Add seconds into timestamp

Question

I want to add seconds into the given timestamp.

Example:

Given time:

Declare
       t1 timestamp = '1900-01-01 02:00:00';

Now I want to add some 20 seconds into the given time.

In SQL Server I have used DATEADD. But I searched and come to know that there is no such function provided by PostgreSQL.

What will be the solution?

Answer 1

Just add the 20 seconds:

t1 := t1 + interval '20' second;

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The assignment operator in PL/pgSQL is :=. The = is only there for backward compatibility. Don't use it.