I am creating a table that has 3 columns one primary key id
the other one reg_date
to hold the date that the user has registered and the last one exp_date
which is 4 years ahead of reg_date
to hold the expiry date of the account.
How can I set the exp_date
to reg_date
+ 4 years?
Here's the code I've written so far:
CREATE TABLE Accounts (
id INT(6) UNSIGNED AUTO_INCREMENT PRIMARY KEY,
reg_date TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
exp_date TIMESTAMP
)
Try this way,
CREATE TABLE Accounts (
id INT(6) UNSIGNED AUTO_INCREMENT PRIMARY KEY,
reg_date TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
exp_date TIMESTAMP generated always as (reg_date + interval 4 year)
)
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