/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

0 vote337 views1 answer
TSQL convert csv to table
SQL
0 vote338 views1 answer
How to define a save method in ruby for sql databases
SQL
0 vote319 views3 answers
Mysqli count down
SQL
0 vote313 views1 answer
Search db for table name
SQL
0 vote336 views1 answer
Sql replace id with name from another table
SQL
0 vote337 views1 answer
Order by with where clause in mysql
SQL
4 votes333 views2 answers
Postgres update single column
SQL
0 vote321 views2 answers
How to find max and min salary in sql
SQL
0 vote336 views1 answer
Postgres statistics
SQL
3 votes338 views2 answers
How to start mysql in terminal
SQL

Share