About Us

Nurullah ÇAKIR (Founder and Author at dbtut.com)

I am the founder of dbtut.com and have been working as a database administrator since 12 years. And I also developed many Business Intelligence projects using Elasticsearch, Kibana and Grafana.

My Expertises:

SQL Server, PostgreSQL, Oracle, Elasticsearch, Kibana, Grafana, Big Data.

Ahmet DURUÖZ

I provide consulting, training, maintenance and support services. I have been working in the BT sector for 15+ years.

My Expertises:

Exadata, Oracle, mysql, PostgreSQL databases, Weblogic , linux(rhel oel debian pardus), unix (AIX Solaris HP-UX) , Exadata , IBM Power servers

I am the author of dbtut user’s oracle and mysql articles.

You can find my articles from here.

Faruk Erdem

I am a SQL Server and PostgreSQL DBA.

I have 5 years of expertise in Database Administration.

You can find my articles from here. (Article Count is 45)

Yusuf SEZER

Software developer, interested about web technologies, algorithms, artificial intelligence and embedded systems; constantly exploring new technologies.

You can find my articles from here. (Article Count is 31)

Onur ARDAHANLI

I am an Oracle DBA about 7 years.

I install, manage, configure, tune and monitor Single Node, RAC, Goldengate with RAC Structure and Data Guard Standby Databases in the RAC Structure on EXADATA and non-exadata systems.

Finally, I have 6 Oracle certificates

* Oracle Database 11g Performance Tuning Certified Expert

* Oracle GoldenGate 12c Certified Implementation Specialist

* Oracle Certified Expert, Oracle Database 12c Data Guard Administrator

* Oracle Database 11g Administrator Certified Professional

* Oracle Database 11g Administrator Certified Associate

* Oracle Database SQL Expert

You can find my articles from here. (Article Count is 29)

Melek DURDU

I graduated from Kocaeli University, Department of Information Systems Systems Engineering.

I am currently working as a Junior Database Administrator at VeridataIT.

I am mainly involved in the installation and post-installation maintenance & support services of Oracle and PostgreSQL databases.

You can find my articles from here. (Article Count is 1)

Yusuf KAHVECİ

I’m an author and founder of sqlturkiye.com platform. Our goal as SQL Turkey is to Share our experiences on DB platforms in Turkish.

I have worked in companies for 15 years as DBA, Tem Lead and DB Manager.

My expertises:

RDBMS: PostgreSQL, SQL Server, Oracle, MySQL

NoSQL: Couchbase, Apache Cassandra, MongoDB

GraphDB: Neo4j

Monitoring and DB: Prometheus, Grafana, etc.

You can find my articles from here. (Article Count is 17)

Mikael HOUNDEGNON GBA

I’m Mikael HOUNDEGNON, I have been MySQL DBA / PHP Programmer for the last 9 years but since 2017 i’m strictly MySQL DBA with OCP in MySQL 5.7

For the past 3 years, i have worked in positions that have challenged my skills in database administration, optimization, security.

I take pride in my ability to transform client ideas into polished products, or innovate solutions to their most technical problems.

My Specialties :

MySQL Replication (Master Slave, MultiMaster, Fail over, etc)

MySQL InnoDB Cluster (Synchronous Group replication)

MySQL Backups

MySQL Query Optimization

MySQL Performance Tuning

MySQL Stored Procedures

Storage Engine Tuning

You can find my articles from here. (Article Count is 10)

Jerwin Roy

Hey guys,I am young and Aspiring DBA.

Here is a brief about myself:

*Database expert with 5 year plus experience

*Database Online Trainer

*DB Performance Tuning expert

*Highly Skilled in Issue based Database Troubleshooting

*Planning DB Security and effective DB Backups

*Have handled databases ranging from 8 GB to 4 TB

*Carried out various DB and schema migrations.

