ALTER COLUMN datatype with indexed one

StackOverflow https://stackoverflow.com/questions/19286318

  •  30-06-2022
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Question

Is there a way I can change a column data type without dropping the index.

With disabling option it can't 'ALTER INDEX ALL ON ' + @tablename + ' DISABLE '

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Solution

Logically speaking this should not be possible. You are changing the underlying data type, so reindexing has to happen.

So if you have a number column and you change it varchar then database will have to rearrange things which implies index will have to be recreated.

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