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\usepackage{seqsplit}           % Splits long words.
%\usepackage{opensans}          % Can't make this work so far. Shame. Would be lovely.
\usepackage[normalem]{ulem}     % For underlining links
% Most of the following are not required for the majority
% of cheat sheets but are needed for some symbol support.
\usepackage{amsmath}            % Symbols
\usepackage{MnSymbol}           % Symbols
\usepackage{wasysym}            % Symbols
%\usepackage[english,german,french,spanish,italian]{babel}              % Languages

% Document Info
\author{Jianmin Feng (taotao)}
\pdfinfo{
  /Title (pl-sql-exceptions.pdf)
  /Creator (Cheatography)
  /Author (Jianmin Feng (taotao))
  /Subject (PL/SQL Exceptions Cheat Sheet)
}

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% Commands
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% Header and Footer
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\fancyhead[L]{
\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{C}
    \SetRowColor{DarkBackground}
    \vspace{-7pt}
    {\parbox{\dimexpr\textwidth-2\fboxsep\relax}{\noindent
        \hspace*{-6pt}\includegraphics[width=5.8cm]{/web/www.cheatography.com/public/images/cheatography_logo.pdf}}
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\columnbreak
\begin{tabulary}{11cm}{L}
    \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{PL/SQL Exceptions Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{Jianmin Feng (taotao)} via \textcolor{DarkBackground}{\uline{cheatography.com/79308/cs/19331/}}}
\end{tabulary}
\end{multicols}}

\fancyfoot[L]{ \footnotesize
\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{LL}
  \SetRowColor{FootBackground}
  \mymulticolumn{2}{p{5.377cm}}{\bf\textcolor{white}{Cheatographer}}  \\
  \vspace{-2pt}Jianmin Feng (taotao) \\
  \uline{cheatography.com/taotao} \\
  \end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}}  \\
   \vspace{-2pt}Not Yet Published.\\
   Updated 11th April, 2019.\\
   Page {\thepage} of \pageref{LastPage}.
\end{tabulary}
\vfill
\columnbreak
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  \vspace{-5pt}
  %\includegraphics[width=48px,height=48px]{dave.jpeg}
  Measure your website readability!\\
  www.readability-score.com
\end{tabulary}
\end{multicols}}




\begin{document}
\raggedright
\raggedcolumns

% Set font size to small. Switch to any value
% from this page to resize cheat sheet text:
% www.emerson.emory.edu/services/latex/latex_169.html
\footnotesize % Small font.

\begin{multicols*}{3}

\begin{tabularx}{5.377cm}{x{1.79172 cm} x{3.18528 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{PL SQL error handling}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{exception propagates outward to each successive block , until properly handled or presented to client finally} \tn 
% Row Count 3 (+ 3)
% Row 1
\SetRowColor{white}
EXCEPTION & without it,error present to client \tn 
% Row Count 5 (+ 2)
% Row 2
\SetRowColor{LightBackground}
WHEN \seqsplit{exception\_name} & trap an exception \tn 
% Row Count 7 (+ 2)
% Row 3
\SetRowColor{white}
THEN .... & handle an exception \tn 
% Row Count 8 (+ 1)
% Row 4
\SetRowColor{LightBackground}
RAISE & raise the current except \tn 
% Row Count 9 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Types of Exception}}  \tn
% Row 0
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\mymulticolumn{1}{x{5.377cm}}{Named System Exceptions} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{Unnamed System Exceptions} \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{User-defined Exceptions} \tn 
% Row Count 3 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.59264 cm} x{3.38436 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Named System Exceptions}}  \tn
% Row 0
\SetRowColor{LightBackground}
\seqsplit{NO\_DATA\_FOUND} & SELECT...INTO with no returned \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
\mymulticolumn{2}{x{5.377cm}}{ZERO\_DIVIDE} \tn 
% Row Count 3 (+ 1)
% Row 2
\SetRowColor{LightBackground}
\seqsplit{TOO\_MANY\_ROWS} & fetch \textgreater{}1 row into a record/var \tn 
% Row Count 5 (+ 2)
% Row 3
\SetRowColor{white}
\seqsplit{INVALID\_CURSOR} & cursor closed \tn 
% Row Count 7 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
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\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.18988 cm} x{2.78712 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Unamed system exceptions}}  \tn
% Row 0
\SetRowColor{LightBackground}
WHEN OTHERS THEN & OTHERS handler used \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
to handle explicitly & exception\_name EXCEPTION; \tn 
% Row Count 3 (+ 2)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{PRAGMA EXCEPTION\_INIT (exception\_name, Err\_code);} \tn 
% Row Count 4 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.83689 cm} x{2.14011 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{User defined exception}}  \tn
% Row 0
\SetRowColor{LightBackground}
my\_exception EXCEPTION; & raise my\_exception; \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
pragma \seqsplit{exception\_init(my\_exception},-20001); & assign error code \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
\seqsplit{RAISE\_APPLICATION\_ERROR(code},msg) & assign a user friendly message \tn 
% Row Count 6 (+ 2)
% Row 3
\SetRowColor{white}
WHEN my\_exception THEN & trap and handle \tn 
% Row Count 7 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{Explicitly declared in declaration ,raised in execution section and handled in Exception section}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}--}
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\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.4885 cm} x{2.4885 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{\seqsplit{raise\_application\_error(code}, msg)}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{predefined oracle procedure for user raise error with code and messag} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
1) error code range(required) & -20,000 \textasciitilde{} -20,999 \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
2) message & varchar2(2000) \tn 
% Row Count 5 (+ 1)
% Row 3
\SetRowColor{white}
3)boolean: default false-added to top of list of all errors & true: adds the error to the current stack \tn 
% Row Count 8 (+ 3)
% Row 4
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{from DBMS\_STANDARD, no name provided, handled with OTHERS handler. Uncommitted session tx rollback} \tn 
% Row Count 10 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
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\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{\seqsplit{raise\_application\_error} with handler}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{DECLARE \newline   n\_salary NUMBER; \newline  {\bf{ sal\_high   EXCEPTION;}} \newline   {\bf{pragma \seqsplit{exception\_init(sal\_high},-20001);}} \newline BEGIN \newline   SELECT salary INTO n\_salary  \newline   FROM employees  \newline   WHERE \seqsplit{employee\_id=:employee\_id;} \newline  \newline   IF n\_salary \textgreater{}10000 THEN \newline     {\bf{ raise\_application\_error}} \newline           {\bf{ (-20001,'Salary is high');}} \newline   END IF; \newline EXCEPTION \newline    {\bf{WHEN sal\_high THEN}} \newline       \seqsplit{dbms\_output.put\_line(SQLCODE);} \newline       \seqsplit{dbms\_output.put\_line(sqlerrm);} \newline END;} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{raise; //raise current error}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}


% That's all folks
\end{multicols*}

\end{document}