\documentclass[10pt,a4paper]{article} % Packages \usepackage{fancyhdr} % For header and footer \usepackage{multicol} % Allows multicols in tables \usepackage{tabularx} % Intelligent column widths \usepackage{tabulary} % Used in header and footer \usepackage{hhline} % Border under tables \usepackage{graphicx} % For images \usepackage{xcolor} % For hex colours %\usepackage[utf8x]{inputenc} % For unicode character support \usepackage[T1]{fontenc} % Without this we get weird character replacements \usepackage{colortbl} % For coloured tables \usepackage{setspace} % For line height \usepackage{lastpage} % Needed for total page number \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{Gian David} \pdfinfo{ /Title (ddm.pdf) /Creator (Cheatography) /Author (Gian David) /Subject (DDM Cheat Sheet) } % Lengths and widths \addtolength{\textwidth}{6cm} \addtolength{\textheight}{-1cm} \addtolength{\hoffset}{-3cm} \addtolength{\voffset}{-2cm} \setlength{\tabcolsep}{0.2cm} % Space between columns \setlength{\headsep}{-12pt} % Reduce space between header and content \setlength{\headheight}{85pt} % If less, LaTeX automatically increases it \renewcommand{\footrulewidth}{0pt} % Remove footer line \renewcommand{\headrulewidth}{0pt} % Remove header line \renewcommand{\seqinsert}{\ifmmode\allowbreak\else\-\fi} % Hyphens in seqsplit % This two commands together give roughly % the right line height in the tables \renewcommand{\arraystretch}{1.3} \onehalfspacing % Commands \newcommand{\SetRowColor}[1]{\noalign{\gdef\RowColorName{#1}}\rowcolor{\RowColorName}} % Shortcut for row colour \newcommand{\mymulticolumn}[3]{\multicolumn{#1}{>{\columncolor{\RowColorName}}#2}{#3}} % For coloured multi-cols \newcolumntype{x}[1]{>{\raggedright}p{#1}} % New column types for ragged-right paragraph columns \newcommand{\tn}{\tabularnewline} % Required as custom column type in use % Font and Colours \definecolor{HeadBackground}{HTML}{333333} \definecolor{FootBackground}{HTML}{666666} \definecolor{TextColor}{HTML}{333333} \definecolor{DarkBackground}{HTML}{A3A3A3} \definecolor{LightBackground}{HTML}{F3F3F3} \renewcommand{\familydefault}{\sfdefault} \color{TextColor} % Header and Footer \pagestyle{fancy} \fancyhead{} % Set header to blank \fancyfoot{} % Set footer to blank \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}} } \end{tabulary} \columnbreak \begin{tabulary}{11cm}{L} \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{DDM Cheat Sheet}}}} \\ \normalsize{by \textcolor{DarkBackground}{Gian David} via \textcolor{DarkBackground}{\uline{cheatography.com/122093/cs/23498/}}} \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}Gian David \\ \uline{cheatography.com/gian-david} \\ \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 25th June, 2020.\\ Page {\thepage} of \pageref{LastPage}. \end{tabulary} \vfill \columnbreak \begin{tabulary}{5.8cm}{L} \SetRowColor{FootBackground} \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Sponsor}} \\ \SetRowColor{white} \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} \SetRowColor{DarkBackground} \mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Trigger Info}} \tn % Row 0 \SetRowColor{LightBackground} \mymulticolumn{1}{x{5.377cm}}{{\bf{Allgemein}}} \tn % Row Count 1 (+ 1) % Row 1 \SetRowColor{white} \mymulticolumn{1}{x{5.377cm}}{Benutzen das ECA Prinzip.