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%\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 (oracle-xml-support.pdf)
  /Creator (Cheatography)
  /Author (Jianmin Feng (taotao))
  /Subject (Oracle XML support Cheat Sheet)
}

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\fancyhead[L]{
\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{C}
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    \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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\begin{tabulary}{11cm}{L}
    \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{Oracle XML support Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{Jianmin Feng (taotao)} via \textcolor{DarkBackground}{\uline{cheatography.com/79308/cs/19476/}}}
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\noindent
\begin{multicols}{3}
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  \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 1st May, 2020.\\
   Page {\thepage} of \pageref{LastPage}.
\end{tabulary}
\vfill
\columnbreak
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  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Sponsor}}  \\
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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*}{2}

\begin{tabularx}{8.4cm}{p{0.8 cm} p{0.8 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Why Oracle XML}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{8.4cm}}{} \tn 
% Row Count 0 (+ 0)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{4.96 cm} x{3.04 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{XML}}  \tn
% Row 0
\SetRowColor{LightBackground}
Extensible Markup Language & User defined tags \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
\mymulticolumn{2}{x{8.4cm}}{tags associated w/ the storage of data} \tn 
% Row Count 3 (+ 1)
% Row 2
\SetRowColor{LightBackground}
xml:Nothing but the presentation of data & HTML:present of web page \tn 
% Row Count 5 (+ 2)
% Row 3
\SetRowColor{white}
\mymulticolumn{2}{x{8.4cm}}{syntax} \tn 
% Row Count 6 (+ 1)
% Row 4
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{8.4cm}}{\textless{}?xml version="1.0" encoding="ETF-8"?\textgreater{}} \tn 
% Row Count 7 (+ 1)
% Row 5
\SetRowColor{white}
\mymulticolumn{2}{x{8.4cm}}{tags: \textless{}Product\textgreater{} .... \textless{}/Product\textgreater{}} \tn 
% Row Count 8 (+ 1)
% Row 6
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{8.4cm}}{tags: case sensitive, attribute,val is not require} \tn 
% Row Count 9 (+ 1)
% Row 7
\SetRowColor{white}
free tool: html-kit & tag align, indent etc \tn 
% Row Count 11 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{3.76 cm} x{4.24 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Oracle XML DB}}  \tn
% Row 0
\SetRowColor{LightBackground}
stand database feature & native support by XMLType \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
XMLPath  and XQuery & XML\textless{}-\textgreater{}relational data \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{8.4cm}}{File repository} \tn 
% Row Count 5 (+ 1)
% Row 3
\SetRowColor{white}
\mymulticolumn{2}{x{8.4cm}}{XMLType limitations} \tn 
% Row Count 6 (+ 1)
% Row 4
\SetRowColor{LightBackground}
performance Hit & used only when required \tn 
% Row Count 8 (+ 2)
% Row 5
\SetRowColor{white}
\mymulticolumn{2}{x{8.4cm}}{new API and design} \tn 
% Row Count 9 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{3.04 cm} x{4.96 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Relational data -\textgreater{} XML}}  \tn
% Row 0
\SetRowColor{LightBackground}
XMLELEMNT & get one XMLType instance \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
\seqsplit{XMLType.getcolbval} & char format of xmltype data \tn 
% Row Count 3 (+ 2)
% Row 2
\SetRowColor{LightBackground}
XMLAttributes & set attribute \tn 
% Row Count 4 (+ 1)
% Row 3
\SetRowColor{white}
XMLForest & deal with col \tn 
% Row Count 5 (+ 1)
% Row 4
\SetRowColor{LightBackground}
XMLAgg & deal wit row \tn 
% Row Count 6 (+ 1)
% Row 5
\SetRowColor{white}
\seqsplit{XMLElent(XMLForest)} & get parent tag for group of col \tn 
% Row Count 8 (+ 2)
% Row 6
\SetRowColor{LightBackground}
XMLPi & xml processing instruction \tn 
% Row Count 10 (+ 2)
% Row 7
\SetRowColor{white}
XMLCommnet & add comment line \tn 
