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MySQL is free open Source relational database management system under the terms of the GNU General Public License .

Its one of the most popular databases in the market and used by very large companies such Facebook and booking.com and more.

It support ACID ( Atomicity, Consistency, Isolation, Durability) , It’s highly  stable, reliable and can scale to 10,000’s concurrent reads per second  very easy.

MySQL is written in C and C++ what makes it one of the fastest RDBMS for online transaction processing systems (OLTP).

MySQL was created by a Swedish company, MySQL AB, later bought by Sun microsystems which was acquired by Oracle corporations in 2010.

Oracle MySQL come in Community version and enterprise version which include additional features and support.

In addition to Oracle MySQL there 2 widely used MySQL Products:

  1. Percona Server for MySQL – which is fully compatible with Oracle MySQL.
    In addition Percona come with many free utilities – Percona Toolkit which are supported in Linux Systems .
  2. Maria DB – Created a fork after the acquisition by oracle in 2010 . Maria DB core functionality is compatible with Oracle MySQL but has many new features that does not exists in Oracle MySQL.

MySQL can scale reads and achieve high availability using many replications servers (slaves) where writes on master are replicated asynchronously to the slaves with no impact on the master.

In addition MySQL can achieve better High Availability using Galera Cluster which is master less and replication is being done synchronously. In case of node crash the system continue to function with no need to do fail over (as in master slave solution)

Use Case:
Online Applications such : Web ,  Mobile or desktop.

Our Services:

  • Database Architecture, Data Modeling
  • DBA and DevOps – Cluster / replication Installation, Performance Tuning, Upgrades, backup and recovery
  • Data Engineering using Python.
  • SLA 24*7 Support
  • Oracle Migration to MySQL
  • SQL Server Migration to MySQL
  • MySQL on Cloud – Amazon RDS or Google Cloud SQL
 

PostgreSQL is free open Source relational database management with ability to handle Data Warehouses or Online Applications such as web and mobile applications.

PostgreSQL support ACID ( Atomicity, Consistency, Isolation, Durability) with very rich functionality as any Enterprise Database .It has features like Materialized view , Analytic functions , Parallel queries , etc.

PostgreSQL can scale reads and achieve high availability using replication.
Repmgr or pgpool2 can be used to manage  replication , failover and load balancing.

 

Use Case:
Online applications such Web , Mobile or desktop Application.
Small data warehouses.

 

Our Services:

  • Database Architecture, Data Modeling and DBA
  • DevOps – Cluster and replication Installation, Performance Tuning, Upgrades, backup and recovery
  • Data Engineering using Stored Procedures and
  • 24*7 Support
  • Oracle Migration to PostgreSQL
  • SQL Server Migration to PostgreSQL
  • PostgreSQL On Cloud – Amazon RDS, Google Cloud SQL

Oracle Database is licensed Relational database management used to run on mixed load of online transaction processing and data warehouse.

Oracle is known for its high reliability, high availability and rich functionality.

Oracle is mainly used in Enterprise corporations likes Banks, credit card companies, Insurance companies, etc.

These types of companies need high data guarantee with the ability to support many concurrent transactions, fast heavy analysis, scale and high availability with close to zero downtime.

Oracle scale using Oracle Real Application Cluster (RAC) where every server in the cluster can serve reads and writes and all servers are writing to the same storage.

Oracle Exadata is oracle in house computing Platform which include Machines, Storage, OS and software to support high end OLTP and Datawarehouse solution.

High Availability is being done using Oracle Data Guard where remote Database Server / cluster get replication data from Primary Data Center and in case of disaster the standby database / cluster become primary.

Oracle have 3 types of deployments:

  1. Enterprise edition – industry leading scalability and reliability
  2. Standard edition – small to medium sized implementation include limited oracle real application cluster.
  3. Personal edition – single user, single machine with all databases features without oracle real application cluster.

Use Cases

High End OLTP and DWH Solution.

Our Services:

  • Database Architecture, Data Modeling and DBA
  • DevOps – RAC and Database Installation, Data Guard Setup, Performance Tuning, Upgrades, backup and recovery
  • Data Engineering using PLSQL and Python.
  • SLA 24*7 Support

Microsoft SQL Server is licensed Relation database management used to run on mixed load of online transaction processing and data warehouse.

SQL Server is mainly installed on Windows Operating system although is started to support Linux as well.

SQL Server initially was ported from Sybase ~1989 and was first released in 1993 (Version 4.2).

SQL Server is very fast , reliable and rich with functionality what makes one of the most poplar databases for companies based on Windows server operating systems .

One of the most benefits of SQL Server is that it come with additional strong products as part of the SQL Server database:

  1. SQL Server Integration Services (SSIS) – Strong ETL tool that enable to Extract, Transform and Load the data into and from the database.
  2. SQL Server Analysis Services (SSAS) – Add OLAP, Analytic and Data mining capabilities.
    MOLAP, ROLAP and HOLAP storage modes for data. Analysis Services supports the XML for Analysis standard as the underlying communication protocol. The cube data can be accessed using MDX and LINQ queries
  3. Reporting Services – Custom Application report development. Report Development can be done using Microsoft visual studio or business development studio.
  4. Full Text Service – Indexing and querying unstructured data stored in SQL Server Database .

SQL Server Support High Availability using:

  1. Database Mirroring which replication can be done synchronous and asynchronous.
  2. Log Shipping – log backups are copied to remote secondary servers and restored in the secondary server – Log Shipping support unlimited number of secondaries for each primary database.
  3. Always ON – Cluster High Availability between 2 data centers. Primary DC have Active Passive cluster using shared storage sending replicas to remote DC.
    when the primary DC cluster Crash remote DC can be Activated.

Use Cases

High End OLTP and DWH Solution.

Our Services:

  • Database Architecture, Data Modeling and DBA
  • DevOps – Cluster and Database Installation, Always on ,database Mirroring and log shipping Setup, Performance Tuning, Upgrades, backup and recovery
  • Data Engineering using SSIS , TSQL and Python.
  • SLA 24*7 Support

Architecture,Design and Sizing

LTP and Datawarehouse Systems.Runing POC ,Data Flow and Access Design machine.

 

Install and Configure

Real Application Cluster(RAC), DataGuard on Linux,Unix and Windows Platform.

 

DB Development & Release

Using SQL,PLSQL TSQL and shell scripts integrated with CM tools.

 

Performance Tuning

Database optimzation from application level to DB,OS and HW level.

 

Backup and Restore

Tailoring the best backup and restore solution per application type.

 
 

Install and Configure

Real Application Cluster(RAC), DataGuard on Linux,Unix and Windows Platform.

 

DB Development & Release

Using SQL,PLSQL TSQL and shell scripts integrated with CM tools.

 

Performance Tuning

Database optimzation from application level to DB,OS and HW level.

 
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