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% Most of the following are not required for the majority
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% Document Info
\author{chunyan}
\pdfinfo{
  /Title (sql-retrieval-functions-2.pdf)
  /Creator (Cheatography)
  /Author (chunyan)
  /Subject (SQL retrieval functions 2 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{SQL retrieval functions 2 Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{chunyan} via \textcolor{DarkBackground}{\uline{cheatography.com/53782/cs/14470/}}}
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\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}chunyan \\
  \uline{cheatography.com/chunyan} \\
  \end{tabulary}
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\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}}  \\
   \vspace{-2pt}Published 25th January, 2018.\\
   Updated 25th January, 2018.\\
   Page {\thepage} of \pageref{LastPage}.
\end{tabulary}
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  %\includegraphics[width=48px,height=48px]{dave.jpeg}
  Measure your website readability!\\
  www.readability-score.com
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\end{multicols}}




\begin{document}
\raggedright
\raggedcolumns

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% 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}{x{3.52 cm} x{4.48 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Date functions}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{add\_months \{\{nl\}\}(d, n)}} & Date d plus n months \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
{\bf{months\_between \{\{nl\}\}(d, e)}} & Months between dates d and e (d-e) \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
{\bf{last\_day (d)}} & Last day of the month containing date d \tn 
% Row Count 6 (+ 2)
% Row 3
\SetRowColor{white}
{\bf{next\_day \{\{nl\}\}(d, weekday)}} & the first weekday (mon, etc.) after d \tn 
% Row Count 8 (+ 2)
% Row 4
\SetRowColor{LightBackground}
{\bf{new\_time \{\{nl\}\}(d, z1, z2)}} & Convert date/time from time zone z1 to z2 \tn 
% Row Count 10 (+ 2)
% Row 5
\SetRowColor{white}
{\bf{round \{\{nl\}\}(d{[}, fmt{]})}} & d rounded on fmt; defualt midnitht \tn 
% Row Count 12 (+ 2)
% Row 6
\SetRowColor{LightBackground}
{\bf{trunc \{\{nl\}\}(d{[}, fmt{]})}} & d truncated on fmt; defualt: midnight \tn 
% Row Count 14 (+ 2)
% Row 7
\SetRowColor{white}
{\bf{extract \{\{nl\}\}(c from d)}} & Extract date/time component c from expression d \tn 
% Row Count 17 (+ 3)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{4 cm} x{4 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{General functions}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{greatest (a, b, ...)}} & Greatest value \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
{\bf{least \{\{nl\}\}(a, b, ...)}} & Least value \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
{\bf{nullif \{\{nl\}\}(a, b)}} & NULL if a=b; otherwise a \tn 
% Row Count 6 (+ 2)
% Row 3
\SetRowColor{white}
{\bf{coalesce (a, b, ...)}} & The first NOT NULL argument; NULL if all are NULL \tn 
% Row Count 9 (+ 3)
% Row 4
\SetRowColor{LightBackground}
{\bf{NVL (x, y)}} & When x is NULL then y; else x \tn 
% Row Count 11 (+ 2)
% Row 5
\SetRowColor{white}
{\bf{NVL2 \{\{nl\}\}(x, y, z)}} & When x is not NULL then y, else z \tn 
% Row Count 13 (+ 2)
% Row 6
\SetRowColor{LightBackground}
{\bf{Case x \{\{nl\}\}...\{\{nl\}\}end}} & {\bf{when a1 then b1\{\{nl\}\}when a2 then b2...\{\{nl\}\}else y}} \tn 
% Row Count 16 (+ 3)
% Row 7
\SetRowColor{white}
{\bf{decode (x, \{\{nl\}\}a1, b1,\{\{nl\}\}a2, b2\{\{nl\}\}...\{\{nl\}\}{[}, y{]})}} & when x=a1 then b1\{\{nl\}\}when x=a2 then b2\{\{nl\}\}else y (or default: NULL) \tn 
% Row Count 20 (+ 4)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{4 cm} x{4 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Date functions: constants}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{date \{\{nl\}\}'yyyy-mm-dd'}} & date '2018-01-25' \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
{\bf{timestamp \{\{nl\}\}'yyyy-mm-dd \{\{nl\}\}hh24:mi:ss.ffffff' \{\{nl\}\}{[}at time zone '...'{]}}} & timestamp '2014-09-23 23:59:59.99999' at time zone 'CET' \tn 
% Row Count 7 (+ 5)
% Row 2
\SetRowColor{LightBackground}
