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Senior Dba Resume

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Detroit, MI

SUMMARY

  • An Oracle Database Administrator with over 6 years of experience in the Database Installation, Development and Production System Support.
  • Proficient in database administration, production support, installation, configuration, upgrades, patches, performance tuning, backup and recovery, cloning, space management, database security, troubleshooting, database design, Unix shell scripting and documentation.
  • Worked with Oracle Databases 10g/11g RAC on Unix/Linux/Windows platforms.
  • Experience with Installation, Configuration, Upgrades, Migrations, Administration and Patching of Oracle Databases and Oracle Applications.
  • Proficient with Standby Database, Data Guard, Replication.
  • 24x7 production oracle database support.
  • Excellent knowledge in Hot/Cold Backup and Recovery and Cloning of databases using RMAN, VERITAS Net Backup.
  • Excellent skills in shell scripting to automate jobs.
  • Extensive performance tuning experience, specializing in Operating system tuning, SQL tuning, Database/Instance tuning.
  • Database performance tuning using STATPACK, TKPROF, AWR Report,SQL Trace, Explain Plan
  • Knowledge on Oracle Support processes for technical requests with Metalink.
  • Good experience in SQL, PL/SQL, Shell Scripting, Partitioning, Data modeling, Logical and Physical Database Design, Backup and Recovery procedures.
  • Experiencing in basic and advanced replication using Oracle Stream and Golden Gate.
  • Install and configured Golden gate on Oracle and Sql servers for table and schema level replication.
  • Experience in using OEM,TOAD
  • Expertise in maintaining Database Security using auditing.
  • Experience in Data Migrations, Benchmarking
  • Expertise in loading data from flat files using external tables, SQL*LOADER.
  • Proven ability to adapt to demanding schedules and changing priorities
  • Ability to function successfully in a highly stressful, 24x7 mission critical environment.
  • Strong analytical and problem solving skills with ability to work within team environment and independently when needed.
  • Result oriented, self - motivated, Team player, ability to work independently and within a team.
  • Ability to function successfully in a highly stressful, 24x7 mission critical environment.

TECHNICAL SKILLS

Databases: Oracle 11g, Oracle 10g, Oracle 9i, Oracle 8i, and Oracle 7.x

Oracle Products: OEM (Oracle Enterprise Manager), Data Guard, RAC, RMAN, SQL Loader

Languages: SQL, PL/SQL, and Shell scripts

Operating System: AIX, HP-UX, SUN Solaris, LINUX, Windows 2000/NT/XP, UNIXRedhat Linux, MS DOS.

Other Tools: TOAD, Veritas NetBackup

PROFESSIONAL EXPERIENCE

Confidential, Detroit, MI

Senior DBA

Responsibilities:

  • Installation, configuration and maintenance of oracle 10g, 11g on AIX 6.1
  • Intensively involved in the area of installations of Oracle Software, Configuration for database and day-to-day routine works for database administration.
  • Implemented database auditing, data security and Remediate high-risk violation in production environment.
  • Database Management - Backup, & Recovery, Performance Tuning, Configuration of Database, Table space administration, User management, Index management
  • Applied Security patches and Patch set on Oracle Databases.
  • Implemented backup/recovery procedures using RMAN, Data Pump, performed database recoveries.
  • Performed Large Terabyte size Database Backup including Physical backup through hot backup/Cold Backup of Oracle Database with RMAN.
  • Designed daily, weekly Backup and Recovery procedures for production, non- production databases using RMAN backups taking periodic Complete, cumulative and differential Incremental Backups.
  • Defined backup policies for NetBackup and tested RMAN hot backups. Also ensured that file system backups are done.
  • Installation of Golden gate Replication 10.4 for one-way replication to a Reporting Database and conversion of streams processes.
  • Administration and applying patches to the golden gate.
  • Developed views, materialized views, functions, procedures, triggers, packages using PL/SQL & SQL to help developers.
  • Involved in Installation oracle 11g Grid Infrastructure on RHEL5.
  • Implemented Active dataguard on oracle 11g with physical and logical Standby
  • Worked on Tuning and Troubleshooting the Data Guard Configuration.
  • Worked with Developers creating Data Model using Erwin Data Modeler.
  • Maintaining schemas and partitioning tables.
  • Performance Tuning i.e. Tuning RAC, tuning applications, shared pool, I/O distribution, rollback segments, buffer cache, redo mechanisms
  • Worked on Automatic Storage Management (ASM) .
  • Utilized SQL*Loader to load data from SQL Server 2000/2005 databases.
  • Schemas refresh using Datapump. Creating the database, table spaces, tables, indexes, settings privileges and user logins for prod/dev/test databases.
  • Creating Database Monitoring scripts and batch files for schedule jobs.
  • Configured Recovery Manager (RMAN) like Advice on data recovery, parallel backup of the same file, and virtual catalogs for security.
  • Written shell scripts to automate the task for extracting and loading the data.
  • Working on enhancement to the existing processes.
  • Working on Production Maintenance and change requests (PMRs).
  • Tracking all the production changes thru ClearQuest
  • Tracking all the problems/requests with production processes thru Remedy tool

Confidential, Des Plains, IL

DBA

Responsibilities:

