Data Validation from hetrogenius sources To Teradata.

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Data Validation from hetrogenius sources To Teradata.

i Have a question on Data validation.We use informatica Powercenter for Data Warehouse Deelopment/ETL.Having multiple source system sending Data to Datawarehouse,My Gola is to ensure source Data loads correctly to Target and I am performing Database validation.I looked in to some tool to validate the data.any advice on this is highly appreciated.