SQL domain ERROR: column does not exist, setting default

Question

I created a DOMAIN:

CREATE DOMAIN public.\"POSTAL_CODE\"
  AS character(5)
  NOT NULL;

I tried to set the default value:

ALTER          


        

Answer 1

Try this: value should be in single quote like '00000'

ALTER DOMAIN public."POSTAL_CODE" set default '00000';

Answer 2

Try this

Alter table <table name> ALTER <column name> TYPE character varying, ALTER <column name> SET DEFAULT '00000'

Answer 3

In SQL double quotes " are used to refer to a column or table named "select"

A string constant in SQL is an arbitrary sequence of characters bounded by single quotes ('), for example 'This is a string'. So this is not the same as a double-quote character (")

As a result you have to use single quote like below

select * from test where old_code = '220088242'

so in your case it should be like below

ALTER DOMAIN public."POSTAL_CODE"
    SET DEFAULT '00000';