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Timestamp Default Data

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Dear all,


For an e.commerce project, I have the following for a carts table, which seem to be the practice in assigning date/time to such table:


`date_created` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
`date_modified` timestamp NOT NULL DEFAULT '0000-00-00 00:00:00',


What are the merits in assigning default values as such for each date?

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You have to use a default value if you define the column as not null, but don't include those columns in the insert statement. You can allow null values in a column and then if you don't include them in the insert they will default to null. date_modified would make more sense to default to a null value instead of a point 2016 years ago.

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