Monday, 22 August 2016

PostgreSQL setval Sequence - PostgreSQL manually alter sequence - Reset sequence of setval in PostgreSQL - Ali Raza Bhayani

In one of the my PostgreSQL tables, I used a very handy builtin Sequence Manipulation function setval() of PostgreSQL to generate Primary Keys in a sequential and controlled manner. But during a migration, I wanted to identify new records by Primary Key sequence greater than thousand. A very handy and tested recipe to restart the setval() function sequence for such cases is by using RESTART WITH in the following way:
is equivalent to:
    SELECT setval('sequence_name', 1, FALSE);
Either of the above statements may be used to restart the sequence and for getting the next value following statement can be used:
The above recipe can also be used to reset PostgreSQL primary key sequence when it falls out of sync.


  1. Replies
    1. IEEE Final Year projects Project Centers in Chennai are consistently sought after. Final Year Students Projects take a shot at them to improve their aptitudes. IEEE Final Year project centers ground for all fragments of CSE & IT engineers hoping to assemble.Final Year Projects for CSE

      Spring Framework has already made serious inroads as an integrated technology stack for building user-facing applications. Spring Framework Corporate TRaining .

      Specifically, Spring Framework provides various tasks are geared around preparing data for further analysis and visualization. Spring Training in Chennai

      The Angular Training covers a wide range of topics including Angular Directives, Angular Services, and Angular programmability.Angular Training

  2. This comment has been removed by the author.

  3. I was surfing the Internet for information and came across your blog. I am impressed by the information you have on this blog. It shows how well you understand this subject. PostgreSQL NULL value

  4. شرکت تلکا هاست پیشرو در میزبانی انواع وب سایت و هم چنین دارای انواع هاست فوق ارزان با کنترل پنل سی پنل میباشد.حتما از سایت ما دیدن کنید و از قیمت های مناسب برای انواع سرویس های وب و ثبت انواع دامنه شگفت زده شوید.

  5. Very interesting blog. Many blogs I see these days do not really provide anything that attracts others, but believe me the way you interact is literally awesome.You can also check my articles as well.

    Security Guard License
    Ontario Security License
    Security License Ontario
    Security License

    Thank you..

  6. I am glad to post a worthy article about the German Language Course and IELTS Coaching from KCR consultants, this may change your career growth and language skill.

  7. ZModeler Crack is an ideal included 3D demonstrating an interest which intends to benefit visual specialists joined by making the low. Zmodeler 3 Crack

  8. May God bless you with all of the wonderful desires of your heart and bless you to keep the many blessings that you already have. My Girlfriends Birthday