This definitely will help you increase your efficiency and productivity over time.
It even provides you a metadata repository from where you can easily reuse and re-purpose your work. All you need to do is drag and drop the required components from the palette into the workspace, configure them and finally connect them together. Talend open studio provides you the graphical environment using which you can easily map the data between the source to the destination system. This tool is developed on the Eclipse graphical development environment. TOS lets you to easily manage all the steps involved in the ETL process, beginning from the initial ETL design till the execution of ETL data load. Talend open studio for data integration is one of the most powerful data integration ETL tool available in the market. Some of them are:Īmong all these tools, in this Talend ETL blog, I will be talking about how Talend as an ETL Tool. There are various ETL tools available in the market, which are quite popularly used.
Now that you know about the ETL process, you might be wondering how to perform all these? Well, the answer is simple using ETL Tools. Once the data is loaded, you can pick up any chunk of data and compare it with other chunks easily. Also, while loading you have to maintain the referential integrity so that you don’t lose the consistency of the data. While performing this step, it should be ensured that the load function is performed accurately, but by utilizing minimal resources.
the extracted and transformed data, is then loaded to a target data repository which is usually the databases. Loading is the final stage of the ETL process. Generally, processes used for the transformation of the data are conversion, filtering, sorting, standardizing, clearing the duplicates, translating and verifying the consistency of various data sources. In this step, entire data is analyzed and various functions are applied on it to transform that into the required format. Transformation is the next process in the pipeline. Extraction process also makes sure that every item’s parameters are distinctively identified irrespective of its source system. Being the most vital step, it needs to be designed in such a way that it doesn’t affect the source systems negatively. The storage systems can be the RDBMS, Excel files, XML files, flat files, ISAM (Indexed Sequential Access Method), hierarchical databases (IMS), visual information etc.
Let me explain each of these processes in detail:Įxtraction of data is the most important step of ETL which involves accessing the data from all the Storage Systems. It refers to a trio of processes which are required to move the raw data from its source to a data warehouse or a database. ETL stands for Extract, Transform and Load.