I need to alter a table to change the Type of a column. If the current column Type is DECIMAL(8,2) and I alter that column to be DOUBLE, will the already-existing data in the column also be changed to reflect the column’s new Type?
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I need to alter a table to change the Type of a column. If the current column Type is DECIMAL(8,2) and I alter that column to be DOUBLE, will the already-existing data in the column also be changed to reflect the column’s new Type?
It should. However, always be safe when altering existing tables.
My preferred way of doing this type of operation is: