Oracle Database Administrator L3 Resume
IL
SUMMARY
- Enterprise DBA support utilising around 8+ years of Experience in Oracle Database Administrator, providing 24X7 production and development support 11g/10g/9i/8i databases on different platforms like Confidential - UX, SUN SOLARIS, AIX, Red Hat Linux and Windows.
- Best practices for Oracle Database Infrastructure, Standards and Implementation.
- Implementation of best case scenarios for enterprise wide Database backup/recovery solution analyzing the specific business needs and optimizing the use of existing infrastructure
- Implementation of Enterprise wide Database Monitoring enabling Oracle 11g Enterprise Manager Grid Control. One stop solution for monitoring every single Oracle Database within the global enterprise
- Implement enterprise wide Database Development standards to eliminate time on Database tuning.
- Database Installation and maintenance.
- Installation of Oracle Databases 8i/9i/10g RAC/11g RAC.
- Data Guard setup with Primary and Standby Databases.
- Strong Oracle RAC Installation, Configuration and Tuning Skills on Red-Hat Linux and Sun Solaris.
- Implementation of Grid Control.
- Monitoring extract process, replicat, manager processes.
- Knowledge in OID, OVD, LDAP.
- Database Backup and Recovery using RMAN including duplicating/cloning Databases across with point-in-time recovery option.
- Configuration of RMAN Backup using VERITAS Net backup.
- Scheduling backup Jobs using Cron (UNIX) and Schedule Task (Windows).
- Monitor nightly Database backup Jobs and necessary actions for failed backup jobs including script corrections, disk space monitoring and Database availability.
- Physical database design, Logical database desin, normalization, de-normalization
- Capacity planning and bench marking
- Database security and auditing
- Setup procedure for Database statistics gathering - Frequency, Best Time of the day to execute stats gathering jobs, correct level of gathering statistics.
- Collections of performance data for specific time range using STATSPACK, AWR, ADDM, ASH, TKPROF, EXPLAIN PLAN, SQL Trace.
- Analysis of Database Wait Events.
- Troubleshooting for slow performing SQL by enabling Database tracing including session specific tracing. Performed SQL Tuning using Explain Plan.
- Plan optimization applying corrective measures including code restructuring, identifying potential index issues and effective implementation of uniform coding structure to avoid optimizer re-parsing.
- Managed extract, replicat, manager processes.
- Setup tnsnames in OVD,OID.
- Setting up Enterprise Manager notification procedures, who gets what notification, monitoring frequency, threshold limits for process memory, disk usages etc.
- Database trigger, stored procedure & packages PL/SQL coding.
- Multiple upgrades of Sun Solaris and Linux servers from 8i,9i to Oracle 10g, Oracle 10g to Oracle 11g.
- Excellent problem solving skills.
- Excellent written and verbal communication skills.
- Result oriented, self motivated, Team Player, Ability to work independently.
TECHNICAL SKILLS
Databases: Oracle 11g RAC, 10g RAC, 9i, 8i, 7.x, MS SQL Server 2005/2008
DBA: Oracle 11g, 10g, Oracle Enterprise Manager, TOAD
System Administration: Red Hat Linux, Confidential -UX, Sun-Solaris, IBM-AIX Windows 95/98/ME/NT/2003/XP
Backend Scripting: SQL*Plus, PL/Sql, UNIX Shell Script, Perl Scripting.
Network and Connectivity: Windows TCP/IP, VPN Connectivity, Oracle TNS Listener
Development Tool: Visual Studio, Visual C++, Windows/SDK, Visual Basic
Oracle Tools: RMAN, OEM/Grid Control, SQL*Loader, SQL ServerOracle Warehouse Builder, SQL*Plus, DBCA, Import/ExportData Pump, Streams, Golden Gate
Tuning Tools: TKPROF, EXPLAIN PLAN, STATSPACK, AWRADDM
PROFESSIONAL EXPERIENCE
Confidential, IL
Oracle Database Administrator L3
Responsibilities:
- 24x7 Production Database administration, support and monitoring to ensure a proactive problem recognition and resolution of Database issues
- Installations of Oracle Databases and clients.
- Supporting Oracle 11g RAC/10g RAC/9i Databases
- Responsible for upgrade and migration of data from 9i to 10g, 9i,10g to 11g and applying patches whenever required.
- Created extract initial load with setting by rmthost, mgrport, sourceistable, specialrun commands.
