/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 vote120 views1 answer
Raiserror nowait sql server
SQL
1 vote123 views1 answer
Mysql random limit 1
SQL
23 votes94 views3 answers
Mysqldump
SQL
0 vote115 views1 answer
Sql random decimal
SQL
0 vote127 views1 answer
Copy value from one column to another postgres
SQL
0 vote132 views1 answer
Mysql get last 2 month data
SQL
0 vote150 views1 answer
C# select Mysql
SQL
0 vote125 views2 answers
Identity syntax in sql
SQL
1 vote101 views1 answer
Denied
SQL
0 vote133 views1 answer
Update view sql
SQL

Share