I am going to create a table with a column storing Created_date which is of datetime datatype. And my aim is to set its default value as sysdate().
I tried
CREATE TABLE
tbl_table
(created_date
datetime DEFAULT sysdate())
This gives me error saying not a valid default statement. I used similar logic in Oracle. Please help me to resolve this.
Thanks in advance.
Try CREATE TABLE tbl_table ( created_date TIMESTAMP DEFAULT NOW())
But: NOW
is different from sysdate
and TIMESTAMP
is different from datetime
, keep this in mind.
Normaly you only can use constants for default-values. TIMESTAMP
is the only column-type which supports a function like NOW()
. See here for further information on the MySQL Bugtracker.
CREATE TABLE tbl_table(
created_datetime DATETIME DEFAULT CURRENT_TIMESTAMP,
modified_datetime DATETIME ON UPDATE CURRENT_TIMESTAMP
)
Should do the trick.
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