX 5.3, Solaris 10
Confidential, Cranston, RI
Oracle Database Administrator
Responsibilities:
- Involved in the Installation, Database design, Administration, implementation, customization & system support on Solaris 10.
- Used Expdp, Impdp utility to transfer the data between databases.
- Implemented 2 node Oracle 10g RAC on RHEL 4.0. Performed various tasks like Administering RAC using SRVCTL
- Adding nodes and instances, Administering Storage Components, Parameter Management, Configuring High Availability Features for RAC.
- Responsible for maintaining Oracle 10.2.0.4 using SRVCTL, Oracle Enterprise Manager, maintaining Oracle Clusterware using CRSCTL.
- Responsible for upgrading databases to Oracle 11g(11.1.0.7).
- Creating Logical Data Model and Physical Data Model in order to knock out the design phase using ERwin.
- Providing mapping document from source files to target tables (implemented in the database) to the Ab Initio and Cognos Reporting team.
- Tuned frequently used Oracle SQL Statements and PL/SQL blocks using Oracle Enterprise Manager, TKPROF and Explain Plan.
- Database export/import, hot backup and cold backup setup and evaluating the backup and recovery procedure periodically.
- Defragmentation of tables and indexes for improved performance and efficiency.
- Creation and maintenance of table spaces and data objects.
- Creation and maintenance of control files, redo log files and data files.
- Monitoring alert log/system log.
- Carried out the setting up of RMAN back up schedules of databases.
Environment: Oracle Database 9i(9.2.0.8), Oracle Database 10g(10.2.0.4), Oracle Database 11g(11.1.0.7),HP-UX 11.11,AIX 5.3, Solaris 10
Confidential, Columbus, OH
Oracle Database Administrator
Responsibilities:
- Involved in the Installation, Database design, Administration, implementation, customization & system support on Solaris 10.
- Used Expdp, Impdp utility to transfer the data between databases.
- Implemented 2 node Oracle 10g RAC on RHEL 4.0. Performed various tasks like Administering RAC using SRVCTL
- Adding nodes and instances, Administering Storage Components, Parameter Management, Configuring High Availability Features for RAC.
- Responsible for maintaining Oracle 10.2.0.4 using SRVCTL, Oracle Enterprise Manager, maintaining Oracle Clusterware using CRSCTL.
- Responsible for upgrading databases to Oracle 11g.
- Tuned frequently used Oracle SQL Statements and PL/SQL blocks using Oracle Enterprise Manager, TKPROF and Explain Plan.
- Database export/import, hot backup and cold backup setup and evaluating the backup and recovery procedure periodically.
- Creating Logical Data Model and Physical Data Model in order to knock out the design phase using Erwin.
- Providing mapping document from source files to target tables (implemented in the database) to the Ab Initio and Cognos Reporting team.
- Defragmentation of tables and indexes for improved performance and efficiency.
- Creation and maintenance of table spaces, rollback segments and data objects.
- Creation and maintenance of control files, redo log files and data files.
- Monitoring alert log/system log.
- Provided production support for 24X7 database availability for VLDB(very large databases) of more than a terabyte size.
- Carried out the setting up of RMAN back up schedules of databases.
Environment: Oracle Database 9i(9.2.0.8), Oracle Database 10g(10.2.0.4), HP-UX 11.11,, Solaris 10
Confidential, Blue Ash, OH
Database Administrator/Data Modeler
Responsibilities:
- Involved in the Installation, Database design, Administration, implementation, customization & system support.
- Involved in the normalization of the Data Models for the application.
- Hands on experience in writing & debugging Stored Procedures and triggers, Troubleshooting database issues.
- Experienced in Creating Databases based on Functional Requirements and System Design.
- Installed Data Guard Primary and Standby database on 10g .
- Experience in assisting the Application Developers in creating conceptual database designs that meet the business and technical objectives of various projects.
- Experience in Code Optimization and Improving Efficiency in databases including Re-indexing, Updating Statistics, Recompiling Stored Procedures and performing other maintenance tasks.
- Responsible to schedule backups through RMAN.
- Tuned frequently used Oracle SQL Statements and PL/SQL blocks using TKPROF and Explain Plan.
- Responsible for maintaining Oracle 10.2.0.4 using SRVCTL, Oracle Enterprise Manager, maintaining Oracle Clusterware using CRSCTL.
- Used Expdp, Impdp utility to transfer the data between databases.
- Creating Logical Data Model and Physical Data Model in order to knock out the design phase.
- Providing mapping document from source files to target tables (implemented in the database) to the Ab Initio and Cognos Reporting team.
- Responsible for writing Shell scrips for Backup operations of the database.
- Responsible for generating and providing DDLs to DBA for all the objects in data model that need to be implemented in the database.
- Extensively used SQL Queries (Sub queries, correlated sub queries and Join conditions) to handle data mapping.
- Comparing Data Model and database.
- Experience with reverse engineering technique to develop model from existing database.
- Hands on experience on the Modelmart feature of Erwin 4 tool.
- Generate Erwin 4 reports in different formats like .html, .rtf, .txt.
- Comparing different versions of the data model in Erwin 4.
Environment: Oracle Database 10g(10.1.0.2),Red Hat Linux 4, HP-UX 11.11,Erwin 4.1.4, Teradata 7.1, Windows XP Professional, Windows 2003 Professional.
Confidential
Oracle DBA
Responsibilities:
- Implemented Oracle 10g (10.1.3.0.0 ) Application Server.