{\bf{timestamp \{\{nl\}\}'yyyy-mm-dd \{\{nl\}\}hh24:mi:ss.ffffff \{\{nl\}\}\{+|-\}hh:mi'}} & timestamp '2014-08-21 23:59:59.99 -5:00' \tn 
% Row Count 11 (+ 4)
% Row 3
\SetRowColor{white}
{\bf{interval 'expr' \{\{nl\}\}\textless{}qualifier\textgreater{}}} & interval '1' year; interval '1 2:3' day to minute \tn 
% Row Count 14 (+ 3)
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\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{3.52 cm} x{4.48 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Sample function}}  \tn
% Row 0
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{\bf{sample (p)}} & p: percentage \tn 
% Row Count 1 (+ 1)
% Row 1
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{\bf{seed (n)}} & n: No. of the seed \tn 
% Row Count 2 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
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\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{4 cm} x{4 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Conversion functions}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{to\_char \{\{nl\}\}(n{[},fmt{]})}} & Convert number n to a string \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
{\bf{to\_char \{\{nl\}\}(d{[},fmt{]})}} & Convert date/time expression d to a string \tn 
% Row Count 5 (+ 3)
% Row 2
\SetRowColor{LightBackground}
{\bf{to\_number (t)}} & Convert string t to a number \tn 
% Row Count 7 (+ 2)
% Row 3
\SetRowColor{white}
{\bf{to\_binary\_\{\{nl\}\}float \{\{nl\}\}(e{[}, fmt{]})}} & Convert expression e to a floating-point number \tn 
% Row Count 10 (+ 3)
% Row 4
\SetRowColor{LightBackground}
{\bf{to\_binary\_\{\{nl\}\}double \{\{nl\}\}(e{[}, fmt{]})}} & Convert expression e to a double-precision, floating-\{\{nl\}\}point number \tn 
% Row Count 14 (+ 4)
% Row 5
\SetRowColor{white}
{\bf{to\_date \{\{nl\}\}(t{[}, fmt{]})}} & Convert string t to a date \tn 
% Row Count 16 (+ 2)
% Row 6
\SetRowColor{LightBackground}
{\bf{to\_\{\{nl\}\}yminterval \{\{nl\}\}(t)}} & Convert string to a YEAR TO MONTH interval \tn 
% Row Count 19 (+ 3)
% Row 7
\SetRowColor{white}
{\bf{to\_\{\{nl\}\}dsinterval \{\{nl\}\}(t)}} & Convert string t to a DAY TO SECOND interval \tn 
% Row Count 22 (+ 3)
% Row 8
\SetRowColor{LightBackground}
{\bf{to\_\{\{nl\}\}timestamp \{\{nl\}\}(t{[}, fmt{]})}} & Convert string to a timestamp \tn 
% Row Count 24 (+ 2)
% Row 9
\SetRowColor{white}
{\bf{cast \{\{nl\}\}(e as t)}} & Convert expression e to datatype t \tn 
% Row Count 26 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
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\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{2.204 cm} x{2.66 cm} x{2.736 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{3}{x{8.4cm}}{\bf\textcolor{white}{"fmt' for date functions and conversion functions}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{cc, scc}} & Century, with or without minus sign (BC) & Same \tn 
% Row Count 3 (+ 3)
% Row 1
\SetRowColor{white}
{\bf{{[}s{]}yyyy, {[}s{]}year, yyy, yy, y}} & Year (in various appearances) & Same \tn 
% Row Count 6 (+ 3)
% Row 2
\SetRowColor{LightBackground}
{\bf{iyyyy, iyy, iy, i}} & ISO year & Same \tn 
% Row Count 8 (+ 2)
% Row 3
\SetRowColor{white}
{\bf{bc, ad}} &  & BC/AC indicator \tn 
% Row Count 10 (+ 2)
% Row 4
\SetRowColor{LightBackground}
{\bf{q}} & Quarter & Same \tn 
% Row Count 11 (+ 1)
% Row 5
\SetRowColor{white}
{\bf{month}} & Month (full name) & Month name, padded with spaces to length 9 \tn 
% Row Count 14 (+ 3)
% Row 6
\SetRowColor{LightBackground}
{\bf{mon, mm, rm}} & Month (abbreviated name, numeric, Roman numerals) & Same \tn 
% Row Count 18 (+ 4)
% Row 7
\SetRowColor{white}
{\bf{iw, ww}} & (ISO) week number & Same \tn 
% Row Count 20 (+ 2)
% Row 8
\SetRowColor{LightBackground}
{\bf{w}} & Day of the week & Week number within the month \tn 
% Row Count 22 (+ 2)
% Row 9
\SetRowColor{white}
{\bf{ddd, dd, j}} & Day (of the \seqsplit{year/month/Julian} day) & Same \tn 
% Row Count 25 (+ 3)
% Row 10
\SetRowColor{LightBackground}
{\bf{day}} & Closest Sunday & Day name, padded with spaces to length 9 \tn 
% Row Count 28 (+ 3)
% Row 11
\SetRowColor{white}
{\bf{dy, d}} & Closest Sunday & Day name abbreviation (3 characters) \tn 
% Row Count 31 (+ 3)
\end{tabularx}
\par\addvspace{1.3em}