- Configuring an Online Extract and Replicat Group.
- Configured online change synchronization using chechpointtable command.
- Configured data pump process, ddl synchronization (marker setup, ddl setup, role setup) in golden gate.
- Installed and configured Oracle 11g RAC high availability, Standby Database 9Active DataGuard) for disaster recovery and reporting purpose.
- Installation of Oracle cluster ware, Configuring public and private network and VIP.
- Developing and Implementing Disaster Recovery (DR) Plan
- Monitoring the operating system response in terms of CPU usage, disk space, and swap space by using various UNIX utilities like SAR, VMSTAT, IOSTAT and TOP.
- Performance tuning for optimized results using tools like EXPLAIN PLAN, SQL*Trace, TKPROF, STATSPACK, AWR and ADDM reports.
- Analyze SQL statements, reorganize Database objects and design indexes to improve response of queries.
- Knowledge install, configure the LDAP central grid.
- Creating Oracle virtual Directory.
- Creating Oracle Internet Directory.
- Creating indexes, views, synonyms, materialized views
- Creating database triggers, stored procedures.
- Creating views, sequence, functions.
- Creation of Database maintenance plans, rebuild indexes and integrity checks.
- Recovery of Database (Recovering from Media Failure, Recovering tables dropped accidentally, Recovering data files, Recovering from Block Corruption).
- Cloning of production Database to the test environment using Recovery Manager (RMAN).
- Monitoring Enterprise Manager Alert Logs for taking corrective actions including table space sizing.
- Performed full and incremental backups using RMAN.
- Daily DBA activities like Tuning of SQL/PLSQL, Performance Tuning, Database and managing user groups, Database security, OS space monitoring etc.
- Export and Import of Database objects to copy from one Database to another Database as well as copy the export dump file to tape that can act as a backup.
Environment: Oracle Database Oracle 11g RAC/10g RAC/9i/8i, Sun Solaris, Confidential -UX, RHEL
Confidential, Columbus, OH
Oracle Database Administrator
Responsibilities:
- On call 24x7 production support
- Installations of Oracle Databases and clients.
- Supported different Databases like Production Development Testing UAT and Training.
- Installation and configuration of Oracle 10g RAC, Oracle 11g RAC, Standby Databases for high availability, disaster recovery and reporting purpose.
- Creating functions, procedures.
- Creating indexes, view, and sequence.
- Form creation, use of built in packages.
- Responsible for upgrade and migration of data from 9g RAC to 10g RAC.
- Cron job to monitor the replication between primary and standby every 15mins.
- Monitoring Table spaces and extent Growth.
- Configured Databases for online backups and manage the complete Database recovery.
- Cloning of production Databases to the test environment using Recovery Manager (RMAN).
- Rebuilding indexes, dropping, creating.
- Database Management - Backup, & Recovery, Performance Tuning, Configuration of Database, Table space administration, User management, Index management.
- Created Users, Roles and Managing Security & Concurrent Managers administration.
- Daily DBA activities like Tuning of SQL/PLSQL, Performance Tuning, Database auditing and managing user groups, Database security, OS space monitoring etc.
- Optimize and Tune Database /Application. Provide solutions and enhancements for existing and new environments.
- Implement new technologies and upgrade existing Databases /Applications.
- Study existing system by application areas.
- Developing and Implementing Disaster Recovery (DR) Plan
- Writing UNIX shell scripts for backup and recovery, Import and export procedures
- Experience in Identifying performance bottlenecks on high volume transaction systems.
- Configured and maintained huge OLTP and Data warehouse databases .
- Database security and auditing
- Ensure high availability of Databases at all time.
Environment: Oracle 9i/10g RAC/11g RAC, Red Hat LINUX, Solaris 10, IBM AIX, Confidential -UX, Windows 2003, MS,SQL Server 2000/2005/2008 , OEM/Grid Control, AWR/ADDM, RDBMS, SQL, PL/SQL
Confidential, Tampa, FL
Oracle Database Administrator
Responsibilities:
- 24x7 Production Database administration, support and monitoring to ensure a proactive problem recognition and resolution of Database issues
- Installations of Oracle Databases and clients.
- Supported different Databases like Production Development Testing UAT and Training.
- Creating tablespaces, tables, indexes, views, synonyms, materialized views
- Responsible for upgrade and migration of data from 9g RAC to 10g RAC.
- Migration of Database from 9i to 10g and applying patches whenever required.
