here is the table I have Col_src A B C D E F A 1 2 3 4 5 6 B 1 2 3 4 5 6 D 1 2 3 4 5 6 C 1 2 3 4 5 6 I want to create a column with the value from the respective column indicated in col_src. Please help on solving this. Col_src Col_val A B C D E F A 1 1 2 3 4 5 6 B 2 1 2 3 4 5 6 D 4 1 2 3 4 5 6 C 3 1 2 3 4 5 6
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