Header and footer for `scrbook` mimicking `memoir`

Question

Consider this MWE.

\documentclass[b5paper,twoside,12pt]{scrbook}
\usepackage{lipsum}

\begin{document}
\chapter{One}
\lipsum[1]
\section{Introduction}
\lipsum[1-20]
\end{document}

I am using scrbook class for my document. I want the header and footer as if I use memoir or book class:

1. Chapter's first page: page number at the center bottom
2. Even page: page number at the top left, chapter title at the top right
3. Odd page: page number at the top right, section title at the top left

How can I do this?

Answer 1

Load package scrlayer-scrpage which is part of the KOMA-Script bundle:

\usepackage[
  automark,
  markcase=upper
]{scrlayer-scrpage}
\clearpairofpagestyles
\ihead{\headmark}
\ohead{\pagemark}
\cfoot[\pagemark]{}

Code:

\documentclass[b5paper,twoside,12pt]{scrbook}

\usepackage[
  automark,
  markcase=upper
]{scrlayer-scrpage}
\clearpairofpagestyles
\ihead{\headmark}
\ohead{\pagemark}
\cfoot[\pagemark]{}

\usepackage{lipsum}% only for dummy text
\begin{document}
\chapter{One}
\lipsum[1]
\section{Introduction}
\lipsum[1-20]
\end{document}