*Expertise in MongoDB, PostgreSQL, SQL Server, Cassandra

*Love to explore Opensource databases

You can find my articles from here. (Article Count is 8)

Vaibhav Krishna

Selcen Sahin

-Oracle Database Administration, SQL-PL/SQL
-5 years UNIX, Linux experience
-UNIX Shell Scripting
– 7*24 administration of 40 databases from 150 GB to 35 TB of Ministry of Health some of
standalone, single instance or 2 to 6-instance RAC database on Exadata.
– Installation and configuration of Oracle Clusterware (Grid)
-Cloud Control 12c
-Exadata

– MongoDB administration
– MongoDB sharding, replication
– MongoDB shared cluster configuration
– MongoDB performance tuning

You can find my articles from here. (Article count is 8)

Buğra PARLAYAN

Burgra Parlayan is an experienced Database and Weblogic Administrator.

After completing his technical / relevant training he has got involved with a serious amount of projects.

He successfully managed database upgrade, database migration, database performance tuning projects for various public institutions.

Currently he has been employed by one of the leading financial institutions called Turkiye Hayat & Emeklilik as responsible administrator for Oracle Database and Oracle Middleware.

He has been sharing his experience and knowledge by face to face training, personal blog and various social networking accounts to support the Oracle ecosystem continuously since 2010.

You can find my articles from here. (Article Count is 7)

Shuo Wang

I have been managing MySQL database for 2 years.

I am good at MySQL database management, troubleshooting and data migration.

You can find my articles from here. (Article Count is 7)

Engr. Mohammad Rizwan Yasin

I have an experience of 9+ years in managing MSSQL Server databases. (2000/2005/2008/2012/2014/2016/2017)

I have an experience of 5+ years in MySQL (Commercial & Enterprise Editions) for both Linux and Windows platforms

I have an experience of 5+ years in Sybase ASE and have worked on SUN Sparc, Intel and IBM servers on Sun Solaris, Linux and Windows platforms

I am good in high availability solutions (Database Mirroring, Replication, Transaction Log Shipping, Clustering , Availability Groups, point in time recovery and backups) on all of the above database platforms.

I have also basic experience in writing shell scripting to automate daily repetitive tasks.

I have also worked on several operating systems Sun Solaris 9/10, Linux CentOS 5x,6x and Windows Servers 2003/2008/2012.

I have also basic experience to manage SAN Storage to manage databases.

I have also worked on several Reporting Tools (Crystal Reports, Business Objects, SSRS etc)

You can find my articles from here. (Article Count is 7)

Onur ÇINAR

Syed Naveed Raza

I have 8+ years of expertise to manage Oracle / MSSQLSERVER / DB2 LUW Database and have worked for different Banks.

I have 3+ years of experience as Temenos T24 Administration & 2 year experience on Anti-Money Laundering system (Temenos Financial Crime Mitigation).

You can find my article from here. (Article Count is 6)

Anil Joshi

Daniel Cruz

Database engineer with extensive experience coding, testing and supporting (operation) database solutions in MongoDB., Sybase ASE, Sybase IQ,DB2 Linux-Unix-Windows, Sql server, HANA, Oracle. I have 17 years’ experience in IT.

You can find my articles from here. (Article Count is 6)

Pankaj Chahar

You can find my articles from here. (Articles Count is 5)

Shaikh Mohammed Nawaz

Has  7+ years of experience in IT industry working as an Oracle DBA. He Started his Career in  Cognizant Technology solutions as a Senior Systems Executive at Bangalore India.

Currently working as Senior Oracle DB Consultant in UAE  for past 3.5 years.

He Is Expertise In Performance Tuning. He Manages Oracle , Ms SQL  and Mongo DBs.

You can find my articles from here. (Article count is 4)

Ahmad Ansari

Riaz Ahmad Ansari is an Oracle Database Consultant.

I am recognized by Ahmad name in an IT industry.

I have 20+ years of an IT experience.

I have been working for 17+ years as a Production Oracle DBA, managing all operating system based Oracle Databases.

I actively participate as a Speaker in an Oracle-related forums such as AIOUG Monthly Technical Sessions.

I am an Oracle Certified Expert (OCE) in 11g R2(Cluster, ASM & RAC).

I am an Oracle Certified Professional (OCP) in V(11g,10g & 9i).

I am also an Oracle Database Instructor , Speaker , Blogger , Author & Career Advisor.

You can reach me at [email protected]

You can find my articles from here. (Article Count is 4)

Rabikumar Singh

Amit Vashishth

Working as a Oracle DBA in Ernst & Young. Having almost six years of experience covering the length and breadth of oracle products like RAC,EXADATA and Datagaurd .

