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Select Columns

This transformation removes all columns except the selected ones.


Source table: The longest rivers in the world

River Length (km) Length (miles) Continent
Nile 6650 4132 Africa
Amazon 6400 3976 South America
Yangtze 6300 3917 Asia
Mississippi 6275 3902 North America

Objective: Keep the first two columns in the table. Remove all other columns.

Transformation parameters:

  • Columns to select: River; Length (km)

Output table:

River Length (km)
Nile 6650
Amazon 6400
Yangtze 6300
Mississippi 6275

See also

transformations/select.txt · Last modified: 2015/04/10 15:29 by elenap

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