how to remove default constraint from column in Db2
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06-02-2021 - |
문제
I had a table STUDENT_TB, which had column STUDENT_ID, NAME, AGE. I added a column with a following command :-
alter table STUDENT_TB add DOB TIMESTAMP NOT NULL DEFAULT CURRENT TIMESTAMP
as for the DOB column i didn't wanted it to be null. Now i need to remove that default constraint.
I tried searching but not got any success.
Regards.
해결책
I tried with this and it worked properly
alter table STUDENT_TB alter DOB drop DEFAULT
다른 팁
ALTER TABLE STUDENT_TB ALTER COLUMN DOB DROP NOT NULL
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