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what is the meant by Normalization and de-normalization?

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How to fine tune mappings?

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Explain the use lookup tables and Aggregate tables?

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what is the difference between OLTP database and data warehousing database?

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What are three tier systems in etl?

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how many maximum session supports to multiload in teradata ??

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what is Forward,Reverse and Re_engineering?

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What are the three tiers in etl?

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A mapping contains source table S_Time(stat_year,end_year) target table TIM_DIM(date,day,month,year,quarter) stored procedure transformation: A procedure has two parameters I_end_year and output parameter as O_date ,day , month, year, quarter, If this session is running, how many rows will be available in the target and why?

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flat filevalidation in informatica

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Explain about hash partitioning?

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How can write SQL Overwrite to get Daynamic rows from the source in SQ transformation!(Any Example)

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working of line item dimension......pls,tell overall flow

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