\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{Hany Samir (hanysamir)}
\pdfinfo{
  /Title (mongodb-cheat-sheet-issr-master.pdf)
  /Creator (Cheatography)
  /Author (Hany Samir (hanysamir))
  /Subject (MongoDB  "issr Master" Cheat Sheet)
}

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% Commands
\newcommand{\SetRowColor}[1]{\noalign{\gdef\RowColorName{#1}}\rowcolor{\RowColorName}} % Shortcut for row colour
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\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{MongoDB  "issr Master" Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{Hany Samir (hanysamir)} via \textcolor{DarkBackground}{\uline{cheatography.com/198431/cs/41986/}}}
\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}Hany Samir (hanysamir) \\
  \uline{cheatography.com/hanysamir} \\
  \end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}}  \\
   \vspace{-2pt}Published 8th January, 2024.\\
   Updated 8th January, 2024.\\
   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*}{2}

\begin{tabularx}{8.4cm}{x{1.368 cm} x{2.812 cm} x{3.42 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{3}{x{8.4cm}}{\bf\textcolor{white}{Basinc MongoDB commands}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{Commmand}} & {\bf{Description}} & {\bf{Example}} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
mongod & start the mongo service & mongod -{}-dbpath /home/mongo -{}-logpath \seqsplit{/home/mongo/mongod}.log -{}-bind\_ip 0.0.0.0 \tn 
% Row Count 7 (+ 5)
% Row 2
\SetRowColor{LightBackground}
\seqsplit{mongosh} & command run mongodb shell & mongosh \tn 
% Row Count 9 (+ 2)
% Row 3
\SetRowColor{white}
show dbs & list databases & show dbs \tn 
% Row Count 11 (+ 2)
% Row 4
\SetRowColor{LightBackground}
use \seqsplit{db\_name} & Switch to database db & use company \tn 
% Row Count 13 (+ 2)
% Row 5
\SetRowColor{white}
db & show current database name & db \tn 
% Row Count 15 (+ 2)
% Row 6
\SetRowColor{LightBackground}
show \seqsplit{collections} & List current database collections & show collections \tn 
% Row Count 18 (+ 3)
\hhline{>{\arrayrulecolor{DarkBackground}}---}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{2.432 cm} x{2.584 cm} x{2.584 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{3}{x{8.4cm}}{\bf\textcolor{white}{Insert}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{syntax}} & {\bf{Description}} & {\bf{Example}} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
insertOne (data, options) & insert one document & db.people.insertOne(\{ "ssn":1, "name":"Ali","age":20\}) \tn 
% Row Count 7 (+ 5)
% Row 2
\SetRowColor{LightBackground}
insertMany({[}\{document1\},\{document2\}{]}) & insert many documents, square brackets are mandatory & "db.sales.insertMany({[}   \{ ""item"": ""abc"", ""price"": 10\},   \{ ""item"": ""xyz"", ""price"": 5 \} {]})" \tn 
% Row Count 15 (+ 8)
\hhline{>{\arrayrulecolor{DarkBackground}}---}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{2.052 cm} x{2.812 cm} x{2.736 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{3}{x{8.4cm}}{\bf\textcolor{white}{Delete}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{syntax}} & {\bf{Description}} & {\bf{Example}} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
\seqsplit{deleteOne(filter}, options) & delete the first matching document from collection & \seqsplit{db.project.deleteOne(} \{ "pnumber": 1 \} ) \tn 
% Row Count 6 (+ 4)
% Row 2
\SetRowColor{LightBackground}
\seqsplit{deleteMany(filter}, options) & delete all matching documents from the project collection & \seqsplit{db.project.deleteMany(} \{ "plocation": "Stafford" \} ) \tn 
% Row Count 11 (+ 5)
\hhline{>{\arrayrulecolor{DarkBackground}}---}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{2.812 cm} x{1.9 cm} x{2.888 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{3}{x{8.4cm}}{\bf\textcolor{white}{Update}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{syntax}} & {\bf{Description}} & {\bf{Example}} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
\seqsplit{updateOne(filter}, data, options) & update one document & db.sales.updateOne(\{"item":"abc"\}, \{ "\$set" : \{"price": 22\} \} ) \tn 
% Row Count 7 (+ 5)
% Row 2
\SetRowColor{LightBackground}
\seqsplit{updateMany(filter}, data, options) & update matching \seqsplit{documents.} & \seqsplit{db.sales.updateMany} ( \{ ""\_id"":\{""\$gte"":14, ""\$lte"":16\} \} ,     \{ \$unset : \{ ""price"" : "" ""\} \} ) \tn 
% Row Count 14 (+ 7)
\hhline{>{\arrayrulecolor{DarkBackground}}---}
\SetRowColor{LightBackground}
