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Editorial Team
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Asked: 2026-05-16T12:25:18+00:00

For example, suppose I have a TINYINT column that I want to change into

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For example, suppose I have a TINYINT column that I want to change into an ENUM. Is it possible to write a MySQL query that changes the datatype of the column while mapping the existing data so that (for example) 0 becomes No, 1 becomes Yes, and 2 becomes Maybe?

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1 Answer

  1. Editorial Team

    I’m not sure if this is possible in MySQL, but an alternative solution would be to:

    1. Add the new column with the new type with a new name
    2. Set the new column values (given the old column values)
    3. Drop the old column
    4. Rename the new column to have the same name as the old column
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