Always curious to learn the new database technologies and love to work on performance related issues.

You can find my articles from here. (Article Count is 3)

Bhushan Lipare

7.8 years of expertise in Database Administration of MySQL 5.0/5.1/5.6/5.7, AWS RDS, MongoDB 3.0/3.2/3.4, Couchbase DBA and Solution Architect.

Strong knowledge of MYSQL, PostgreSQL. NOSQL Database like MongoDB, CouchbaseDB.

Experience in Data warehousing model, Data designing and modeling.

You can find my articles here. (Article Count is 3)

Rajeev Shastri

An experienced IT professional with database administration skills across MS SQL Server, Oracle and DB2 DB,MYSQL , AWS ,AZURE ,NOSQL DB,DEVOPS,Automation

MSSQL Server experience around 13 years from SQL SERVER 2008 TO SQL server 2016, Active-Passive clusters Setup,Always On Active-Active cluster for Sql Server 2012 and 2016 DB,Log Shipping and SQL Mirroring.SQL Server 2017 on Redhat linux ,SQL server on docker containers including SQL server on Microsoft Azure and AWS.

Oracle Database experience Around 8 years from Oracle 10G to Oracle 12c including oracle db on AWS and Oracle Cloud.

DB2 and MYSQL around 1 year experience for Setting up db210 and mysql 5.7 installation and HADR setup.

NOSQL DB experience Around 2 years on Mongodb and Datastax Cassandra DB with two node Mongodb Cluster setup and Three node Datastax Cassandra setup

You can find my articles from here. (Article Count is 3)

Luis Silva

Avinav Chadha

I am working as an Oracle DBA for one of the healthcare projects managed by HCL.

The main reponsibilities of my role are as follows :

Managing database users and their privileges Capacity Management, Space and Resources Management Applying quarterly CPU an PSU patches released by Oracle to resolve bugs.

Upgrade of existing database environments to higher version

if required Performance Management Installation of RAC instances and managing clusterware resources

Managing physical standby sites for disaster and recovery.

You can find my articles from here. (Article Count is 2)

Mahendra Singh Bisht

I have an experience of 4+ years in managing MySQL database.

I have worked on MySQL server on both Linux and Windows platform.

I have an experience of 2+ years in Teradata.

I am good in MySQL replication, point in time recovery and backups.

I have also basic experience in writing shell scripting for daily repetitive tasks.

You can find my articles here. (Article Count is 2)

Vineet Badre

I am from Pune,India. I have been working as an Oracle DBA since a year.

Handson DataGuard, Architecture, Recovery, Oracle EBS. Knowledge of using Hadoop Analysis Tools including PIG, HIVE, FLUME, SQOOP .

You can find my articles from here. (Article Count is 2)

Fatima Hussain

Database analysis (includes all of the needed logical and physical design choices and physical storage parameters needed to generate a design in a Data Definition Language)

Designing the ERD module wise.

Designing, testing, installing and monitoring new solution

Maintain Server, Backup Server and Replica

Writing Procedures, Functions and Database Triggers.

You can find my articles from here. (Article Count is 2)

Samit Baghla

I Have 11 + years of experience with Telecom and product development companies with exposure with multiple fields like Databases/Support/Service Delivery/Product Development/Customer Interaction.

Working with Cassandra from last 4 years and have 8 years of experience with Oracle.

You can find my articles from here. (Article Count is 2)

Thiago Escodino

Career developed in the Database Administration area,

focused on IBM DB2,

performing structure and data administration activities,

installing and updating the DBMS, performance analysis,

suggestion and application of improvements,

automation and scheduling of routines in Linux environments ,

performing backup and restore, aiming at the mitigation of resource consumption and high availability of data.

You can find my articles from here. (Article Count is 2)

Dinesh Chandra Choubey

I am Database administration with an 5+ years.

I have hands on experience on MySQL, Mongodb , Cassandra DB’s.

I have experience about to configure MySQL replication, Database performance Tunning, Mongodb replicaSet configuration, MongoDB Sharding configuration and troubleshooting, Managing, extensive knowledge about MySQL and mongodb backup configuration, Implementation of ProxySQL over MySQL for High Availability.

You can find my articles from here. (Article count is 1)

Emrah Erdoğan

I have been working in the IT industry for over 12 years.

