ETL – how to prepare
data for analysis
Need to overlay data from multiple sources? Your data is unstructured and needs cleaning? Would you like to automate all this and get a powerful source for analysis? Learn modern ETL technologies that will allow you to focus on building data models.
Take advantage of data preparation services
and speed up your data work later.
Find out more
Take advantage of data preparation services
and speed up your data work later.
ETL process – what is it?
The ETL (Extract-Transform-Load) process is one of the most important elements of Business Intelligence implementations. It allows us to integrate data from all our systems, applications and collect it in one place.
Extract – extracting data from a specific source.
Data can be obtained by, among other things:
– connecting the source system to the database, – making data available by the source system, e.g. in the form of flat files and database tables,
API – Application Programming Interface, thanks to which it is possible to download data from a particular period
Transform – transformation. It involves the transformation of data into such a form that it can be analyzed correctly. The process of data processing is performed by means of operations like: Pivoting (converting rows to columns or columns to rows), aggregating data, cleaning, merging, unifying, joining and filtering.
Load – loading. This is the last step thanks to which the data will be loaded into the output form, e.g. Tableau extracts or database tables.
Find out more
Extract – extracting data from a specific source.
Data can be obtained by, among other things:
– connecting the source system to the database, – making data available by the source system, e.g. in the form of flat files and database tables,
API – Application Programming Interface, thanks to which it is possible to download data from a particular period
Transform – transformation. It involves the transformation of data into such a form that it can be analyzed correctly. The process of data processing is performed by means of operations like: Pivoting (converting rows to columns or columns to rows), aggregating data, cleaning, merging, unifying, joining and filtering.
Load – loading. This is the last step thanks to which the data will be loaded into the output form, e.g. Tableau extracts or database tables.
Find out more
How can we help you?
We propose:- Analysis of data structure.
- Integration, cleaning and modeling of data.
- Design of data flows.
- Extension of existing ETL processes.
- Optimization of existing data flows.
- Supervision of the correct course of ETL processes.
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Benefits from ETL implementation
Efficient and comprehensive preparation of data for further analyses.
Efficient and proven source of data for analysis.
Aggregated, cleaned and unified data.
one perfectly prepared source of information.
Assistance of specialists.
Technologies we use:
Tableau Prep
– It has many features that simplify the process of data cleaning, grouping and quick editing, without the need for coding skills. All functionalities are very easy to use, thanks to the ‘drag&drop’ method. Tableau Prep graphically shows each step during the transformation of data. We can save the entire change process so that we don’t need to do it again in the future. Tableau Prep is an easy-to-use ETL tool that any user with no database experience will get the most out of.
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– It has many features that simplify the process of data cleaning, grouping and quick editing, without the need for coding skills. All functionalities are very easy to use, thanks to the ‘drag&drop’ method. Tableau Prep graphically shows each step during the transformation of data. We can save the entire change process so that we don’t need to do it again in the future. Tableau Prep is an easy-to-use ETL tool that any user with no database experience will get the most out of.
Find out more
Airflow
Apache Airflow is one of the most popular tools written in Phyton. It is used to collect in one place cyclical tasks in the form of a workflow/pipeline. It is a software that can be easily used to plan and monitor workflows without complex configurations.
Find out more
Apache Airflow is one of the most popular tools written in Phyton. It is used to collect in one place cyclical tasks in the form of a workflow/pipeline. It is a software that can be easily used to plan and monitor workflows without complex configurations.
Find out more
Power Query
– Power Query is an add-on from Microsoft that allows you to easily perform actions that until now were reserved only for Excel masters and VBA developers. Power Query is also used to retrieve and transform data for analysis in BL tools. Query automation is done without VBA which allows automatic data refreshing.
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– Power Query is an add-on from Microsoft that allows you to easily perform actions that until now were reserved only for Excel masters and VBA developers. Power Query is also used to retrieve and transform data for analysis in BL tools. Query automation is done without VBA which allows automatic data refreshing.
Find out more
Integration services
Integration services is an ETL tool, it is a component of Microsoft SQL Server software that was created to perform a wide range of data migration tasks.
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Integration services is an ETL tool, it is a component of Microsoft SQL Server software that was created to perform a wide range of data migration tasks.
Find out more
ETL vs ELT process
In addition to ETL processes, there are also ELT processes. ETL is the acquisition, transformation, and loading of data, while the ELT process is the loading of data into the staging area first, followed by the ETL-related processes of transformation and loading into the target table schema.Contact with us >
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