Oracle Dba Resume
Alpharetta, GA
SUMMARY
- A highly dependable Oracle Certified professional with more than 8 years of IT experience as an Oracle Database Administrator in heterogeneous environments including Sun Solaris, Linux, HP - UX, AIX, UNIX and Windows.
- Extensive experience with Oracle database administration activities including Designing, Installation, Migration, backup & disaster recovery of databases, Tuning and Troubleshooting of database issues
- Experience with the Software Development Life Cycle (SDLC) process - performing detailed analysis, collecting requirements, documenting requirements, coding and unit testing, integration and system testing, performance tuning
- Hands on experience with Oracle utilities including Oracle Data pump
- Writing UNIX Shell Programming.
- Experience writing functions, triggers, stored procedures and PL/SQL packages to provide database access and manipulation functionality
- Experience with implementing database security features like auditing, profiles, users security, roles and privileges.
- Experience with Oracle 11g Active Cloning using RMAN.
- Worked with profile setup and maintaining the concurrent programs using Oracle Apps E-Business Suite tool.
- Experience in managing RAC clustered databases on ASM.
- Expertise in creating (Manual & DBCA) the databases and configuring them to get the best throughput
- Experience with table and index partitioning using various methods.
- Experience with tablespace and space management.
- Solid experience with routine maintenance of Oracle databases including gathering stats and Monitoring the databases using OEM
- Solid experience with Oracle Backup utility Recovery Manager(RMAN)
- Experienced in upgrading databases and applying patches.
- Experience with loading bulk data with SQL*Loader.
- Experience working with schema, table and database refreshes.
- Experienced with latest Oracle 10g features including Flashback and ASM
- Data Analysis to support Management Decision Making and Planning
- Creative problem solving skills in both strategic and tactical areas
TECHNICAL SKILLS
RDBMS: Oracle 8i/9i/10g/11g, SQL Server 2000/ 2005, MS Access
Oracle Tools: SQL*PLUS, SQL*Loader, Export/Import, Datapump, Oracle Enterprise Manager, TKPROF, Log Miner, and RMAN
Technologies: EXPLAIN PLAN, Data Guard, Grid Control, Data Streams, Flashback and AWR / STATSPACK
Languages: SQL, PL/SQL, C, C++, J2EE, VB.Net, Shell Scripting
OS: HP-UX, AIX, Linux, UNIX, DOS, and Windows
Web Technologies: HTML, XHTML, XML, CSS, Dream Weaver, Photoshop, HTML.
Other Tools: MS Office, Shareplex, Toad, Erwin data modeler and Visual studio
PROFESSIONAL EXPERIENCE
Confidential, Alpharetta,GA
Oracle DBA
Responsibilities:
- 24*7 On-Call production support and monitor of critical banking and insurance applications.
- Schema refresh from production to the non-production environments using Oracle datapump
- Table refresh from production to the non-production environments using Oracle datapump
- Cloning of production database using Oracle Active Cloning 11g.
- Converting non-partitioned tables to the partitioned tables in Oracle 11G.
- Created New Users, Profiles and managed Roles and Privileges.
- Planned and Implemented appropriate backup and recovery strategies for the database.
- Recruited, Interviewed, hired, trained and managed the team to successful completion of project goals and objectives.
- Exporting and importing of very large sized databases.
- Resolving the tablespace issues when reaches the threshold.
- Resolving the issue when the filesystem is getting full.
- Experience with pl/sql functions, stored procedures, packages, triggers, synonyms and sequences.
- Installed, configured, maintained Oracle Database Software 11g/10g on Sun Solaris, AIX and linux platforms.
- Using OEM Grid control, AWR and ADDM for performance monitoring.
- Adding / deleting / truncating partitions. Backing up partitions.
- Upgraded and migrated databases from Oracle 10g (Sun Solaris) to Oracle 11g (AIX).
- As a production Support DBA troubleshooted and resolved several types of production issues during the off hours and over the weekends.
- Periodic Database CLONING from production to Development and QA environments
- Creating, Maintaining and Supporting Physical standby databases.
- Handling issues related to Database Upgrade/Migrate and Patching.
- Adding and dropping partitions.
- Resolving issues with the gap between the primary and the standby dataguard.
- Creating shell scripts, SQL scripts for task automation.
- Converting a single instance to a RAC node in Oracle 11g.
- Worked with RMAN Backup, Restore and Recovery.
- Analyzing, consolidating and tuning database for optimal efficiency.
- Implemented Database Security Features.
Environment: Oracle 11g/10g, Solaris, AIX, Linux, SQL-PL/SQL, Shell Scripts
Confidential, Warren,NJ
Oracle DBA
Responsibilities:
- Performed On-Call Production Support (24X7).
- Installed, configured, maintained Oracle Database Software 9i/10g on SUN Solaris Sparc, IBM-AIX, HP-UX.
- Installed, configured, maintained Oracle Database Software 11g on Linux.
- Creating new databases in various environments.
- Experience with tablespace management.
- Taking backups and performing recoveries.