I have been working as SQL Server DBA for 6 years professionally.

I perform 7×24 management, installation, configuration, planning, performance tuning, migration, upgrading and baseline creation tasks for production environments.

I am interested in RDBMS, NoSQL, BigData and Docker Container technologies.

Other technologies I use in SQL Server management and monitoring are: Powershell, C#, Python, Grafana, ELK Stack.

You can find my articles from here. (Article count is 1)

Priyanka Bisht 

You can find my articles from here. (Article Count is 1)

Amzad Ali

Sharib Hussain

Süleyman Kaş

I have been managing MS SQL database for 3 years.

And I have been managing HANA DB for the last 1 years.

I’m Microsoft Certified Professional.

My competencies;
– Database Administrator,
– Database Management,
– Database Technologies,
– SAP BASIS,
– System Management,
– Data Analysis and Reporting

You can find my articles from here. (Article Count is 1)

Canan Özdemir

Experience in Oracle Core and Apps Database Administrator over than 5 years with Aktek company.

Proficiency in Oracle Database (10g,11g & 12c) and Ebs (11i and 12.2) Administration (Architecture & Configuation, Upgradation, Patching, Migrations, Exadata,Data Guard, Performance Trobuleshooting, Backup & Recovery, İnstallation)

Techical Certificates are;

-Oracle Database 11g Administrator Certified Associate

– Oracle Database 11g Administrator Certified Professional Sales Certificates are;

– Oracle Exadata Database Machine 2017 Presales Specialist

– Oracle Exadata Database Machine 2017 Sales Specialist

– Sun x86 Systems PreSales Specialist

– Sun x86 Systems Sales Specialist

– Oracle Big Data 2017 Sales Specialist

– Oracle Big Data 2017 PreSales Specialist

– Oracle Exalogic Elastic Cloud 2014 Sales Specialist

– Oracle ZFS Storage 2016 Sales Specialist

– Oracle SuperCluster 2016 PreSales Specialist

– General Product Support Specialist

– Oracle SuperCluster 2016 Sales Specialist

You can find my articles from here. (Article Counts is 1)

Mohammed Nazimuddin

I am an Oracle CORE/APPS and Exadata DBA over 10 years of experience in IT field.

I have expertise in RAC/data guard configurations, ESB installation, cloning, patching, upgrades, migrations, performance tuning and so on.

You can find my articles from here. (Article Count is 1)

Abdul Ghaffar

Database administrator (DBA) with extensive experience designing, coding, testing and supporting next-generation database solutions in SQL Server, Oracle and MySQL environments.

Proficient in an assortment of technologies, including Oracle 8i/9i/10g,  MySQL 5.6, 5.7, MS SQL Server 2000/2005/2008/2012/2014, Windows and Linux server administration (complete list on request).

Ian Sampson

I have been working on Db2 for z/OS since 1998.

Currently I am responsible for all installations and software maintenance as well as all DBA functions.

I use REXX as a programming language to help maintain our environments.

You can read my articles from here. (Article Count is 1)

Bhavani Dhulipalla

I’m Bhavani Dhulipalla, I

am an Oracle DBA and i have worked in positions that have challenged my skills in database administration, Database tuning,Application tuning Clustering and Replication technologies at the Senior level.

I have also worked Database migration’s across Data centers and optimized different type of work loads with Maximum performance.

Now I am very excited about the Big Data technology and Cloud technlogies and I am in the training phase for these technlogies

Specialities

Database administration, RAC, ASM, Dataguard, Golden gate, Database tuning, Application tuning, Exadata, SQL and PL/SQL, Shell Scripting, Big data and cloud(Beginer)

You can find my articles from here. (Article Count is 1)

Erik Cohen

Mr. Cohen has more than 35 years of management information system (MIS) experience.

He has functioned as database administrator, webserver administrator, information engineer, systems analyst, programmer, technical instructor, and technical consultant.

He has worked with large-scale database, publishing, banking, financial services, hotel management, petroleum, environmental and DOD applications.

His areas of expertise include database administration, information engineering, data analysis and modeling, structured programming, database management systems, technical customer support, and technical training.

He has also been a featured speaker at local and national technical organizations.

