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%\usepackage{opensans}          % Can't make this work so far. Shame. Would be lovely.
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% Document Info
\author{Xplendit}
\pdfinfo{
  /Title (nosql.pdf)
  /Creator (Cheatography)
  /Author (Xplendit)
  /Subject (NoSQL Cheat Sheet)
}

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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}}
    }
\end{tabulary}
\columnbreak
\begin{tabulary}{11cm}{L}
    \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{NoSQL Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{Xplendit} via \textcolor{DarkBackground}{\uline{cheatography.com/25193/cs/6504/}}}
\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}Xplendit \\
  \uline{cheatography.com/xplendit} \\
  \end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}}  \\
   \vspace{-2pt}Published 26th December, 2015.\\
   Updated 10th May, 2016.\\
   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

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% www.emerson.emory.edu/services/latex/latex_169.html
\footnotesize % Small font.

\begin{multicols*}{2}

\begin{tabularx}{8.4cm}{x{4 cm} x{4 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Getting acquainted with MongoDB}}  \tn
% Row 0
\SetRowColor{LightBackground}
show dbs & To see the list of databases in the system \tn 
% Row Count 3 (+ 3)
% Row 1
\SetRowColor{white}
use dbsname & Switched to db dbsname \tn 
% Row Count 5 (+ 2)
% Row 2
\SetRowColor{LightBackground}
db.getName() & To find out the currently selected database \tn 
% Row Count 8 (+ 3)
% Row 3
\SetRowColor{white}
show collections & To see the collections in a databases \tn 
% Row Count 10 (+ 2)
% Row 4
\SetRowColor{LightBackground}
db.dbname.insert(\{colomname:"data", colomname:data\}) & Save some data in the database \tn 
% Row Count 13 (+ 3)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{4.24 cm} x{3.76 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Create / add / find data in MongoDB}}  \tn
% Row 0
\SetRowColor{LightBackground}
db.dbname.insert(\{columnname:'stringdata', columnname:intdata\}) & To create documents in a collection \tn 
% Row Count 3 (+ 3)
% Row 1
\SetRowColor{white}
db.comedy.find() & To read data from a collection \tn 
% Row Count 5 (+ 2)
\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}{Conditional Operators}}  \tn
% Row 0
\SetRowColor{LightBackground}
db.collection.find(\{ "field" : \{ \$gt: value \} \} ) & greater than : field \textgreater{} value \tn 
% Row Count 3 (+ 3)
% Row 1
\SetRowColor{white}
db.collection.find(\{ "field" : \{ \$lt: value \} \} ) & less than : field \textless{} value \tn 
% Row Count 6 (+ 3)
% Row 2
\SetRowColor{LightBackground}
db.collection.find(\{ "field" : \{ \$gte: value \} \} ) & greater than or equal to : field \textgreater{}= value \tn 
% Row Count 9 (+ 3)
% Row 3
\SetRowColor{white}
db.collection.find(\{ "field" : \{ \$lte: value \} \} ) & less than or equal to : field \textless{}= value \tn 
% Row Count 12 (+ 3)
% Row 4
\SetRowColor{LightBackground}
db.comedy.find(\{year: \{ \$gt: 2007, \$lt: 2011\} \} ) & You can also combine these operators to specify ranges \tn 
% Row Count 15 (+ 3)
% Row 5
\SetRowColor{white}
db.comedy.find(\{year:2012\}) & And how do we do an 'equal to' query? Just match the value for the queried key \tn 
% Row Count 19 (+ 4)
% Row 6
\SetRowColor{LightBackground}
db.comedy.find(\{year:\{'\$lt':2012\}\}, \{name:true\}) & What if you want to get only some fields in the result? \tn 
% Row Count 22 (+ 3)
% Row 7
\SetRowColor{white}
db.comedy.find(\{year:\{'\$lt':2012\}\}, \{name:false\}) & What if you want to get all, except some fields in the result? \tn 
% Row Count 26 (+ 4)
% Row 8
\SetRowColor{LightBackground}
db.comedy.find(\{year: \{\$ne: 2011\}\}) & Use \$ne for "not equals". \tn 
% Row Count 28 (+ 2)
% Row 9
\SetRowColor{white}
db.comedy.find(\{year: \{\$in: {[}2010,2011,2012{]}\}\}) & The \$in operator is analogous to the SQL IN modifier, allowing you to specify an array of possible matches. \tn 
% Row Count 34 (+ 6)
\end{tabularx}
\par\addvspace{1.3em}

