Answers for "psql alter table"

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

alter column in table postgres

ALTER TABLE table_name
  ALTER COLUMN column_name TYPE column_definition;

Posted by: Guest on February-24-2021

postgres alter table owner

ALTER TABLE <tablename> OWNER TO <username>

Posted by: Guest on November-08-2020

postgres how to add field created at

CREATE TABLE my_table
(
	id serial NOT NULL,
    user_name text,
	created_at timestamp with time zone DEFAULT CURRENT_TIMESTAMP //here
)

Posted by: Guest on August-25-2020

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