\mymulticolumn{3}{x{8.4cm}}{\$set to update the field value  \newline \$unset will remove the field}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}---}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{2.432 cm} x{2.28 cm} x{2.888 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{3}{x{8.4cm}}{\bf\textcolor{white}{Index}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{syntax}} & {\bf{Description}} & {\bf{Example}} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
\seqsplit{createIndex(} \{keys\} , \{options\} ) & Creates indexes on \seqsplit{collections.} & \seqsplit{db.project.createIndex(} \{ "pnumber": 1, "Pname": -1 \} ,     \{ "name": "pno\_name" , "unique": true\} ) \tn 
% Row Count 9 (+ 7)
% Row 2
\SetRowColor{LightBackground}
\seqsplit{dropIndex(index)} & Delete index & \seqsplit{db.project.dropIndex("pno\_name")} \tn 
% Row Count 12 (+ 3)
% Row 3
\SetRowColor{white}
\seqsplit{getIndexes()} & List indexes on collection. & \seqsplit{db.project.getIndexes()} \tn 
% Row Count 15 (+ 3)
\hhline{>{\arrayrulecolor{DarkBackground}}---}
\SetRowColor{LightBackground}
\mymulticolumn{3}{x{8.4cm}}{if index name was not specified withing options, the name will be generated automatically. \newline 1 = ascending order \newline -1 = descending order}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}---}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{2.204 cm} x{2.204 cm} x{3.192 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{3}{x{8.4cm}}{\bf\textcolor{white}{Find}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{syntax}} & {\bf{Description}} & {\bf{Example}} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
\seqsplit{findOne(filter}, options) & find first matching document & db.employee.findOne(\{"dno": 8\},\{"\_id":0,"fname":1,"lname":1\}) \tn 
% Row Count 6 (+ 4)
% Row 2
\SetRowColor{LightBackground}
\seqsplit{find(filter}, options) & find all matching documents & db.employee.find(\{"dno": 8\},\{"\_id":0,"fname":1,"lname":1\}) \tn 
% Row Count 10 (+ 4)
\hhline{>{\arrayrulecolor{DarkBackground}}---}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{1.976 cm} x{3.04 cm} x{2.584 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{3}{x{8.4cm}}{\bf\textcolor{white}{Query methods}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{syntax}} & {\bf{Description}} & {\bf{Example}} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
sort(\{field\_name:1 or -1\}) & find first matching document & \seqsplit{db.sales.find()}.sort(\{"price": 1\}) \tn 
% Row Count 4 (+ 3)
% Row 2
\SetRowColor{LightBackground}
limit(n) & Limits the number of documents & \seqsplit{db.sales.find().limit(3)} \tn 
% Row Count 6 (+ 2)
% Row 3
\SetRowColor{white}
skip(n) & Skips over the specified number of documents & \seqsplit{db.sales.find().skip(3)} \tn 
% Row Count 9 (+ 3)
\hhline{>{\arrayrulecolor{DarkBackground}}---}
\SetRowColor{LightBackground}
\mymulticolumn{3}{x{8.4cm}}{1 = ascending order \newline -1 = descending order}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}---}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{1.52 cm} x{3.04 cm} x{3.04 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{3}{x{8.4cm}}{\bf\textcolor{white}{Aggregation Pipeline}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{syntax}} & {\bf{Description}} & {\bf{Example}} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
\$group & The \$group stage separates documents into groups according to a "group key". The output is one document for each unique group key. & db.employee.aggregate({[} \{ "\$group" : \{ "\_id" : null, \seqsplit{"averageSalary":} \{ "\$avg": "\$salary" \} \} \} {]}) \tn 
% Row Count 11 (+ 9)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{3}{x{8.4cm}}{\{\{bt\}\}{\bf{Accumulator Operator }}} \tn 
% Row Count 12 (+ 1)
% Row 3
\SetRowColor{white}
 & \$avg & Returns an average of numerical values. \tn 
% Row Count 15 (+ 3)
% Row 4
\SetRowColor{LightBackground}
 & \$max & Returns the highest expression value for each group. \tn 
% Row Count 19 (+ 4)
% Row 5
\SetRowColor{white}
 & \$min & Returns the lowest expression value for each group. \tn 
% Row Count 23 (+ 4)
% Row 6
\SetRowColor{LightBackground}
 & \$sum & Returns a sum of numerical values. Ignores non-numeric values. \tn 
% Row Count 27 (+ 4)
% Row 7
\SetRowColor{white}
\{\{bt\}\}\$lookup \{\{bt\}\} & Performs a left outer join to a collection in the same database to filter in documents from the "joined" collection for processing. The \$lookup stage adds a new array field to each input document. The new array field contains the matching documents from the "joined" collection. The \$lookup stage passes these reshaped documents to the next stage. & \seqsplit{db.orders.aggregate(} {[}    \{      \$lookup:        \{          from: "inventory",          localField: "item",          foreignField: "sku",          as: \seqsplit{"inventory\_docs"}        \}   \} {]} ) \tn 
% Row Count 49 (+ 22)
\end{tabularx}
\par\addvspace{1.3em}

