To set a default value to a column in a database by PostgreSQL
-
05-07-2019 - |
Question
I am doing my first database project.
I would like to know how you can have false
as the default value for the following SQL -query
...
MODERATOR_REMOVAL boolean NOT NULL
...
Context
CREATE TABLE Questions
(
USER_ID integer FOREIGN KEY
REFERENCES User_info(USER_ID)
PRIMARY KEY
CHECK (USER_ID>0),
QUESTION_ID integer FOREIGN KEY REFERENCES Tags(QUESTION_ID)
NOT NULL
CHECK (USER_ID>0),
QUESTION_BODY text NOT NULL, -- question must have body
TITLE varchar(60) NOT NULL, -- no empty title$
MODERATOR_REMOVAL boolean NOT NULL, -- by default false$ /// Here
SENT_TIME timestamp NOT NULL
);
How can you set the default value to be false
for MODERATOR_REMOVAL
by PostgreSQL?
Solution
ALTER TABLE questions ALTER COLUMN moderator_removal SET DEFAULT FALSE
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