I have learned and gained Realtime knowledge from Manohar Krishna (sunmanu9@gmail.com), from which I have cleared two rounds in CTS. Relatime knowledge is must and shoud along with the Teradata concepts.
So if you are looking for a carrer in data warehousing, especially in Teradata, then just go to Manohar Krishna, he ll teach each and everything.
His demo videos are also available on youtube, just go through them, so that you can have an idea about the teaching style...etc.
I am sure that you ll feel pround after laerning that you have learned from him and feel confident while going to an interview and at job too.
All the best.
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