The Aggregator transformation

The Aggregator transformation is used for calculations using aggregate functions in a column as opposed to the Expression transformation that is used for row-wise manipulation.

You can use aggregate functions, such as SUM, AVG, MAX, and MIN, in the Aggregator transformation.

Use the EMPLOYEE Oracle table as the source and get the sum of the salaries of all employees in the target.

Perform the following steps to implement the functionality:

  1. Import the source using the EMPLOYEE Oracle table in Source Analyzer and create the TGT_TOTAL_SALARY target in Target Designer.
  2. Create the m_AGG_TOTAL_SALARY mapping and drag the source and target from the navigator to the workspace. Create the Aggregator transformation with the AGG_TOTAL_SAL ...

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