\vfill
\columnbreak
\begin{tabularx}{8.4cm}{x{4 cm} x{4 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Conditional Operators (cont)}}  \tn
% Row 10
\SetRowColor{LightBackground}
db.comedy.find(\{year: \{\$nin: {[}2010,2011,2012{]}\}\}) & The \$nin operator is similar to \$in except that it selects objects for which the specified field does not have any value in the specified array \tn 
% Row Count 8 (+ 8)
% Row 11
\SetRowColor{white}
db.comedy.find(\{year: \{\$nor: {[}2010,2011,2012{]}\}\}) & The \$nor operator lets you use a boolean or expression to do queries. You give \$nor a list of expressions, none of which can satisfy the query. \tn 
% Row Count 16 (+ 8)
% Row 12
\SetRowColor{LightBackground}
db.comedy.find(\{\$or: {[}\{year: 2012\}, \{name: 'The hangover'\}{]}\}) & The \$or operator lets you use boolean or in a query. You give \$or an array of expressions, any of which can satisfy the query. \tn 
% Row Count 23 (+ 7)
% Row 13
\SetRowColor{white}
db.comedy.find(\{\$and:{[}\{year: \{\$gt: 2010\}\}, \{year:\{\$lt: 2012\}\}{]}\}) & The \$and operator lets you use boolean and in a query. You give \$and an array of expressions, all of which must match to satisfy the query \tn 
% Row Count 30 (+ 7)
\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}{Update data in MongoDB}}  \tn
% Row 0
\SetRowColor{LightBackground}
db.comedy.update(\{name:"Ted"\}, \{'\$set':\{director:'Seth MacFarlane', cast:{[}'Mark Wahlberg', 'Mila Kunis', 'Matt Walsh', 'Jessica Barth', 'Aedin Mincks'{]}\}\}) & update \tn 
% Row Count 8 (+ 8)
% Row 1
\SetRowColor{white}
db.comedy.update(\{name:"Ted 2"\}, \{'\$set':\{year: 2015\}\}, \{upsert: true\}) & By specifying upsert: true, applications can indicate, in a single operation, that if no matching documents are found for the update, an insert should be performed. \tn 
% Row Count 17 (+ 9)
% Row 2
\SetRowColor{LightBackground}
db.comedy.update(\{year:2012\}, \{'\$set':\{rating: 4\}\}, \{multi: true\}) & owever, with the multi option, update() can update all documents in a collection that match a query. \tn 
% Row Count 22 (+ 5)
% Row 3
\SetRowColor{white}
db.comedy.update(\{name:"Ted"\}, \{'\$push':\{cast:'Joel McHale'\}\}) & Now how do you update a value which is an array? \tn 
% Row Count 26 (+ 4)
% Row 4
\SetRowColor{LightBackground}
db.comedy.update(\{name:"Ted"\}, \{'\$pull':\{cast:'Giovanni Ribisi'\}\}) & If we need to remove something from the cast array. We do it this way: \tn 
% Row Count 30 (+ 4)
\end{tabularx}
\par\addvspace{1.3em}