- Involved in installing and setting up the Grid Control and Intelligent Agents
- Installation of Oracle 11g databases.
- Involved in setting up disaster recovery sites using Data Guard technology
- Resolving performance issues using Oracle utilities including EXPLAIN PLAN, TKPROF, SQL Trace and AWR
- Experience with upgrading from 10g to 11g databases.
- Setting up alerts in OEM.
- Creating dblinks and symbollic links.
- Working with Development in resolving Bugs with Oracle 9i/10g/11g.
- Used block corruption methods in order to check for the validity of the blocks.
- Recovered the table using flashback feature.
- Perform Space Management & Troubleshooting the database issues.
- Creating Oracle materialized views.
- Worked on PL/SQL stored procedures, functions, packages and triggers.
- Upgraded databases from 10g to 11g, 9i to 10g
- Worked with RMAN Backup, Restore and Recovery.
- Monitoring of more than 100 Oracle Databases through OEM Grid control.
- Creating documentation and uploading them in sharepoint.
- Re-organizing indexes.
- Created materialized views for better performance.
- Monitoring the databases through OEM.
- Applied CPU patches.
- Installed 4 node RAC and managed the RAC clustered databases on ASM storage device.
- Used Shell Scripts to automate database operation and schedule batch jobs using CRONTAB
Environment: Oracle 11g/10g/9i, Linux, Windows, SQL Server, Toad, OEM
Confidential, Palo Alto, CA
Oracle DBA
Responsibilities:
- 24*7 on call production support.
- Installation, Configuration, Designing and Maintaining of Oracle 10g on AIX 5.3
- Ministering the databases in both Production and Development environments
- Providing roles and responsibilities to various users, developers and business analysts.
- Implementing range, list partitions, hash partitions.
- Performing export/ import of different database Objects/Schemas using Oracle Datapump utility
- Performed Blockout using OEM.
- Created and maintained different database structures including tablespaces, data files, redo log files, rollback segments and renaming/relocating of datafiles on different servers
- Database upgrade from 9i to 10g.
- Applied security patches from metalink.
- Setup backup and recovery procedures using RMAN.
- Experience with Microsoft SQL Server 2005.
- Installed RAC on Oracle 10g and worked on ASM feature of Oracle and managed disk groups.
- Upgraded Oracle databases from 9i to 10g.
- Experience working with E-Business Suite.
- Managed users, privileges, profiles, schemas using Grid Control of Oracle Enterprise Manager (OEM).
- Creating and refreshing materialized views.
- Configuring and troubleshooting RMAN backup & recovery issues.
- Implemented the Oracle Physical Data Guard in Maximum performance mode for production system in case of disaster recovery, maintain primary and standby databases.
- Set up profiles, starting and stopping concurrent managers and programs.
- Configuring and troubleshooting RMAN backup & recovery issues.
- Implementing single and composite partitions.
- Extensively used Oracle utilities -Export, Import, data pump and Sql loader.
- Performed Database and SQL tuning by using various Tools like STATSPACK, AWR, TKPROF, Explain Plan and optimizer hints.
- Performing the OS level tuning and SQL tuning.
- Created and maintained bigfile tablespaces.
- Responsible for fixing human/application errors using flashback technology.
- Applied patches using Opatch.
Environment: Oracle 9i/10g/11g, Linux and Toad
Confidential, Pittsburg,PA
Oracle DBA
Responsibilities:
- Provided 24X7 support for production problems
- Performing the daily checking routines by monitoring the Alert log, trace files of the database.
- Creating tablespaces, tables, views, scripts for automatic operations of the database activities.
- Taking hot/cold backups
- Creating users and assigned required permissions through roles
- Installed 9i, 10g applied patches in various environments and upgraded databases from 9i to 10g.
- Used Toad to run SQL and PL/SQL code to manipulate the databases in all environments
- Used gzip and gunzip to compress and uncompress very large files.
- Installing and maintaining Oracle database according to security baseline.
- Performed Database and SQL tuning by using various Tools like STATSPACK, TKPROF, EXPLAIN PLAN, optimizer hints and SQL tuning advisor.
- Designed logical databases and implemented physical databases.
- Analyzed tables and re-builded indexes regularly.
- Developed/customized UNIX shell scripts to automate routine DBA tasks.
- Performed maintenance tasks on existing test and production environments that included modifying database sizes and migrating changes through various environments.
- Audited database for statements, privileges, and schema objects.
- Truncating audited tables frequently.
- Monitoring of data guard in the production environment
- Debugging the bugs in SQL using toad and troubleshooting end users problems.
- Monitoring the auditing tables.
- Monitoring RMAN jobs and events by using OEM.
- Creating users and Creating Roles, and assigning roles, privileges and profiles to users.
- Monitoring the Tablespace Usage and Indexes usage regularly.
- Export and Import of schemas using conventional export/import.
- Utilized Oracle Enterprise Manager (OEM) to manage users, privileges, profiles, schemas.