\vfill
\columnbreak
\begin{tabularx}{8.4cm}{x{2.204 cm} x{2.66 cm} x{2.736 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{3}{x{8.4cm}}{\bf\textcolor{white}{"fmt' for date functions and conversion functions (cont)}}  \tn
% Row 12
\SetRowColor{LightBackground}
{\bf{d}} & Closest Sunday & Day number within the week \tn 
% Row Count 2 (+ 2)
% Row 13
\SetRowColor{white}
{\bf{am, pm}} &  & AM/PM indicator \tn 
% Row Count 4 (+ 2)
% Row 14
\SetRowColor{LightBackground}
{\bf{hh,hh12, hh24}} & Hours & Same \tn 
% Row Count 6 (+ 2)
% Row 15
\SetRowColor{white}
{\bf{mi}} & Minutes & Same \tn 
% Row Count 7 (+ 1)
% Row 16
\SetRowColor{LightBackground}
{\bf{ss}} &  & Seconds \tn 
% Row Count 8 (+ 1)
% Row 17
\SetRowColor{white}
{\bf{sssss}} &  & Seconds after midnight \tn 
% Row Count 10 (+ 2)
% Row 18
\SetRowColor{LightBackground}
{\bf{/.,}} &  & Punctuation characters \tn 
% Row Count 12 (+ 2)
% Row 19
\SetRowColor{white}
{\bf{"..."}} &  & String between double quotes displayed within the date expression \tn 
% Row Count 17 (+ 5)
% Row 20
\SetRowColor{LightBackground}
{\bf{fm}} &  & Fill mode toggle \tn 
% Row Count 19 (+ 2)
% Row 21
\SetRowColor{white}
{\bf{th}} &  & Ordinal number \tn 
% Row Count 20 (+ 1)
% Row 22
\SetRowColor{LightBackground}
{\bf{sp}} &  & Spell-out number \tn 
% Row Count 22 (+ 2)
% Row 23
\SetRowColor{white}
{\bf{thsp,spth}} &  & \seqsplit{Spelled-ordinal} number \tn 
% Row Count 24 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}---}
\SetRowColor{LightBackground}
\mymulticolumn{3}{x{8.4cm}}{The conversion function formats are case-\{\{nl\}\}sensitive.}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}---}
\end{tabularx}
\par\addvspace{1.3em}


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

\end{document}