\vfill
\columnbreak
\begin{tabularx}{8.4cm}{x{4 cm} x{4 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Update data in MongoDB (cont)}}  \tn
% Row 5
\SetRowColor{LightBackground}
db.comedy.update(\{name:"Ted"\}, \{'\$pop':\{cast:-1\}\}) & We can also use \$pop to remove the first element \tn 
% Row Count 3 (+ 3)
% Row 6
\SetRowColor{white}
db.comedy.update(\{name:"Ted"\}, \{'\$pop':\{cast:1\}\}) & We can also use \$pop to remove the last element \tn 
% Row Count 6 (+ 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}{Dot notation}}  \tn
% Row 0
\SetRowColor{LightBackground}
db.articles.find(\{'meta.author':'Chad Muska'\}) & To search an object inside an object, just use the regular JavaScript dot notation of the target object as the key AND quote it. \tn 
% Row Count 7 (+ 7)
% Row 1
\SetRowColor{white}
db.articles.find(\{'meta.tags':'mongolia'\}) & You need to query an array? No problem \tn 
% Row Count 10 (+ 3)
% Row 2
\SetRowColor{LightBackground}
db.articles.find(\{'comments.by':'Steve'\}) & When the key is an array, the database looks for the object right in the array. You need to look for an object inside an array? \tn 
% Row Count 17 (+ 7)
% Row 3
\SetRowColor{white}
db.articles.find( \{ comments : \{ \$size: 2 \} \} ) & The \$size operator matches any array with the specified number of elements. \tn 
% Row Count 21 (+ 4)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{8.4cm}}{You cannot use \$size to find a range of sizes (for example: arrays with more than 1 element). If you need to query for a range, create an extra size field that you increment when you add elements.}  \tn 
\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}{Regular expression}}  \tn
% Row 0
\SetRowColor{LightBackground}
db.comedy.find(\{name:\{\$regex: /bill|ted/i\}\}) & We can even use regular expressions in our queries \tn 
% Row Count 3 (+ 3)
% Row 1
\SetRowColor{white}
db.comedy.find(\{name: /The hangover.*/i \} ); & We can even use regular expressions in our queries \tn 
% Row Count 6 (+ 3)
% Row 2
\SetRowColor{LightBackground}
db.comedy.find(\{name: \{\$regex: 'The hangover.*', \$options: 'i'\}\}); & We can even use regular expressions in our queries \tn 
% Row Count 10 (+ 4)
% Row 3
\SetRowColor{white}
db.comedy.find(\{name: \{\$regex: /The hangover.*/i, \$nin: {[}'The Hangover Part II'{]}\}\}); & If you wish to specify both a regex and another operator for the same field, you need to use the \$regex clause. \tn 
% Row Count 16 (+ 6)
% Row 4
\SetRowColor{LightBackground}
db.comedy.find(\{name: \{\$not: /The hangover.*/i\}\}); & The \$not meta operator can be used to negate the check performed by a standard operator. For example: \tn 
% Row Count 22 (+ 6)
% Row 5
\SetRowColor{white}
\seqsplit{db.comedy.find('this.year} \textgreater{} 2009 \&\& this.name !== "Ted"') & MongoDB queries support JavaScript expressions! \tn 
% Row Count 25 (+ 3)
% Row 6
\SetRowColor{LightBackground}
db.comedy.find(\{\$where: 'this.year \textgreater{} 2011'\}) & MongoDB has another operator called \$where using which you can perform SQL's WHERE-like operations. \tn 
% Row Count 30 (+ 5)
\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}{De rest}}  \tn
% Row 0
\SetRowColor{LightBackground}
db.comedy.count() & This will return the total number of documents in the collection named comedy \tn 
% Row Count 4 (+ 4)
% Row 1
\SetRowColor{white}
db.comedy.count(\{year:\{\$gt:2009\}\}) & This will return the total number of documents in the collection named comedy with the value of year more than 2009: \tn 
% Row Count 10 (+ 6)
% Row 2
\SetRowColor{LightBackground}
\seqsplit{db.comedy.find().limit(2)} & To limit the collection to just two: \tn 
% Row Count 12 (+ 2)
% Row 3
\SetRowColor{white}
db.comedy.findOne() & Similar to using find().limit(1), there is a function called findOne(), which will get you only one document in the result. \tn 
% Row Count 19 (+ 7)
% Row 4
\SetRowColor{LightBackground}
\seqsplit{db.comedy.find().skip(1).limit(2)} & The skip() expression allows one to specify at which object the database should begin returning results. \tn 
% Row Count 25 (+ 6)
% Row 5
\SetRowColor{white}
db.articles.find (\{'meta.tags': \{\$all: {[}'mongodb', 'mongo'{]}\}\}); & The \$all operator is similar to \$in, but instead of matching any value in the specified array all values in the array must be matched. \tn 
% Row Count 32 (+ 7)
\end{tabularx}
\par\addvspace{1.3em}

\vfill
\columnbreak
\begin{tabularx}{8.4cm}{x{4 cm} x{4 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{De rest (cont)}}  \tn
% Row 6
\SetRowColor{LightBackground}
db.articles.find (\{title: \{\$exists : true\}\}); & Check for existence (or lack thereof) of a field. \tn 
% Row Count 3 (+ 3)
% Row 7
\SetRowColor{white}
db. articles.find().sort(\{title : -1\}) & sort() is analogous to the ORDER BY statement in SQL - it requests that items be returned in a particular order. We pass sort() a key pattern which indicates the desired order for the result. \tn 
% Row Count 13 (+ 10)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{8.4cm}}{An array can have more elements than those specified by the \$all criteria. \$all specifies a minimum set of elements that must be matched.}  \tn 
\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}{Delete data in MongoDB}}  \tn
% Row 0
\SetRowColor{LightBackground}
db.comedy.update(\{name:'Ted'\}, \{\$unset:\{cast:1\}\}) & How do you delete a field from a document? \tn 
% Row Count 3 (+ 3)
% Row 1
\SetRowColor{white}
db.comedy.update(\{\$unset:\{cast:1\}\}, false, true) & In case you want to delete a field from all the documents of a collection: \tn 
% Row Count 7 (+ 4)
% Row 2
\SetRowColor{LightBackground}
db.comedy.remove(\{name:'Ted'\}) & How do you delete a document from a collection? \tn 
% Row Count 10 (+ 3)
% Row 3
\SetRowColor{white}
db.comedy.remove(\{\}) & How do you empty a collection of its documents? \tn 
% Row Count 13 (+ 3)
% Row 4
\SetRowColor{LightBackground}
db.comedy.drop() & How do you delete / drop a collection? \tn 
% Row Count 15 (+ 2)
% Row 5
\SetRowColor{white}
use movies; db.dropDatabase() & To delete a database select the database and call the db.dropDatabase() on it: \tn 
% Row Count 19 (+ 4)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}


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

\end{document}