How can I add a column that doesn't allow nulls in a Postgresql database?

How can I add a column that doesn't allow nulls in a Postgresql database?

sql postgresql alter-table

postgresql

Postgresql - change the size of a varchar column to lower length

sql postgresql varchar alter-table

postgresql

How to alter a column's data type in a PostgreSQL table?

sql postgresql psql alter-table alter-column

postgresql

How do I alter the position of a column in a PostgreSQL database table?

sql database postgresql alter-table

postgresql

Problem with Postgres ALTER TABLE

postgresql dependencies alter-table

postgresql

Renaming multiple columns in one statement with PostgreSQL

sql postgresql ddl alter-table table-rename

postgresql

Does adding a null column to a postgres table cause a lock?

postgresql alter-table

postgresql

How to alter "REFERENCES" in PostgreSQL?

postgresql foreign-keys ddl alter-table

postgresql

Rename column only if exists

postgresql ddl alter-table

postgresql

Add primary key to PostgreSQL table only if it does not exist

sql postgresql primary-key alter-table postgresql-9.1

postgresql

PostgreSQL - change precision of numeric?

sql postgresql postgresql-9.2 alter-table

postgresql

Alter Table too slow in postgres

sql postgresql alter-table

postgresql

Cannot cast type numeric to boolean

sql postgresql casting ddl alter-table

postgresql

Change column type from timestamp WITHOUT time zone to timestamp WITH time zone

sql postgresql timezone ddl alter-table

postgresql

Adding column to table & adding data right away to column in PostgreSQL

sql postgresql sql-insert alter-table

postgresql