/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

1 vote334 views1 answer
Alphabetical order mysql
SQL
0 vote333 views1 answer
Like date sql server not working
SQL
0 vote314 views1 answer
Mysql_num_fields in mysqli
SQL
14 votes342 views1 answer
Oracle new column
SQL
0 vote326 views1 answer
Sql select max value for each group
SQL
0 vote358 views1 answer
Tsql find the value and count of the item that occurs the most in a column
SQL
1 vote312 views1 answer
Create temporal table in sql
SQL
0 vote310 views1 answer
How to find unique key in sql
SQL
1 vote354 views1 answer
Database Queries
SQL
0 vote333 views1 answer
Mysql multiple primary keys
SQL

Share