Answer Posted / ande

two types of schemas r there: Star schema and snow flake
Schema: in Snow flake schema normalozation is promoted
where as in star schema denormalization is promoted. incase
of snowflake schema DB size will be saved but no of joins
will be increased and poor performance compare with star
schema
regards,
ande

What is Data Caches size?

1029

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Explain the difference between mapping parameter and mapping variable?

977

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Can we create a Integration service without a Repository service and vice versa?

1169

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What can we do to improve the performance of informatica aggregator transformation?

1041

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What if the source is a flat-file?

1041

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How do you migrate data from one environment to another?

1041

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COL1,COL2 ABC,1 XYZ,2 HERE IN COL2 VALUES 1,2 NOT STSANDARD(IE MEANS NOT FIXED VALUES LIKE OTHER SOME VALUES LIKE 10,20) O/P IS COL1,COL2 ABC,2 XYZ,1

1891

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What is substr in informatica?

1131

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Have you worked with/created Parameter file

1610

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Tell me can we override a native sql query within informatica? Where do we do it? How do we do it?

1009

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Hi, In source I have records like this No name address 10 manoj mum 10 manoj dilhi 20 kumar usa 20 kumar Tokyo I want records in target like shown below No name addr1 addr2 10 manoj mum dilhi 20 kumar usa Tokyo If it is reverse we can do this by using Normalizer transformation by setting occurance as 2. Somebody will say use denoralization technique. But as of my knowledge I couldn’t find any denormalization technique. Is there any concept like that? I tryid this seriously but I could find any idea to implement this. Can any one please help me ? Advance Thanks

7861

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What are the main features of Oracle 8i with context to datawarehouse?

2051

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How union transformation is used?

952

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Implementation methodology

1653

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Which means the first record should come as last record and last record should come as first record and load into the target file?

1017

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