Answers for "alter add column postgres"

postgresql add column with constraint

ALTER TABLE customers 
ADD COLUMN contact_name VARCHAR NOT NULL;

Posted by: Guest on February-18-2020

alter column in table postgres

ALTER TABLE table_name
  ALTER COLUMN column_name TYPE column_definition;

Posted by: Guest on February-24-2021

alter table add column psql

ALTER TABLE table_name
ADD column_name data_type column_constraint;

Posted by: Guest on February-24-2021

alter table add multiple columns postgresql

ALTER TABLE customer 
ADD COLUMN fax VARCHAR,
ADD COLUMN email VARCHAR;

Posted by: Guest on May-26-2020

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