} \tn % Row Count 2 (+ 1) % Row 2 \SetRowColor{LightBackground} \mymulticolumn{1}{x{5.377cm}}{Werden für DDL, DML und Serveroperationen verwendet} \tn % Row Count 4 (+ 2) % Row 3 \SetRowColor{white} \mymulticolumn{1}{x{5.377cm}}{{\bf{Timing}}} \tn % Row Count 5 (+ 1) % Row 4 \SetRowColor{LightBackground} \mymulticolumn{1}{x{5.377cm}}{BEFORE} \tn % Row Count 6 (+ 1) % Row 5 \SetRowColor{white} \mymulticolumn{1}{x{5.377cm}}{AFTER} \tn % Row Count 7 (+ 1) % Row 6 \SetRowColor{LightBackground} \mymulticolumn{1}{x{5.377cm}}{INSTEAD OF (nicht in SQL-1999)} \tn % Row Count 8 (+ 1) % Row 7 \SetRowColor{white} \mymulticolumn{1}{x{5.377cm}}{{\bf{Granularit{\"a}t}}} \tn % Row Count 9 (+ 1) % Row 8 \SetRowColor{LightBackground} \mymulticolumn{1}{x{5.377cm}}{STATEMENT} \tn % Row Count 10 (+ 1) % Row 9 \SetRowColor{white} \mymulticolumn{1}{x{5.377cm}}{ROW} \tn % Row Count 11 (+ 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}{Trigger Code}} \tn \SetRowColor{LightBackground} \mymulticolumn{1}{x{5.377cm}}{{\bf{{\emph{Syntax}}}} \newline {\bf{CREATE}} {[}{\bf{OR REPLACE}}{]} {\bf{TRIGGER}} tname \newline \{{\bf{BEFORE}} | {\bf{AFTER}}\} events \newline {[}{\bf{WHEN}} (condition){]} \newline pl/sql\_block \newline \newline {\bf{{\emph{Events}}}} \newline \{{\bf{DELETE}}|{\bf{INSERT}}|{\bf{UPDATE}} {[}{\bf{OF column}} {[},{\bf{column}}{]}...{]}\} \newline {[}{\bf{OR}} \{{\bf{DELETE}}|{\bf{INSERT}}|{\bf{UPDATE}} {[}{\bf{OF column}} {[}, {\bf{column}}{]}... {]}\}{]}... \newline {\bf{ON table}} {[}{\bf{FOR EACH ROW}}{]}} \tn \hhline{>{\arrayrulecolor{DarkBackground}}-} \end{tabularx} \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}{Dist. Design}} \tn % Row 0 \SetRowColor{LightBackground} \mymulticolumn{2}{x{5.377cm}}{{\bf{Korrektheit der Fragmentierung}}} \tn % Row Count 1 (+ 1) % Row 1 \SetRowColor{white} Vollst{\"a}ndigkeit & Wenn R in die Fragmente R1, R2, ..., Rn zerlegt ist, müssen {\bf{alle Elemente in den Fragmenten enthalten sein}}. \tn % Row Count 7 (+ 6) % Row 2 \SetRowColor{LightBackground} Rekonstrierbarkeit & Wenn R in die Fragmente R1, R2, ..., Rn zerlegt ist, muss es {\bf{relationale Operationen geben, um R zu rekonstrieren}}. \tn % Row Count 13 (+ 6) % Row 3 \SetRowColor{white} Disjunktheit & Wenn R in die Fragmente R1, R2, ..., Rn zerlegt ist, darf es {\bf{keine unn{\"o}tige Redundanz geben}}. \tn % Row Count 18 (+ 5) % Row 4 \SetRowColor{LightBackground} Vollst{\"a}ndigkeit einer Menge von {\bf{simple predicates}} & Eine Menge von {\emph{simple predicates}} ist genau dann vollst{\"a}ndig, wenn auf jedes Tupel im gleichen Fragment von allen Anwendungen mit der gleichen H{\"a}ufigkeit zugegriffen wird. \tn % Row Count 27 (+ 9) % Row 5 \SetRowColor{white} Minimalit{\"a}t einer Menge von {\bf{simple predicates}} & Wird durch ein {\emph{simple predicate}} ein Fragment weiter aufgeteilt, dann muss es mindestens eine Anwendung geben, die auf diese Fragmente verschieden zugreift.\{\{nl\}\}Ein simple predicate soll also relevant sein für die Bestimmung einer Fragmentierung.\{\{nl\}\}Sind alle simple predicate eine Menge P relevant, dann ist P minimal \tn % Row Count 44 (+ 17) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{p{0.4977 cm} x{4.4793 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{PHF Algorithmus}} \tn % Row 0 \SetRowColor{LightBackground} 1. & Finde eine Menge von {\emph{simple predicates}}, die vollst{\"a}ndig und minimal ist. \tn % Row Count 3 (+ 3) % Row 1 \SetRowColor{white} 2. & Bilde die (exponentiale) Menge der {\emph{minterm predicates}}. \tn % Row Count 5 (+ 2) % Row 2 \SetRowColor{LightBackground} 3. & Bestimme eine Menge von Implikationen unter den {\emph{simple predicates}}. \tn % Row Count 7 (+ 2) % Row 3 \SetRowColor{white} 4. & Eliminiere s{\"a}mtliche {\emph{minterm predicates}}, die den Implikationen widersprechen. \tn % Row Count 10 (+ 3) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{x{1.09494 cm} x{3.88206 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Akronyme}} \tn % Row 0 \SetRowColor{LightBackground} Akronym & Bedeutung \tn % Row Count 1 (+ 1) % Row 1 \SetRowColor{white} DDL & Data Definition Language \tn % Row Count 2 (+ 1) % Row 2 \SetRowColor{LightBackground} DHF & Derived/Abgeleitete horizontale Fragmentierung \tn % Row Count 4 (+ 2) % Row 3 \SetRowColor{white} DML & Data Manipulation Language \tn % Row Count 5 (+ 1) % Row 4 \SetRowColor{LightBackground} ECA Prinzip & Event, Condition, Action \tn % Row Count 7 (+ 2) % Row 5 \SetRowColor{white} HF & Horizontale Fragmentierung (horizontal schneiden) \tn % Row Count 9 (+ 2) % Row 6 \SetRowColor{LightBackground} MF & Gemischte Fragmentierung \tn % Row Count 10 (+ 1) % Row 7 \SetRowColor{white} PHF & Prim{\"a}re horizontale Fragmentierung \tn % Row Count 12 (+ 2) % Row 8 \SetRowColor{LightBackground} VF & Vertikale Fragmentierung (vertikal schneiden) \tn % Row Count 14 (+ 2) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{x{2.09034 cm} x{2.88666 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Glossar}} \tn % Row 0 \SetRowColor{LightBackground} Minterm Predicate & Verkettung mehrerer Simple Predicates \tn % Row Count 2 (+ 2) % Row 1 \SetRowColor{white} Simple Predicate & Vergleich eines Attributes mit einem Wert \tn % Row Count 4 (+ 2) % Row 2 \SetRowColor{LightBackground} Minterm Selectivity sel(\textasciicircum{}m\textasciicircum{}i) & Anzahl Tupel, die mit dem Minterm Predicate \textasciicircum{}m\textasciicircum{}i ausgew{\"a}hlt werden \tn % Row Count 7 (+ 3) % Row 3 \SetRowColor{white} Access Frequency acc(\textasciicircum{}m\textasciicircum{}i) & H{\"a}ufigkeit mit der Anwendungen auf Daten mit dem Minterm \textasciicircum{}m\textasciicircum{}i zugreifen \tn % Row Count 11 (+ 4) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{X} \SetRowColor{DarkBackground} \mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{PL/SQL Syntax}} \tn \SetRowColor{LightBackground} \mymulticolumn{1}{x{5.377cm}}{{\bf{{\emph{Prinzip}}}} \newline {\bf{DECLARE}} \newline Deklarationsteil \newline {\bf{BEGIN}} \newline Programmteil \newline {\bf{EXCEPTION}} \newline Ausnamebehandlung \newline {\bf{END}}; \newline \newline {\bf{{\emph{Zuweisng}}}} \newline variable := expression; \newline \newline {\bf{{\emph{im Deklarationsteil}}}} \newline {\bf{DECLARE}} \newline last\_name {\bf{VARCHAR2}}(30) := 'Wyss'; \newline first\_name {\bf{VARCHAR2}}(25) := 'Bernhard'; \newline \newline {\bf{{\emph{If - then}}}} \newline {\bf{IF}} condition {\bf{THEN}} \newline ... \newline {\bf{END IF}}; \newline \newline {\bf{{\emph{If - then - else}}}} \newline {\bf{IF}} condition {\bf{THEN}} \newline ... \newline {\bf{ELSE}} \newline ... \newline {\bf{END IF}}; \newline \newline {\bf{{\emph{If - then - elsif}}}} \newline {\bf{IF}} condition {\bf{THEN}} \newline ... \newline {\bf{ELSIF}} condition {\bf{THEN}} \newline ... \newline {\bf{ELSE}} \newline ... \newline {\bf{END IF}}; \newline \newline {\bf{{\emph{While Schleife}}}} \newline {\bf{While}} condition {\bf{LOOP}} \newline ... \newline {\bf{END LOOP}} \newline {\bf{For Schleife}} \newline {\bf{FOR}} counter {\bf{IN}} \seqsplit{lower\_bound..higher\_bound} {\bf{LOOP}} \newline ... \newline {\bf{END LOOP}}} \tn \hhline{>{\arrayrulecolor{DarkBackground}}-} \end{tabularx} \par\addvspace{1.3em} % That's all folks \end{multicols*} \end{document}