Answers for "psql alter column"

SQL
31

postgresql add column with constraint

ALTER TABLE customers 
ADD COLUMN contact_name VARCHAR NOT NULL;
Posted by: Guest on February-18-2020
7

postgresql change column type

ALTER TABLE assets ALTER COLUMN name TYPE VARCHAR;
Posted by: Guest on May-26-2020
3

alter column in table postgres

ALTER TABLE table_name
  ALTER COLUMN column_name TYPE column_definition;
Posted by: Guest on February-24-2021
2

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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