postgresql - How to add multiple columns to a table in Postgres ...
Mar 10, 2011 · How do I add multiple columns in one query statement in PostgreSQL using pgadmin3?
How to add column if not exists on PostgreSQL? - Stack Overflow
Sep 26, 2012 · Question is simple. How to add column x to table y, but only when x column doesn't exist ? I found only solution here how to check if column exists. SELECT column_name FROM …
postgresql - How to add new column with data on existing table
I want to add a new column with data to existing rows to an existing table. For example, add a new ADDRESS column to the table below, then add data for Adam and Tim: NAME AGE Adam ...
postgresql - Alter table add column syntax in SQL - Stack Overflow
Alter table add column syntax in SQL Asked 15 years, 5 months ago Modified 9 years, 11 months ago Viewed 56k times
sql - How do I alter the position of a column in a PostgreSQL database ...
Nov 12, 2008 · 215 "Alter column position" in the PostgreSQL Wiki says: PostgreSQL currently defines column order based on the attnum column of the pg_attribute table. The only way to change column …
sql - Add a new column to PostgreSQL database, set initial value and ...
9 Using Django, I often have to add new fields to our PostgreSQL database. The fields usually have an initial value and they must be set to NOT NULL. My procedure for this involves three steps: 1) Add …
postgresql - How to add a new Column in a table after the 2nd or 3rd ...
Aug 7, 2009 · How to add a new column in a table after the 2nd or 3rd column in the table using postgres? My code looks as follows ALTER TABLE n_domains ADD COLUMN contract_nr int after …
Adding column to table & adding data right away to column in …
Aug 29, 2013 · 12 I am trying to create a new column in an existing table, and using a select statement to do division to create the data I want to insert into my new column. Several of the statements I have …
postgresql - Postgres add column with initially calculated values ...
I'm looking to add a new column to a pre-existing table which is filled with values. The new column is going to be NOT NULL, and so for each pre-existing row it will need a value. I'm looking for ...
How to add an auto-incrementing primary key to an existing table in ...
May 31, 2010 · I have a PostgreSQL table with existing data. How do I add an auto-incrementing primary key without deleting and re-creating the table?