Tag: ETL Testing Online Training in hyderabad

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Best ETL Testing online training institute in hyderabad

Both ETL testing and database testing involve data validation, but they are not the same. ETL testing is normally performed on data in a data warehouse system, whereas database testing is commonly performed on transactional systems where the data comes from different applications into the transactional database.

Here, we have highlighted the major differences between ETL testing and Database testing.

ETL Testing

ETL testing involves the following operations −

  • Validation of data movement from the source to the target system.
  • Verification of data count in the source and the target system.
  • Verifying data extraction, transformation as per requirement and expectation.
  • Verifying if table relations – joins and keys – are preserved during the transformation.

Common ETL testing tools include QuerySurge, Informatica, etc.

Database Testing

Database testing stresses more on data accuracy, correctness of data and valid values. It involves the following operations −

  • Verifying if primary and foreign keys are maintained.
  • Verifying if the columns in a table have valid data values.
  • Verifying data accuracy in columns. Example − Number of months column shouldn’t have a value greater than 12.
  • Verifying missing data in columns. Check if there are null columns which actually should have a valid value.

Common database testing tools include Selenium, QTP, etc.

 

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ETL Testing online training institute in hyderabad

The data in a Data Warehouse system is loaded with an ETL (Extract, Transform, Load) tool. As the name suggests, it performs the following three operations −

  • Extracts the data from your transactional system which can be an Oracle, Microsoft, or any other relational database,
  • Transforms the data by performing data cleansing operations, and then
  • Loads the data into the OLAP data Warehouse.

You can also extract data from flat files like spreadsheets and CSV files using an ETL tool and load it into an OLAP data warehouse for data analysis and reporting. Let us take an example to understand it better.

Example

Let us assume there is a manufacturing company having multiple departments such as sales, HR, Material Management, EWM, etc. All these departments have separate databases which they use to maintain information w.r.t. their work and each database has a different technology, landscape, table names, columns, etc. Now, if the company wants to analyze historical data and generate reports, all the data from these data sources should be extracted and loaded into a Data Warehouse to save it for analytical work.

An ETL tool extracts the data from all these heterogeneous data sources, transforms the data (like applying calculations, joining fields, keys, removing incorrect data fields, etc.), and loads it into a Data Warehouse. Later, you can use various Business Intelligence (BI) tools to generate meaningful reports, dashboards, and visualizations using this data.

 

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ETL Testing Online Training In Hyderabad

Future Q Technologies is a brand and providing quality online trainings to students in world wide. We are giving best online training on ETL Testing Online Training.

Extract, Transform & Load is a process in Data Warehousing. ETL refers to, “Extraction of data from different applications” developed & supported by different vendors, managed & operated by different persons hosted on different technologies “into Staging tables-Transform data from staging tables by applying a series of rules or functions – which may include Joining and Reduplication of data, filter and sort the data using specific attributes, Transposing data, make business calculations etc – to derive the data for loading into the destination system-Loading the data into the destination system, usually the data warehouse, which could further be used for business intelligence & reporting purposes.

Future Q Technologies recognized as No.1 ETL Testing Training Center in Hyderabad

We are providing ETL Testing Online Training in Hyderabad. We are one of best Institute to provide Best High Quality ETL Testing online training all over India. If you are staying in Hyderabad, Bangalore, Chennai, Pune, Delhi, USA, UK, Australia, and Singapore etc. and unable to attend regular class room training programs then contact our training institute for information on online training.

For more details on ETL Testing Online Training please call to 9581111796 / 9581111896, or drop a mail to: online@futureqtech.com

 

 

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Dataware houseing online training

ETL systems commonly integrate data from multiple applications (systems), typically developed and supported by different vendors or hosted on separate computer hardware. The separate systems containing the original data are frequently managed and operated by different employees. For example, a cost accounting system may combine data from payroll, sales, and purchasing.

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ETL Testing Online Training

Extract, Transform & Load is a process in Data Warehousing. ETL refers to, “Extraction of data from different applications” developed & supported by different vendors, managed & operated by different persons hosted on different technologies “into Staging tables-Transform data from staging tables by applying a series of rules or functions – which may include Joining and Deduplication of data, filter and sort the data using specific attributes, Transposing data, make business calculations etc – to derive the data for loading into the destination system-Loading the data into the destination system, usually the data warehouse, which could further be used for business intelligence & reporting purposes.