What is the difference between joiner and union transformation

Union transformation is active. Hari Ramesh Posted August 2, 0 Comments. Union is active just like joiner since it can merge data from various pipelines. Thanks, Aparna. Suresh Vanga Posted August 2, 0 Comments. Hi, Union is active transformation,because it will change the no of records coming out from the transformation. Regards, Suresh. Does anyone bother looking at message dates around here? Anonymous Posted September 28, 0 Comments.

Hi harisiddamshetty, I suppose the records are getting rejected in the target, but the rows that are passed through the UNION transformation is same as the the number of Input rows.

Please correct me if I am wrong. Thanks and Regards prafulla kumar nayak. Hi Prafulla. Anonymous Posted October 16, 0 Comments. When the row type of the input rows changes at the output. It can delete the duplicates….. Hi Guys, Union Transformatin can be active or can be passive. Check the properties….. Anonymous Posted November 28, 0 Comments. So it is active. Anonymous Posted April 8, 0 Comments.

Hi kiran velmajala, The Union transformation is a multiple input group transformation that you use to merge data from multiple pipelines or pipeline branches into one pipeline branch. Thanks, Mahesh. Nandan Kumar Posted November 18, 0 Comments. Hi Kiran, Union is an active transformation because it can break all the transaction boundaries which is created before. Thanks, Nandan. Anonymous Posted February 25, 0 Comments.

Register or Login. A Union transformation can merge data from multiple sources but does not combine data based on a join condition or remove duplicate rows, like a Joiner transformation. The following table identifies some key differences between the Union transformation and Joiner transformation, which also merges data from multiple sources.

Factor these differences into your mapping design:. Remove duplicate rows. You can use a Router or Filter transformation downstream from the Union transformation to remove duplicates. Combine records based on a join condition. Include multiple input groups. Include heterogeneous sources. Merge different data types. What is the main difference between a Joiner Transformation and Union Transformation?

Join Transformation combines data record horizontally based on join condition. And combine data from two different sources having different metadata. Join transformation supports heterogeneous, homogeneous data source. Union Transformation combines data record vertically from multiple sources, having same metadata.

I'm new to Informatica What is the difference between Joiner and Union Transformation? Also, Should we use Router instead of Joiner, to increase performance when there are multiple sources? Now, Router transformation is an active and connected transformation. It is similar to the filter transformation used to test a condition and filter the data. In a filter transformation, you can specify only one condition and drops the rows that do not satisfy the condition.

Where as in a router transformation, you can specify more than one condition and provides the ability for route the data that meet the test condition. Use router transformation if you need to test the same input data on multiple conditions. So, when the data is coming from muliple sources you can use Router to route values accordingly. It will increase your performance and save time too.

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