Sr. Database Administrator Resume
Wilmington, DelawarE
SUMMARY
- 17 Years of experience in the field of information technology. Predominantly associated with Oracle Database Administration
- Strong expertise in administration of Oracle databases with 24×7 database availability, Data Guard, RAC. Worked on various client facing critical databases as Oracle Primary DBA. Size of databases range up to 10TB.
- Strong expertise in performance tuning & troubleshooting, SQL /UNIX shell scripting, database tuning Confidential various stages, backup & recovery, advanced replications, materialized views, transportable table spaces.
- Good experience in Database Administration along with Database Maintenance, User managed Backup / Recovery and RMAN backup recovery, Performance Tuning in SQL, Application and Database
- Strong Experience in SQL, PL/SQL and UNIX Shell Scripting
- Strong Exposure on High Availability Concepts (Data Guard, Standby) and Database Cloning
- Good Experience in Database installation and Upgrades (9i,10g,11g) and Patching
- Strong programming experience in creating Packages, Stored Procedures, Stored Functions, Database Triggers
- Good Knowledge on Oracle Collaboration Suite Administration includes Oracle Web Conferencing, Email, Content
- Hands on experience on RAC database.
- Good Experience on New Environments setups includes 8i,9i,10g,11G Databases Installations and Middleware Installations
- Excellent communication skills. Exceptional ability to interact with users and all levels of management
- Extensive experience in database design, and distributed database systems.
TECHNICAL SKILLS
Operating System: Solaris 10/9/8/2.7/2.6 ; Red Hat Linux EL 4.0, Compaq Tru64 UNIX 5.1/5.1a/4.0, IBM AIX 4.3.2/4.3.3 , Windows XP, NT / 2000; SCO Open Server; HP UX 11.00 / 10.20 ; Su SE Linux, Veritas Clusters, VERITAS NetBackup 4.5/5.0/6.5/7
Databases/ Warehouse: RAC, OLAP, OLTP, Data warehousingData Mining, Oracle 32/64 - bit 10g/9i/ 8i/8.0/7.X
Oracle Tools/Utilities: RMAN, EXP/IMP, SQL * LoaderDBVERIFY, TKPROF and STATSPACKAutomatic Workload Repository, ADDMOracle Enterprise Manager(OEM) Grid ControlOracle Directory Manager, Oracle Data guard
Languages: SQL, PL/SQL, Java and UNIX Shell
GUI: Java and Visual Basic
Others/Tools: Toad, Sql Navigator, Quest Spotlight, Attachmate/Reflection X
PROFESSIONAL EXPERIENCE
Confidential, Wilmington, Delaware
Sr. Database Administrator
Environment: Oracle11G,10g,9i Linux, Sun Solaris UNIX, AIX, Oracle RAC on 11gR2,, PL/SQL
Responsibilities:
- Managing Oracle 11g databases which are having maximum size of more than 40TB
- Application, SQL, and database instance tuning using a wide range of technologies including ADDM, AWR, Stats pack, extended SQL trace (event 10046 trace files), CBO analysis (event 10053 trace files), OEM Performance Manager, and custom scripts.
- Managing RAC four node Oracle 11gR2 environments on Linux platform.
- Oracle database migration from Oracle 10g to Oracle 11g
- Table space point in recovery using RMAN and user managed scripts
- Convert Non ASM file system to ASM and vice versa
Confidential, New Jersey
Lead Database Administrator
Environment: Oracle11G,10g,9i,8i Linux, Sun Solaris UNIX, AIX,PL/SQL
Responsibilities:
- Database Installations and Upgrades (8i and 9i to 10g, 10.1.0.2patchset to 10.1.0.4 Patchset, 10.1.0.4patchset to 10.1.0.4.2 /10.1.0.5 patchset and 10.1.0.4.2 patchset to 10.2.0.0patchset Oracle 9i,10G to 11g)
- Handling Critical, Emergency Issues in All Production Environments and On Call Support over the weekend
- Defining the project, analyzing the risk, working with project manager to prepare the project plan.
- Identifying the issues and working with the team to find solutions.
- Attending weekly meeting with the team to discuss the issues.
- Attending weekly meeting project manager and manager to assess the progress
- Critical Patch Update on all Oracle Collaboration Suite Components in every quarter
- Capacity Planning for all the Production and Stage Servers (Performance Analysis, Storage Growth and Automatic Storage Management and Grid Implementation)
- Gather Database and User Level Statistics and Analyze Overall System Performance
- New Production/Development/Test Environment Setups (Cluster and Non-Cluster)
- Handling Oracle 8/8i/9i/10g/11g software installation and database creation for production, development and test environment
- Applying Database patches
- SQL/Database Instance Tuning by running STATSPACK and AWR/ADDM reports and analyzing, recommend any changes
- RMAN Database Backup/Recovery - Monitoring hot backups and Monitoring Archivelog Destinations
- Managing Data Guard and Standby Setups in high availability mode.
