How to remove a column from my Rails model?

Question

I need to remove a few columns from my rails model which i already created and have some row entries in that model. How to do it? Any links which has details for modifying the s

Answer 1

Via command alternative as Add, only change Add to Remove:

Single Column:

rails g migration RemoveColumnFromTable column:type

Multiple Columns:

rails g migration RemoveColumn1AndColumn2FromTable column1:type colummn2:type