  • Involved in 24x7 support for production RAC databases with on-call pager
  • Supported production, development and testing databases of Multi Terabytes DB sizes.
  • Installing 9i, 10g and 11g databases on Solaris and Linux.
  • Skilled with AWR, ADDM to check health of database & hardware.
  • Using the tools such as tkprof, explain plans, and trace files to tune SQL Queries.
  • Performed database Cloning to setup test and development database.
  • Conducting sizing& capacity planning for Oracle databases.
  • Upgraded Oracle version from 9.2.0.4to10.2.0.1 and applied necessary oraclepatches.
  • Migration of Databases from Windows to Linux
  • Upgrade of Databases from 10g to 11g applying patches whenever required.
  • Developed PL/SQL Packages from the scratch which are used for Extract Transform and Load purpose
  • Experienced with SRVCTL, OCR and Voting Disk of 10g RAC
  • Expertise in Database Performance Tuning, Performance Monitoring and Optimization using tools such as PL/SQL, Oracle Hints, SQL Trace, Explain plans
  • Experienced with all kinds (Status, Performance, and Trend Analysis) of DB Monitoring.
  • Rebuilding of Indexes for better performance, maintenance of Oracle Database
  • Developed RMAN scripts for database backup and recovery including hot and cold backup options for both RAC and stand alone instances.
  • Installing ASM environment and migrating database from NON-ASM to ASM.
  • Configure and manage tablespaces, tables, and users for custom applications.
  • Creating and dropping of users, granting and revoking permissions to users/roles as and when required.
  • Tuning high resource queries introducing hints and creating indexes/partitions, changing the query if necessary
  • Experienced with DataguardImplementation
  • Implemented oracle high availability solution using oracle 10g Physical Standby
  • Importing data from flat files into database using SQL loader and External Tables
  • Experienced in Volume management, Disk Management using veritas volume manager.
  • Written shellscripts to automate the tasks
  • Physical and Logical database design.
  • Mapping of old data fields to new model data fields for data migration
  • Worked very closely with development team

Confidential, Farmington Hills, MI

DBA

Responsibilities:

  • Responsible for designing the Oracle Database & Schemas.
  • Responsible for migration, up gradation from oracle 8i to 9i on Windows 2000/Unix environment.
  • Designed and Installed the Oracle 8i, 9i database.
  • Responsible for pre-install analysis, activities, and installation of 8i, 9i software on server and clients and post-install testing and analysis.
  • 24 X 7 Production Support. Responsible for Backup & Recovery for Oracle Databases.
  • Responsible for all post-migration analysis and tuning.
  • Responsible for Logical/HOT/Cold backup of Oracle Databases.
  • Installed and configured Oracle Dataguard on standby servers to online transfer and apply archived log files to keep standby server in sync with primary database.
  • Installed & Configured Veritas Net Backup for Oracle on Unix.
  • Monitoring and optimizing the performance of database.
  • User creation and implemented Security administration by creating roles, views and granting the necessary system and object privileges for users.
  • Generated and analyzed STATSPACK reports and monitoring statistics for performance tuning of the database.
  • Allocating system storage and planning future storage requirements for the database system.
  • Creation of table spaces, tables, views and indexes.
  • Implemented ARCHIVE LOG Process and procedures for automatic copying files to development server as they generated.
  • Created Locally Managed tablespaces for better space management and less fragmentation of data.
  • Interacted with the users and troubleshooting the problems involved with the development of stored procedures, triggers and problems related to the privileges & resources.
  • Table partitioning as per database requirement.
  • Managing of Tablespace for different user by granting quota on Default & Temporary Table spaces.
  • Taking Backup & Recovery of Database Using Logical (Export & Import) & Physical (Online & Offline) Backup. Responsible for UNIX Shell Scripts for Housekeeping.

Confidential

Jr DBA

Responsibilities:

  • Contributed in Database Installations, Database Recreations.
  • Moving the database on the network 24 x 7 support on pager call duty.
  • Troubleshooting and Problem resolution Exports/ Imports.
  • Hot and Cold Backups, Shell Scripting, Restoration Space Management.
  • Tuning Memory, SGA, I/O, Security Management.
  • Objects sizing Strategizing Backups including usage of RMAN Database Recovery, Involvement in Database Migrations.
  • Configured TNSNAMES.ORA and LISTENER.ORA for SQL*NET connectivity.
  • Assisted application development team with database design and support.
  • Snapshots creations, strategizing and troubleshooting, DBA JOBS scheduling, monitoring and maintaining, Jobs scheduling with CRON TAB.
  • Grant privileges and Roles to users Created database objects, managed partitioned tables, managed table spaces
  • Backups taken regularly using Hot Backup and Cold Backup
  • Created both locally managed and dictionary managed tablespaces
  • Restored and Recovered using RMAN and user managed techniques
  • Performed database performance tuning, stats pack reports automation, stress test on production copy for scalability, resolving production performance issues
  • Maintained data integrity by working on constraints
  • Query Optimization using Explain plan and SQL trace with TKPROF
  • Tuned Oracle database server to suit 100% additional workload from existing 250 users to 500 users.
  • Proactively monitored the database and database access, and maintained the database security

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