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How to INSERT INTO with SELECT and default values

Hi friends, can't find related material online.

Question, I have a table with column a, b and c, a is a sequence and b is defaulted to be say 0.
I take column c from a SELECT clause.

How do I do this kind of things?

I tried:

INSERT INTO table
SELECT
default,
default,
c
FROM whatever

This doesn't work. Any idea? Thanks!

Answers

  • It seems that I cannot SELECT default. If I can't do that how am I supposed to INSERT into any table with less columns?

  • Just specify the columns into which you actually want to insert something:

    INSERT INTO the_table(
     c
    )
    SELECT
      c
    FROM whatever;
    
  • @marcothesane said:
    Just specify the columns into which you actually want to insert something:

    INSERT INTO the_table(
     c
    )
    SELECT
      c
    FROM whatever;
    

    Thanks, it works! Perfect~~

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