Ab Initio Data Warehousing Interview Questions and Answers

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Ab Initio Data Warehousing questions updated at 19 Jun 13 in Category Data Warehouse and visited 33292 Times

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Ab Initio Questions and Answers:

26 :: What is the Difference between DML Expression and XFR Expression?

The main difference b/w dml & xfr is that

DML represent format of the metadata.

XFR represent the tranform functions.which will contain business
rules

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27 :: How Does MAXCORE works?

Maxcore is a value (it will be in Kb).Whne ever a component is executed it will take that much memeory we specified for execution

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28 :: What is the syntax of m_dump command?

The genaral syntax is "m_dump metadata data [action] "

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29 :: Can anyone give me an exaple of realtime start script in the graph?

Here is a simple example to use a start script in a graph:

In start script lets give as:

export $DT=`date '+%m%d%y'`

Now this variable DT will have today's date before the graph is run.

Now somewhere in the graph transform we can use this variable as;

out.process_dt::$DT;

which provides the value from the shell.

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30 :: What are differences between different GDE versions(1.10,1.11,1.12,1.13and 1.15)?
What are differences between different versions of Co-op?

1.10 is a non key version and rest are key versions.

There are lot of components added and revised at following versions.

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hari Said:

Feb 22 2011

hello i have learning the abinitio

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Jan 24 2013

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