- Implemented 2 node Oracle 10g RAC on RHEL 4.0. Performed various tasks like Administering RAC using SRVCTL
- Adding nodes and instances, Administering Storage Components, Parameter Management, Configuring High Availability Features for RAC.
- Carried out the setting up of RMAN back up schedules of databases.
- Responsible for maintaining Oracle 10.1.0.2 using SRVCTL, Oracle Enterprise Manager, maintaining Oracle Clusterware using CRSCTL.
- Writing SQL* Loader control files and PL/SQL Procedures.
- Database export/import, hot backup and cold backup setup and evaluating the backup and recovery procedure periodically.
- Back up and Archiving Strategy of Solution have been given to spell out Confidential each location
- Primary DBA support for establishing, upgrading and maintaining OLTP Oracle database environment
- Defragmentation of tables and indexes for improved performance and efficiency.
- Creation and maintenance of table spaces, rollback segments and data objects.
- Creation and maintenance of control files, redo log files and data files.
- Monitoring alert log/system log.
- Provided production support for 24X7 database availability.
- Formulated & implemented best practice guidelines for Oracle Database.
Environment: Oracle Database 10g RAC (10.1.0.2), Oracle 10g Application Server, Oracle Enterprise Manager (9i,10g), Oracle Sql *Plus, Oracle 9i Net configuration Assistant, Oracle Application Server 10g, HP-UX 11.11.
Confidential
Oracle Applications DBA
Responsibilities:
- Responsible for writing shell scripts to monitor Hard Disk and Database space regularly.
- Responsible for writing shell scripts for Backup and Recovery, processes/listener/oracle alerts monitoring
- Taking Database Hot & Cold backup and adopting appropriate recovery procedures
- Oracle Application 11.5.8 Installation and configuration ·
- Solving technical issues related to Application and database including patch management and dealing with Oracle Support for many production and test/development databases.
- Cloning the Test & Dev instance with PROD database.
- Configuring backup strategy through RMAN.
- Perform upgrades via family packs, patch sets of Apps 11i Financial & Manufacturing modules, new releases every three months incorporating new functionalities and patches to upgrade Applications
- Work with End Users and Functional Analysts on issue resolution (concurrent manager problems, one off patches, code movements)
- Identifying and developing UNIX and sql scripts for the smooth functioning of database and applications related issues.
- Creating and maintaining documentation for the various existing processes.
- Managing Concurrent Managers ·
- Worked on "ad" utilities · Printer Configuration ·
- User Access Administration
Environment: Oracle Applications 11.5.8, Toad, Putty, Red Hat Linux 2.1,Oracle database 8.1.7
Confidential
Oracle DBA
Responsibilities:
- Designing, creating, operating, maintaining and troubleshooting of Oracle databases
- Responsible for maintaining Oracle 10.1.0.2 using SRVCTL, Oracle Enterprise Manager, maintaining Oracle Clusterware using CRSCTL.
- Implemented FLASHBACK technology. Experienced on various flashback technology features introduced in Oracle Database 10g.
- Extensive experience on Automatic Workload Repository feature of Oracle Database 10g.
- Writing SQL* Loader control files and PL/SQL Procedures
- Backup and recovery utilizing RMAN.
- Implemented materialized views.
- Setup standby database via Data Guard for database disaster recovery
- Created and managed both system level and object level roles and privileges for various users. Killing sessions and revoking user privileges and roles.
- Responsible for optimizing data access and performance by tuning indexes and Oracle performance tuner/optimizer tools like Explain Plan, stats pack, Sql Trace.
- Defragmentation of tables and indexes for improved performance and efficiency..
- Creation and maintenance of table spaces, rollback segments and data objects.
- Creation and maintenance of control files, redo log files and data files.
- Worked on Oracle 9i OEM for regular database management.
- Monitoring alert log/system log.
- Detecting and correcting instance performance problems. Locating and tuning SQL statements.
- Tuning SGA, Rollback segments, Latch contention Issues, Optimize Sort Operation
- Perform extensive testing on new versions of database products and tools to identify and resolve migration issues before these products are installed in the production environment
Environment: Oracle 10g(10.1.0.2) Oracle Enterprise Manager, Oracle Sql *Plus, Net configuration Assistant, PL/SQL Developer, Red Hat Linux 3.1
Confidential
Oracle DBA/Oracle Developer
Responsibilities:
- Responsible for designing, creating, operating, maintaining and troubleshooting of Oracle databases.
- Worked with SQL* Loader control files and PL/SQL Procedures.
- Implemented Database export/import, hot backup and cold backup setup for all the clients.
- Discoursed the tips on evaluating the backup and recovery procedure periodically.
- Back up and Archiving Strategy of Solution have been given to spell out to each client.
- Capacity planning and storage management.
- Defragmentation of tables and indexes for improve performance and efficiency..
- Creation and maintenance of table spaces, rollback segments and data objects.
- Creation and maintenance of control files, redo log files and data files.
- Monitoring alert log/system log.
- Oracle installation, creation of database, which includes physical and logical design.
- Assisted developers in Creating stored procedures, Triggers, Functions, Cursors and Packages.
- Responsible for monitoring and resizing Oracle database objects (Table spaces, Tables, Indexes etc,).
- Responsible for memory and Application tuning of the database.
- Oracle utilities like OEM, GRID SQL Trace, TK Prof and Explain Plan,
Environment: Oracle 8i(8.1.7), Oracle 9i(9.0.2),Oracle Enterprise Manager, Oracle 9i SQL *Plus, Oracle 9i Net configuration Assistant, Oracle 9i PL/SQL Developer, SQL Server 7.1,Red Hat Linux 3.1