Answers for "alter table add unique postgres"

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2

postgres alter table add primary key

-- To set a column as primary key:
ALTER TABLE distributors ADD PRIMARY KEY (tablename);
Posted by: Guest on November-02-2020
0

Postgres: Create Column add constraint to the column with Query Output

ALTER TABLE customers 
ADD COLUMN contact_name VARCHAR NOT NULL;
Posted by: Guest on December-02-2020

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