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gabidavila/add_speed_to_laps_table.sql

Created February 10, 2018 16:42
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add_speed_to_laps_table.sql
-- Virtual Column
ALTER TABLE `laps`
ADD COLUMN speed DOUBLE
GENERATED ALWAYS
AS (`distance` / `time`);
-- Stored Column
ALTER TABLE `laps`
ADD COLUMN speed DOUBLE
GENERATED ALWAYS
AS (`distance` / `time`) STORED;
-- Drop Column
ALTER TABLE `laps`
DROP COLUMN speed;
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