/SQL/Postgresql insert column

Postgresql insert column

Postgresql add column with constraint

ALTER TABLE customers 
ADD COLUMN contact_name VARCHAR NOT NULL;

31

Source: postgresqltutorial.com

Postgresql insert column

ALTER TABLE table_name
ADD COLUMN new_column_name data_type constraint;

4

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
)

2

Similar codes

1 vote210 views1 answer
Mysql current time
SQL
0 vote200 views1 answer
Postgres call view
SQL
3 votes205 views5 answers
ModuleNotFoundError: No module named 'MySQLdb'
SQL
0 vote406 views1 answer
Power bi connect to postgresql
SQL
0 vote202 views1 answer
Merge clause with inner join
SQL
0 vote196 views1 answer
Mysql function variable
SQL
1 vote160 views1 answer
Postgres kill pid
SQL
0 vote201 views1 answer
Sql find table by name
SQL
0 vote203 views2 answers
Php convert dbf to mysql
SQL
12 votes205 views4 answers
Mysql ifnull
SQL

Share