- Performed DBA Maintenance tasks in the form of adding datafiles to tablespaces, resizing the datafiles, increasing the size of redo log files and reorganising the data.
- Used unix level powerful commands such as top, sar, vmstat, iostat.
- Utilized SQL*loader and data pump import to load data into tables.
- Executed shell script files in the background by using nohup command.
- Maintained UAT/PERF/TEST and PROD environments.
- Experience using vi commands.
- Used CRONTAB to automate database operations and schedule batch jobs.
Environment: Shell Scripting, OEM, HP-UX, Oracle 9i
Confidential, Dallas, TX
Oracle DBA
Responsibilities:
- Assigning roles and responsibilities to the developers, testers and business analysts.
- Storage and space management including tablespaces and datafiles.
- Executing sql, pl/sql and shell scripts as per the user's requests.
- Storage management, sizing the database objects, monitoring Disk usage.
- Monitoring the Tablespace Usage and Indexes usage regularly.
- Creating users and Creating Roles, and assigning roles, privileges and profiles to users.
- Monitoring the alert logs and trace files regularly.
- Creating Indexes and Monitoring Performance
- Used EXPORT/IMPORT to do table level and full database defragmentation
- Coding PL/SQL, SQL and Unix Scripts
- Perform Daily Logical backups using exp
- Trained a new DBA in our environment
- Writing Oracle Procedures and functions
- Installed and implemented the Oracle Database creation
- Take care of the Database design and implementation
- Implemented physical and logical database design.
- Assisted code writing in development using PL/SQL Block, Procedures, Functions Database Triggers and Packages
- Setup and maintain documentation and standards
- Moved database Schema changes to stage or production
- Created database objects like tables, views, indexes, partitions, Materialized Views.
- Automated jobs using cronjob in Shell Script.
- Monitoring Database and Tablespaces Growth and Monitoring Space Availability at Operating System
- Data warehouse Analysis, Design, Document Fact, Dimensional tables and growth requirements.
- Developed complex packages, stored procedures and functions to implement business logic
- Deploying packages to various environments with the help of kintana software.
- Troubleshooting and resolving the bottlenecks and helping the developers.
- Performing backups and recoveries using conventional hot backups.
- Took initiative to prepare the document that listed the Pre-Upgrade, Upgrade and Post upgrade task required.
- Data Load using Golden Gate Replication.
- Performing all the Database Administration activity like space management in database, user and roles administration, schema management, checking alert log of all the databases
- Frequent Check of any errors in Alert log
- Loading the data from flat files to the oracle databases using sql*loader tool
- Creating documentation and uploading in the sharepoint
Environment: Oracle 10i/11i, Linux, Toad, and kintana
Confidential
Oracle DBA
Responsibilities:
- Installing and configuring Oracle 9i on UNIX and Solaris.
- Storage and space management including table spaces and data files.
- Monitoring Database for fragmentation and correcting them.
- Developing, Testing and Implementing Sound Backup and Recovery Strategy.
- Involved in writing Queries, Stored Procedures, functions and triggers to implement the business requirements.
- Involved in Loading data (flat files) into the database tables using SQL*Loader.
- Used Oracle conventional Import and Export utilities for migrating data to different environments.
- Involved in the installation of Oracle 9i on Solaris and UNIX platform
- Experience with dbms packages.
- Dealt with stats, range commands in Golden Gate.
- Preparing Backup and Recovery Plan.
- Created tables, indexes, table spaces, users, integrity constraints and supported all phases of a Development cycle
- Analyze and suggest improvements to SQL queries and statements written by others.
- Writing Oracle scripts for the SQL and PL/SQL requirements for various applications.
- Performing Monthly Cold Backup, Weekly Hot Backup and daily backups using Export.
- Tuning the databases for optimal performance.
- Planning and implementation of Backup and recovery procedures and maintenance of Database.
- Management of table space growth, monitoring data files additions, extent growth
- Partitioning Tables by determining the suitable methodology to improve performance and manageability
- Creating and dropping of users, granting and revoking rights as and when required.
- Diagnose and troubleshoot database problems and failures
- Constantly monitor the performance using dynamic performance views of databases.
- Worked as DBA trainee to assist developers team in execution of basic DBA tasks.
- Developed and modified PL/SQL packages, stored procedures, functions, cursors, triggers as per the customer requirements
- Partitioned large tables to increase the performance
- Designed backup and recovery procedures for OLTP system
- Used TOAD tool to access the databases
- Involved in user creation and user access control, Schema creation and management
- Created indexes, rebuild indexes and maintained indexes
- Performing all the Database Administration activity like space management in database, user and roles administration, schema management, checking alert log of all the databases
- Created PL/SQL packages, procedures, cursors & exception handling.
- Creating and dropping of users, granting and revoking rights as and when required.
- Generated DDL Queries for creation of new database objects like tables, views, sequences, functions, synonyms, indexes, triggers, packages and stored procedures.
- Worked with Partition tables and indexes to improve the performance of data loading and query processing.
Environment: Oracle 8i/9i, Linux 7.2, Windows 2000 server