Answer / ysindhureddy77@gmail.com

A mapping parameter is a user definable constant that takes up a value before running a session. It can be used in SQ expressions, Expression transformation etc.


A mapping variable is also defined similar to the parameter except that the value of the variable is subjected to change. It picks up the value in the following order.

 From the Session parameter file
 As stored in the repository object in the previous run
 As defined in the initial values in the designer
 Data type Default values

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I have 4 columns in a table say, name ,address, salary and city. So based on distinct city names, i need to combine the other data and send it to a flat file. Distinct city names can be 4 or 5 or 6. So it has to dynamically generate flat files(4 or 5 or 6) corresponding to the city names.

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