Dozie & Associates

ETL applications like Talend, SSIS and Pentaho can simplify ETL or Data migration by eliminating or reducing the amount of SQL coding needed to complete the process. However same functions performed by ETL applications can be performed by scripting using various dialect of SQL and programming language like C# or Java. The downside of scripting manually without an ETL application is the need of connecting to data source and destination source. However most vendors like Microsoft SQL Server provides developers the option through linked server using SQL Server Management Studio or Oracle MySQL Workbench for MySQL.  Depending on the application a third programming language is need as interface like Java or C++ when performing the process from a developmental application. This will allow both the source and destination sources to be linked.  Another problem with the manual process is the complexity of SQL coding needed which needs to be altered constantly and the length of the codes invol

Migrating data  can be a challenging  task depending on the size of the data, platform and systems involved with the migration process. The age or the nature of data can also add to the complexity of the migration process. Legacy data or old data needs to be re-validated and cleaned to prevent any major issues when the data has been migrated just like you have with Data Warehouse system. ETL applications like Talend , Pentaho and Microsoft SSIS can be utilized in this process. The structure of the data plays a major role in determining the schema and the layer of the data.Texted based systems and RDBMS have different properties that needs to be examined and changed. The final properties to be examined is the platform. Migrating data from SQL Server 2008 to SQL Server 2012 is much easier than migrating from SQL Server 2008 to Oracle 12c or 11g due to different datatypes, objects , schema and properties. In some cases the underlying objects like Stored pr