You can find my articles from here.(Article Count is 1)

Vinay kumar bommana

I’m managing db2 luw databases on all the three platforms(Linux, windows & UNIX) since 4+ years. I’m expertise on HADR and Q- Replication. Maintaining blog and YouTube channel on db2 luw (vinaydb2blog & dbtutorial channel). Have worked on both db2 development and adminstration.

You can find my articles from here. (Article Count is 1)

Rey Wang

I have been managed SAP/IQ columnar/data warehouse database for 7 years.

SAP IQ – Sybase IQ is out performed 50-100 times over traditional row-based Oracle DB for complex 10+ table joined SQL.

I am an expert on Sybase ASE/IQ DB cluster setup and T-SQL/ANSIi SQL tuning..

And I have been worked at Sybase whole slew of products for over 20 years; Sybase open server, open client, Sybase ASE, enterprise connect data access (ECDA), IQ.

Extensive experiences at AIX LPAR, Sun Solaris, Red Hat Linux, Ubuntu OS.

You can find my articles from here. (Article Count is 1)

Arcel Perdomo

I have been managing Oracle database for 9 years. I have worked on designing and implementing High Availability, Security and Migration solutions.

I have experience in Oracle Data Guard, RAC, ASM, Streams, Database Vault, Audit Vault, TDE, Performance Tuning, PLSQL and SQL.

I have worked with Data Center ‘s technologies and solutions related with SAN conectivity and storage elements, backup and servers.

ABD ALRHMAN ALLOUSH

11 years experience as Oracle Database Administrator & MySQL Database Administrator. Experience in Percona XtraDB Cluster, Galera Cluster & Perconca ProxySQL (Installation, Configuration, Tuning, Backup and Recovery and Maintanance).

Long experience in freeradius (Installation, Configuration and Tuning). Long experience in creating applications like ERP, Member Area, Ticketing System, Billing System. Experience in reporting systems like (Jasper Reports, iReports, Open Reports).

You can find my articles from here. (Article Count is 1)

Rahul Shekhawat

Experienced MySQL Database Administrator with a demonstrated history of working in the computer software industry.

Skilled in MYSQL, RDS, AWS, Database tuning, Replication, Backup Management, Database Monitoring, Database Upgrade, MySQL Tuning Query Optimization, and Linux.

You can find my articles from here. (Article Count is 1)

Prabhu Sundarraj

An Enthusiastic Data Engineer with more than 2+ years of experience.

Having very good exposure to deal with MULTI-BILLION events per day and all the follow up challenges as a result.

Building scalable big-data pipelines / applications / data warehouse with Hadoop, Spark, Scala. Have been working with Big Data stack for past 2 plus years.

An active follower of data industry to understand the landscapes very well.

Expert in hadoop multi node cluster configuration.

I have been managing Mysql database for more than 1 years.

I have been worked on INFORMATICA tools for more than 1 years.

expert in hadoop single node and multi node cluster configuration on ubuntu and centos.

expert on linux installations.

You can find my articles from here. (Article Count is 1)

Sarthak Tomar

Mysql DBA/Developer with 1.5 year hands-on experience.

Mysql Installation, MySQL Replication setup and Administration on Master-Slave and Master-Master.

Galera Cluster for High-Availability solution.

MySQL Backup utilities for Hot & Cold Backup like Percona Xtrabackup,Automysqlbackup & Mysql Point-In-Time recovery.

Shell scripting and Unix/Linux shell commands.

Knowledge of Haproxy for Load Balancing of TCP/HTTP Services.

You can find my articles from here. (Artile Count is 1)

Sohel Teli

Hands on experience with Enterprise Hadoop Deployed production cluster on Aws cloud environment work experience in maintaining Hadoop Cluster on Cloudera Distribution with different ecosystem like Sqoop Yarn flume Hive kafka etc.

Configured Kerberos for security and authentication in Hadoop cluster.

You can find my articles from here. (Article Count  is 1)

Sameer Sharma

I have 8.5 years of experience in Oracle database administration and worked extensively on Dataguard.

I am an expert on migration of Oracle databases to RDS(AWS) and also have good knowledge of on-prem to AWS migrations and Oracle cloud For the last 4 years i have been working on AWS system operations and solutions and leading an operations team working on AWS environment.

I am Oracle,AWS and ITIL certified.

