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