- Installed and configured Oracle 10g RAC high availability
- Installation of Oracle cluster ware, Configuring public and private network and VIP.
- Developing and Implementing Disaster Recovery (DR) Plan
- Monitoring the operating system response in terms of CPU usage, disk space, and swap space by using various UNIX utilities like SAR, VMSTAT, IOSTAT and TOP.
- Performance tuning for optimized results using tools like EXPLAIN PLAN, SQL*Trace, TKPROF, STATSPACK, AWR and ADDM reports.
- Analyze SQL statements, reorganize Database objects and design indexes to improve response of queries.
- Creation of Database maintenance plans, rebuild indexes and integrity checks.
- Recovery of Database (Recovering from Media Failure, Recovering tables dropped accidentally, Recovering data files, Recovering from Block Corruption).
- Cloning of production Database to the test environment using Recovery Manager (RMAN).
- Monitoring Enterprise Manager Alert Logs for taking corrective actions including table space sizing.
- Performed full and incremental backups using RMAN.
- Daily DBA activities like Tuning of SQL/PLSQL, Performance Tuning, Database and managing user groups, Database security, OS space monitoring etc.
- Export and Import of Database objects to copy from one Database to another Database as well as copy the export dump file to tape that can act as a backup.
Environment: Oracle Database Oracle 11g RAC/10g RAC/9i/8i, Sun Solaris, Confidential -UX, RHEL
Confidential, Des-Moines, IO
Database Administrator
Responsibilities:
- 24x7 Production Database administration, support and monitoring to ensure a proactive problem recognition and resolution of Database issues
- Installations of Oracle Databases and clients.
- Supported different Databases like Production Development Testing UAT and Training.
- Installation and configuration of Oracle 10g RAC, Standby Databases for high availability, disaster recovery and reporting purpose.
- Intensively involved in the area of installations of Oracle Software, Configuration for Database and day-to-day routine works for database administration.
- Identify each object with sizing criteria including large, medium and small.
- Sizing estimations and create appropriate table spaces.
- Create Import/Export scripts. dentify potential failures of Export/Import Jobs and resolution of the problem including resizing the table spaces.
- Developed PL/SQL programs (Functions, Procedures, Packages and Triggers).
- Create Database users and roles and implement appropriate user security.
- Fixing Printer Issues, Setting Profile Options, Creating &Assigning Responsibilities.
- Implemented Database auditing, data security and Remediate high-risk violation in production environment.
Environment: Oracle 10g RAC/9i/8i/8.x.x, AIX, SUN SOLARIS, Confidential -UX, OEM
Confidential
Database Administrator
Responsibilities:
- Installation, configuration and upgrading of Oracle server software, related products and applying the patches for database.
- Implemented the Database tuning to improve the performance of the database using the Prestart package.
- Highly experienced in troubleshooting problem queries that take long.
- Application tuning using Hints, Explain Plan, SQL trace, TKPROF using SQL Navigator Expert Tuning, Index Tuning utility.
- Created and maintained a remote copy of the Production Database, using Standby Database to protect data against hardware failures.
- In order to protect data in the Production Database, implemented Standby Database and Synchronization of Standby Database with the primary database.
- Monitored and allocated share memory, table space as needed and managed replicated servers.
- Monitored backups, space usage, and user activity on daily basis and Performed daily hot backups and weekly Cold backups using RMAN.
- Altered, modified, Partitioned, dropped, created Database objects daily on a 24 X 7 production, Development, testing environments using TOAD and OEM.
- Implemented multiplexing of control files and redo-logs for disaster recovery scenario.
Environment: Oracle 8i/9i, AIX, SUN Solaris, SQL Server 2000, PL/SQL, UNIX Shell Scripting, RMAN, Toad, on Confidential -UX, Sun Solaris 2.x.
Confidential
Oracle Developer/DBA
Responsibilities:
- Responsible for implementing and maintaining the system.
- Health Check of the Database and Performing Database backup as per schedule.
- Shell Scripting, Automation of clonig and backup
- PL/SQL programming, writing Packages, Procedures, Functions and Triggers.
- Space management, adding space to Database as per requirement.
- Taking backups
- Database monitoring
- Creating users, roles, granting privileges
- Creating tablespaces, tables, indexes, views, synonyms, materialized views
- Performance monitoring and tuning
Environment: Oracle 8i/9i, Sun Solaris, SQL Server 2000, PL/SQL, UNIX Shell Scripting