SQL

postgresql update auto_increment value

ALTER SEQUENCE product_id_seq RESTART WITH 1453

SQL Auto Increment Primary Key - PostgreSQL

-- SERIAL keyword auto increments the value
CREATE TABLE Colleges (
  college_id INT SERIAL,
  college_code VARCHAR(20) NOT NULL,
  college_name VARCHAR(50),
  CONSTRAINT CollegePK PRIMARY KEY (college_id)
);

-- inserting record without college_id
INSERT INTO Colleges(college_code, college_name)
VALUES ("ARD13", "Star Public School");

auto increment in postgresql

ALTER TABLE temp ALTER COLUMN id
  ADD GENERATED BY DEFAULT AS IDENTITY

start auto increment from 1 postgres

TRUNCATE TABLE someTable RESTART IDENTITY;

primary key auto increment in postgresql

By simply setting our id column as SERIAL with PRIMARY KEY attached, Postgres will handle all the complicated behind-the-scenes work and automatically increment our id column with a unique, primary key value for every INSERT .

postgresql auto increment not working

SELECT setval('test_id_seq', (SELECT MAX(id) from "test"));