- Table space Management, objects creation, and user management
- Implements and provides direction for all Oracle advanced security related initiatives, vulnerabilities etc. Conduct periodic SOX review and remediate deficiency uncovered during the review.
- Hands on experience on database replication using Shareplex replication technology from quest .Managed Shareplex for keeping databases for real time synching.
- Replication Setups, Configurations and Data migrations
- Creating Pl/Sql Packages, Stored Procedures, Stored Functions, Database Triggers .
- Users Integration Checking, Adding users, Modifying Users attributes, Deleting Users, Indexing Attributes in LDAP Environments
- Shell Scripting for monitoring System Synchronization, Database growth size, monitoring free space availability Confidential Database level and Confidential Disk Level, Backups, Performance and Log rotations
- Working with UNIX team for supporting/maintaining existing systems. Also for new systems in order to configure servers for Oracle software and databases. Used systems range from standalone Solaris/Linux server, Highly Available symmetric VCS clusters, Highly Available asymmetric VCS clusters and RAC ready clusters using Veritas.
- Managing ASM instances on RAW files system environment
- Managing mission critical applications on RAC environment keeping the entire alert monitoring up to date.
Confidential, NJ
Sr. DBA /Team Lead
Environment: Oracle 9i, 10g, LINUX, UNIX (Sun Solaris), PL/SQL
Responsibilities:
- Provide CORE DBA support for Confidential applications
- Work within the production support team and maintain operational consistency and efficiency
- Provide input to the Project and Enhancement teams to define database storage structures (tablespaces) after application developers have designed an application
- Implementation of reviewed changes to the production databases
- Provide primary DBA support to Production /Development and Test Applications.
- Provide application DBA skills to identify and focus on strategic opportunities
- Creating primary objects (tables, views, indexes, snapshots, database links, etc) once application developers have designed an application
- Modifying the database structure as necessary, from information given by application developers
- Maintain system security
- Handling Oracle 8/8i/9i/10g/11g software installation and database creation for production, development and test environment
- Controlling and monitoring user access to the database
- Monitor and optimize the performance of the database
- Maintaining archived data
- Collaborate with Enhancement and Production support teams to verify all instances are healthy and up
- Monitor new alert log entries for any issues (ex. ORA-600 errors, frequency of log switches and archiving status)
- Verify success of database backup and archiving
- Verify enough resources for acceptable performance
- Monitoring objects validity and Usage
- Analyzing database objects and Generate statistics periodically
- Monitoring security policy violations
- Look for harmful growth rates
- Review tuning opportunities
- Partitioned tables across hard disks and built proper indexes
- Tune SQL, I/O, Application and Database
- Review Data Fragmentation
- Development/Test Instances Creation and manage thereafter.
- Refresh Databases and Schemas with Production Database
- Migrating data from development data to Stage and then Stage to production
Confidential
Sr. DBA
Environment: Oracle 8i/9i, Linux, Unix, PL/SQL, SQL Loader, Oracle Forms, Oracle Report
Responsibilities:
- Responsible for Oracle7/8i/9i logical and physical databases design, implementation and maintenance on UNIX and NT
- Handling Oracle 8/8i/9i/10g/11g software installation and database creation for production, development and test environment
- Creating Users and Maintaining Security of the Database
- Moved database Schema changes to stage or production
- Developed some Unix Shell scripts to automate database operation and database monitoring
- Implemented database refresh with the hot backup using DUPLICATE or full export
- Used EXPORT/IMPORT to do table level and full database defragmentation
- Provided on-call production database support
- Creating Indexes and Monitoring Performance
- Data loading using SQL Loader (from Text files to Database)
- Perform Daily Logical backups using exp
- Perform RMAN operations (Level 0 and Level 1 Backups)
- Coding PL/SQL, SQL and Unix Scripts
- Server and Clients Installations for New Clients
- Helped developer to install Oracle Client, troubleshoot and establish the connection to Oracle database through ODBC, JDBC
- Performed SQL Tuning by using explain plan and TKPROF
- Daily Monitoring Database and Tablespaces Growth and Monitoring Space Availability Confidential Operating System
- Trained a new DBA in our environment
Confidential
PL/Sql Developer, Junior DBA
Environment: Pl/Sql, Oracle 7 and 8i Unix, and Windows.
Responsibilities:
- Database Design and Creation of Database Objects and Creating Users and Maintaining Security for various Teams
- Coding and Testing
- Perform Periodic Database Backups
- Database and Application Maintenance