You can find my articles from here. (Article Count is 1)

Rajni Baliyan

I am currently heading Support team in Fujitsu, who is supporting OSS PostgreSQL and Fujitsu’s Enterprise Postgres.

I love to meet people out, so pre-sales and consultations are also important part of my job.

I started my career as Oracle DBA 8 years back and on the way of solving Database problems, I got the curiosity to learn other RDBMS like PostgreSQL and SQL server.

PostgreSQL attracted me most as being Oracle DBA it was not difficult to pick it up.

It encouraged me to clear PostgreSQL Professional certificate together with Oracle and SQL Server professional certificates.

I relax by cooking my daughter’s favorite food and enjoy it with her.

You can find my articles from here. (Article Count is 1)

Nikhil Shetty

I am working  working as a database consultant for postgres at Ashnik having more than three years of experience working as a database administrator at TCS and as a senior analyst at Allianz Technology on different technologies such as Postgres, Oracle and SAP HANA.

I have experience in handling large databases and his roles include database setup, high availability, migration, backup and recovery and upgrade.

You can find my articles from here. (Article Count is 1)

Abhinav Khandelwal

Abhinav Khandelwal has 11 years of industry experience in BI, analytics, and data warehousing.

He gained a BE from GIT Sitapura, Jaipur. He has completed is PG in IT projects from Welingkar, Mumbai and is currently based in Melbourne.

He acts as a senior consultant on BI DWH projects.

He has also been in the news for his award-winning projects.

For more information, you can refer to his wordpress blogs as anonymously rave and three of kind. Contact him on Twitter at @abhi_khandu

You can find my articles from here. (Article Count is 1)

Jagannath MK

I have been managing MySQL databases from last 3 years. I am expertise in mysql installation,upgradation,replication setup, query optimization, backup setup and monitoring. I have written shell scripts for monitoring mysql databases and backup. I have used percona toolkit, percona monitoring and management(PMM) tool, galera replication and Xtrabackup.

You can find my articles here. (Article Count is 1)

Nikhil Palle

I am having 6+ year of experience on PostgreSQL database. Expert in DB installing and managing infrastructure.

You can find my articles here. (Article Count is 1)

Gagan Sharma

I am Sybase DBA and I am managing Sybase Servers and Databases since 2016 till today . I am an expert in Server upgrade . And having knowledge of handling Server Migration and Capacity Planning to meet Future Requirements . I used to be main Lead During PROD Server Maintenance tasks and Configiration changes .

I am an expert in Writing Autosys Jobs and its Scheduling,Maintaining and Troubleshooting for databases . I used to participate in Disaster Recovery Plan Activities and performed Multiple times as DR Coordinator .

You can find my articles from here. (Article Count is 1)

Jithin P G

I have been administrating Couchbase and Oracle databases for past 2 years, main focus being couchbase. Good with shell scripting and python for database automation.

You can find my articles from here. (Article Count is 1)

Tushar Takate

Bharat Sahu

You can find my articles from here. (Article Count is 1)

Vasim Shaikh

You can find my articles here. (Article Count is 1)

Vijay Tumunuri

I am a Teradata certified Expert with 6 years of experience and has strong knowledge in Teradata Database architecture and Administration and expertise in troubleshooting user issues and problem analysis. And has hands-on experience in installation and configuration of Teradata database on Virtual Machines (TVME) and Public cloud such as Amazon Web Services (AWS).

You can find my articles from here. (Article Count is 1)

Naga Seshi Kumar Salveru

Over 7+ Years of IT experience including a 3 years of work experience in Silicon Valley (San Francisco).

Experienced in Implementation, Design, Development, Testing and Production support for Databases in industry verticals Financial, Transport, and Insurance Industries with excellent interpersonal, strong analytical and problem-solving skills.

Expert in Migrating Databases across different flavours of Databases (RDBMS – RDBMS / RDBMS – NoSQL) Hands on experience setting up Database insfrastructure in AWS cloud.

Experienced in automation using Shell scripts. Experienced in working and collaborating with people from different work cultures Learning new technologies is always a desire.

You can find my articles from here. (Article Count is 1)

Pavithra Kumar

You can find my articles here. (Articles Count is 1)

Saw Hser Eh

You can find my articles from here. (Article Count is 1)