/SQL/PostgreSQL add column

PostgreSQL add 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

Alter table add multiple columns postgresql

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

3

Source: postgresqltutorial.com

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

5 votes152 views3 answers
Oracle list columns in schema
SQL
1 vote159 views1 answer
Drop primary key oracle
SQL
0 vote153 views1 answer
Mysql update privileges
SQL
0 vote144 views1 answer
Sqlalchemy.exc.OperationalError:
SQL
1 vote136 views1 answer
Sql server 2012 query history
SQL
1 vote149 views1 answer
Oracle update with sequence
SQL
1 vote144 views1 answer
Oracle list data files
SQL
2 votes144 views2 answers
Useradd postgres
SQL
19 votes152 views6 answers
Sql server drop table if exists
SQL
0 vote157 views1 answer
Illuminate/Database/QueryException with message 'SQLSTATE[42S02]
SQL

Share