How to uninstall sample data with database from magento2?

Use Zypper from root shell:

zypper in gcc-c++

EDITED to try to automate. There are four commands \tuwave, \buwave, \tuline, and \buline. The t signifies "top" and the b signifies "bottom", depending on whether the squiggle or line are on top or bottom level. The wave commands take one argument signifying the characters to be underset with a wave. The line commands take two arguments, the first are the letters to output, and the second is a text string used to determine the length of the underline.

\documentclass{article}
\usepackage{ulem}
\usepackage{stackengine}
\let\tuwave\uwave
\newcommand\buwave[1]{\raisebox{-3pt}{\uwave{\raisebox{3pt}{#1}}}}
\newcommand\tuline[2]{\stackunder[.6ex]{#1}{\rule{\widthof{#2}}{.2ex}}}
\newcommand\buline[2]{\stackunder[1.2ex]{#1}{\rule{\widthof{#2}}{.2ex}}}
\parskip 1em
\def\useanchorwidth{T}
\def\stackalignment{l}
\def\stacktype{L}
\begin{document}
\buline{ab\tuwave{cd}ef}{abcd}\par
\tuline{ab}{abcd}\buwave{cdef}
\end{document}