/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 vote328 views1 answer
How to get alternate records from a table in sql
SQL
0 vote357 views1 answer
The package java.sql is not accessible
SQL
3 votes353 views2 answers
Sql end of month
SQL
0 vote373 views1 answer
Sqlite unique multiple columns
SQL
-1 vote311 views2 answers
Sql server date format yyyy-MM-ddThh:mm:ss
SQL
0 vote338 views1 answer
Oracle query archivemode
SQL
0 vote321 views1 answer
Allow all local clients (local socket connections) to connect to the kodekloud_db1
SQL
1 vote319 views2 answers
Mysql order by date asc null last
SQL
0 vote347 views1 answer
How to read the potentail error messages in ssis package
SQL
1 vote349 views1 answer
Sql server: query to find out all the places where the table is used
SQL

Share