% Row Count 11 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{DBMS\_XMLGen}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{-{}-avoid complex syntax of using XML function to create xml doc \newline -{}- create object view:simplify sql \newline  CREATE OR REPLACE VIEW VIEW\_NAME OF OBJECT\_TYPE WITH OBJECT IDENTIFIER (COLUMN(s)) as SELECT \newline -{}-using dbms\_xmlgen to generate file and save \newline -{}-directory: pre-defined \& ALL CAPS \newline out\_file  utl\_file.file\_type; \newline out\_file := utl\_file.fopen ('MY\_XML\_FILES','file.xml','W'); \newline  \newline QueryContext        dbms\_xmlgen.ctxhandle; \newline QueryContext := dbms\_xmlgen.newcontext ('sql\_query'); \newline              \newline dbms\_xmlgen.setrowsettag (QueryContext, 'xxx'); \newline dbms\_xmlgen.setrowtag (QueryContext, 'xxx'); \newline      \newline my\_clob := \seqsplit{dbms\_xmlgen.getxml(QueryContext);} \newline  \newline -{}-write that XML to our external file \newline utl\_file.put (out\_file, my\_clob); \newline  \newline utl\_file.fclose (out\_file); \newline dbms\_xmlgen.closecontext(QueryContext);} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{5.28 cm} x{2.72 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{xml -{}-\textgreater{} relational table}}  \tn
% Row 0
\SetRowColor{LightBackground}
external.xml file & xmltype col type \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
\mymulticolumn{2}{x{8.4cm}}{get external file into col: xmltype(bfilename('DIR",'fname.xml")} \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{8.4cm}}{Query xml col} \tn 
% Row Count 5 (+ 1)
% Row 3
\SetRowColor{white}
extract(xml\_doc,'Path') & return xml \tn 
% Row Count 6 (+ 1)
% Row 4
\SetRowColor{LightBackground}
extract(xml\_doc,'Path/text()') & return value only \tn 
% Row Count 8 (+ 2)
% Row 5
\SetRowColor{white}
existnode(xml\_doc,'path').getdtringval & same as text() \tn 
% Row Count 10 (+ 2)
% Row 6
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{8.4cm}}{} \tn 
% Row Count 10 (+ 0)
% Row 7
\SetRowColor{white}
existsnode(xml\_doc, 'path') & if exists =1, else 0 \tn 
% Row Count 12 (+ 2)
% Row 8
\SetRowColor{LightBackground}
dot notation & nested element \tn 
% Row Count 14 (+ 2)
% Row 9
\SetRowColor{white}
\mymulticolumn{2}{x{8.4cm}}{{[}i{]} to access array element} \tn 
% Row Count 15 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{8.4cm}}{to avoid access violation error(11g): \newline select XMLSERIALIZE (CONTENT xmldocument AS CLOB INDENT SIZE = 2) from xmldocuments}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{XML\_TABLE}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{VARIABLE v\_job VARCHAR2(10); \newline EXEC :v\_job := 'CLERK'; \newline  \newline SELECT xt.{\emph{ \newline FROM   xml\_tab x, \newline        XMLTABLE('/employees/employee{[}job=\$job{]}' \newline          PASSING x.xml\_data, :v\_job AS "job" \newline          COLUMNS  \newline            empno     VARCHAR2(4)  PATH 'empno', \newline            ename     VARCHAR2(10) PATH 'ename', \newline            job       VARCHAR2(9)  PATH 'job', \newline            hiredate  VARCHAR2(11) PATH 'hiredate, \newline            id     VARCHAR2(10) PATH '@id',' \newline          ) xt; \newline -{}- :v\_job AS "job"  \newline -{}-The variable must be aliases using AS and double quoted to make sure the name and case matches that of the variable in the XPath expression. \newline  \newline -{}- \newline SELECT x.xml\_data.getClobVal() \newline FROM   xml\_tab x; \newline  \newline -{}-nested XML\_table \newline SELECT xt.}} \newline FROM   xml\_tab x, \newline     \seqsplit{XMLTABLE('/departments/department'} \newline     PASSING x.xml\_data \newline      COLUMNS  \newline          deptno     VARCHAR2(4)  PATH 'dept\_no', \newline          \seqsplit{XMLTABLE('/employees/employee'} \newline          PASSING dd.employees \newline          COLUMNS \newline              empno varchar2(4) PATH 'emp\_no', \newline              ename  varchar2(4) PATH 'emp\_name' \newline          ) \newline  ) xt \newline  \newline -{}-form xmltype in variable \newline PASSING xmltype(v\_varchar2) \newline PASSING v\_xml} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{3.04 cm} x{3.8 cm} p{0.76 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{3}{x{8.4cm}}{\bf\textcolor{white}{XDB}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{3}{x{8.4cm}}{{\bf{Resource\_view}}} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
res & xmltype &  \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
any\_path & varchar2 &  \tn 
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
resid & raw &  \tn 
% Row Count 4 (+ 1)
% Row 4
\SetRowColor{LightBackground}
\mymulticolumn{3}{x{8.4cm}}{{\bf{Path\_view}}} \tn 
% Row Count 5 (+ 1)
% Row 5
\SetRowColor{white}
path & varchar2 &  \tn 
% Row Count 6 (+ 1)
% Row 6
\SetRowColor{LightBackground}
res & xmltype &  \tn 
% Row Count 7 (+ 1)
% Row 7
\SetRowColor{white}
link & xmltype &  \tn 
% Row Count 8 (+ 1)
% Row 8
\SetRowColor{LightBackground}
resid & raw &  \tn 
% Row Count 9 (+ 1)
% Row 9
\SetRowColor{white}
\mymulticolumn{3}{x{8.4cm}}{{\bf{xml function}}} \tn 
% Row Count 10 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}---}
\end{tabularx}
\par\addvspace{1.3em}


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

\end{document}