Discussion on: SQL: Where spaces may not matter

[Martín Marqués]

I'd be more than surprised if Oracle would not distinguish 'admin' from 'admin ' on insert, but I don't have an Oracle server handy to test. I can assure that this doesn't happen with Postgres (tested on 9.4 - 10)

Very interesting findings. I hope t never bump into issues like that :)

[Antony Garand]

I'm not that familiar with Oracle but based on this sqlFiddle, I can confirm to you that this does work:

sqlfiddle.com/#!4/c0be1c/19813

[Ross Henderson]

Ran in Oracle SQLDev:

begin
    if 'admin' = 'admin ' then dbms_output.put_line(1);
    else dbms_output.put_line(0);
    end if;
end;

Result: 1

It is correct that Oracle automatically trims leading and trailing spaces.

Edit: I should mention that this is on 18.2