\vfill
\columnbreak
\begin{tabularx}{8.4cm}{x{1.52 cm} x{3.04 cm} x{3.04 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{3}{x{8.4cm}}{\bf\textcolor{white}{Aggregation Pipeline (cont)}}  \tn
% Row 8
\SetRowColor{LightBackground}
\mymulticolumn{3}{x{8.4cm}}{\{\{bb\}\}{\bf{The \$lookup takes a document with these fields:}}} \tn 
% Row Count 2 (+ 2)
% Row 9
\SetRowColor{white}
 & from & Specifies the collection in the same database to perform the join with. \tn 
% Row Count 7 (+ 5)
% Row 10
\SetRowColor{LightBackground}
 & localField & Specifies the field from the documents input to the \$lookup stage. \tn 
% Row Count 12 (+ 5)
% Row 11
\SetRowColor{white}
 & foreignField & Specifies the field from the documents in the from collection. \tn 
% Row Count 16 (+ 4)
% Row 12
\SetRowColor{LightBackground}
 & as & Specifies the name of the new array field to add to the input documents. \tn 
% Row Count 21 (+ 5)
\hhline{>{\arrayrulecolor{DarkBackground}}---}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{1.84 cm} x{6.16 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Logical operators}}  \tn
% Row 0
\SetRowColor{LightBackground}
\$and:{[}array{]} & AND operation between all array of expressions \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
\$or:{[}array{]} & OR operation between all array of expressions \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
\$nor:{[}array{]} & All array expressions must fail. \tn 
% Row Count 6 (+ 2)
% Row 3
\SetRowColor{white}
\seqsplit{\$not:Expr} & Performs a logical NOT operation on the specified \textless{}operator-expression\textgreater{} \tn 
% Row Count 9 (+ 3)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{1.6 cm} x{6.4 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Comparison operators}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{syntax}} & {\bf{Description}} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
\$eq & Matches values that are equal to a specified value. \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
\$ne & Matches all values that are not equal to a specified value. \tn 
% Row Count 6 (+ 2)
% Row 3
\SetRowColor{white}
\$gt & Matches values that are greater than a specified value. \tn 
% Row Count 8 (+ 2)
% Row 4
\SetRowColor{LightBackground}
\$gte & Matches values that are greater than or equal to a specified value. \tn 
% Row Count 11 (+ 3)
% Row 5
\SetRowColor{white}
\$lt & Matches values that are less than a specified value. \tn 
% Row Count 13 (+ 2)
% Row 6
\SetRowColor{LightBackground}
\$lte & Matches values that are less than or equal to a specified value. \tn 
% Row Count 15 (+ 2)
% Row 7
\SetRowColor{white}
\$in & Matches any of the values specified in an array \tn 
% Row Count 17 (+ 2)
% Row 8
\SetRowColor{LightBackground}
\$nin & Matches none of the values specified in an array. \tn 
% Row Count 19 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}


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

\end{document}