/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

0 vote171 views1 answer
Tsql cte in a transaction
SQL
0 vote145 views1 answer
Sqlite get date only
SQL
0 vote170 views1 answer
SqlMessage: "Table 'Friends' already exists",
SQL
0 vote138 views2 answers
SQLSTATE[42S22]: Column not found: 1054 Unknown column 'created at' in 'field list' (SQL: insert into `categories` (`category_name`, `user_id`, `created at`) values (sea fish, 1, 2021-09-24 04:17:31))
SQL
0 vote195 views1 answer
Sqlite display headers on columns
SQL
1 vote218 views3 answers
Showing all columns in an sqlite table
SQL
0 vote136 views4 answers
Database stuck at restoring state
SQL
0 vote139 views1 answer
Mysql Digital Ocean connection problems
SQL
0 vote140 views1 answer
Oracle webcenter content search enginer
SQL
0 vote166 views1 answer
Insert output identity
SQL

Share