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% Document Info
\author{Oficina de Datos (Miguel Ortiz)}
\pdfinfo{
  /Title (buenas-practicas-sql.pdf)
  /Creator (Cheatography)
  /Author (Oficina de Datos (Miguel Ortiz))
  /Subject (Buenas practicas SQL Cheat Sheet)
}

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\noindent
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    {\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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    \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{Buenas practicas SQL Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{Oficina de Datos (Miguel Ortiz)} via \textcolor{DarkBackground}{\uline{cheatography.com/148304/cs/32343/}}}
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\noindent
\begin{multicols}{3}
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  \mymulticolumn{2}{p{5.377cm}}{\bf\textcolor{white}{Cheatographer}}  \\
  \vspace{-2pt}Oficina de Datos (Miguel Ortiz) \\
  \uline{cheatography.com/miguel-ortiz} \\
  \end{tabulary}
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  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}}  \\
   \vspace{-2pt}Published 6th June, 2022.\\
   Updated 23rd September, 2022.\\
   Page {\thepage} of \pageref{LastPage}.
\end{tabulary}
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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
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\begin{document}
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\begin{multicols*}{3}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Creación de tablas}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{{\bf{¡Importante!}} Es obligatorio guardar las tablas como Parquet y no en formato Text File en el lago de datos debido a que estos últimos ocupan más espacio de almacenamiento.} \tn 
% Row Count 4 (+ 4)
% Row 1
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{{\bf{Estructura para crear esto desde Hive}}} \tn 
% Row Count 5 (+ 1)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{CREATE TABLE Nombre\_Tabla(Schema) ROW FORMAT DELIMITED FIELDS TERMINATED BY ";" STORED AS PARQUET;} \tn 
% Row Count 7 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Sentencia SELECT}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{Evitar usar {\bf{SELECT }}*. Es preferible listar las columnas exactas que se usarán en el análisis de forma que se optimice el almacenamiento y procesamiento de la consulta.} \tn 
% Row Count 4 (+ 4)
% Row 1
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{{\bf{a. Código sin optimizar}}} \tn 
% Row Count 5 (+ 1)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{-{}- Tabla t1 tiene 90 columnas \{\{nl\}\} {\bf{select }}* \{\{nl\}\} from tabla1 t1} \tn 
% Row Count 7 (+ 2)
% Row 3
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{{\bf{b. Código optimizado}}} \tn 
% Row Count 8 (+ 1)
% Row 4
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{{\bf{select}} \{\{nl\}\} t1.var1,  \{\{nl\}\}	t1.var7 \{\{nl\}\} from tabla1 t1} \tn 
% Row Count 10 (+ 2)
% Row 5
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{{\bf{Por otro lado, use en lo posible, la función LIMIT para limitar el número de filas visualizadas.}}} \tn 
% Row Count 13 (+ 3)
% Row 6
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{{\bf{Select}}*  \{\{nl\}\} from tabla1 t1 \{\{nl\}\} Limit 10} \tn 
% Row Count 14 (+ 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}{{\bf{Delimitación de periodos}}}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{Evitar realizar consultas que no contengan un {\bf{periodo delimitado}}, esto permite que sea mas eficiente, optimizando el almacenamiento y procesamineto.} \tn 
% Row Count 4 (+ 4)
% Row 1
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{{\bf{a. Código sin optimizar.}}} \tn 
% Row Count 5 (+ 1)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{{\bf{Select}} \{\{nl\}\} t1.var1 \{\{nl\}\} t2.var2 \{\{nl\}\} {\bf{from}} tabla1 t1} \tn 
% Row Count 7 (+ 2)
% Row 3
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{{\bf{b. Código optimizado.}}} \tn 
% Row Count 8 (+ 1)
% Row 4
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{{\bf{Select}} \{\{nl\}\} t1.var1 \{\{nl\}\} t2.var2 \{\{nl\}\} {\bf{from}} tabla1 t1 \{\{nl\}\} {\bf{where periodo = AAAAMMDD}}} \tn 
% Row Count 11 (+ 3)
% Row 5
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{{\bf{c. Código optimizado 2.}}} \tn 
% Row Count 12 (+ 1)
% Row 6
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{{\bf{Select}} \{\{nl\}\} t1.var1 \{\{nl\}\} t2.var2 \{\{nl\}\} {\bf{from}} tabla1 t1 \{\{nl\}\} {\bf{where periodo Between AAAAMMDD and AAAAMMDD}}} \tn 
% Row Count 15 (+ 3)
% Row 7
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{{\bf{Por otro lado, si no utiliza un delimitador de periodo debe usar la función LIMIT}} para limitar el número de filas visualizadas.} \tn 
% Row Count 18 (+ 3)
% Row 8
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{{\bf{Select}} \{\{nl\}\} {\bf{from}} tabla1 t1 \{\{nl\}\} {\bf{Limit}} 10} \tn 
% Row Count 20 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Sentencia WHERE vs JOIN}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{Evitar cruces entre tablas usando WHERE, preferir la definición de cruces con JOIN y todas sus variaciones (left, right, inner, etc)} \tn 
% Row Count 3 (+ 3)
% Row 1
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{{\bf{a. Código sin optimizar}}} \tn 
% Row Count 4 (+ 1)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{{\bf{select}} \{\{nl\}\} t1.var1, \{\{nl\}\} t1.var7, \{\{nl\}\} t2.var2 \{\{nl\}\} {\bf{from}} tabla1 t1, tabla2 t2 \{\{nl\}\} {\bf{where}} t1.var1 = t2.var5} \tn 
% Row Count 7 (+ 3)
% Row 3
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{{\bf{b. Código optimizado}}} \tn 
% Row Count 8 (+ 1)
% Row 4
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{{\bf{select}} \{\{nl\}\} t1.var1, \{\{nl\}\} t1.var7, \{\{nl\}\} t2.var2 {\bf{from}} tabla1 t1 inner join tabla2 t2 \{\{nl\}\}  ~ {\bf{on}} t1.var1 = t2.var5} \tn 
% Row Count 11 (+ 3)
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Sentencia DISTINCT vs GROUP BY}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{Para eliminar duplicados preferir {\bf{DISTINCT}} en vez de {\bf{GROUP BY.}}} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{{\bf{a. Código sin optimizar}}} \tn 
% Row Count 3 (+ 1)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{{\bf{select}} \{\{nl\}\} t1.var1 \{\{nl\}\} t1.var7 \{\{nl\}\} {\bf{from}} tabla1 t1 \{\{nl\}\} {\bf{group by}} t1.var1, t1.var7} \tn 
% Row Count 6 (+ 3)
% Row 3
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{{\bf{b. Código optimizado}}} \tn 
% Row Count 7 (+ 1)
% Row 4
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{{\bf{select distinct}} \{\{nl\}\} t1.var1 \{\{nl\}\} t1.var7 \{\{nl\}\}{\bf{from}} tabla1 t1} \tn 
% Row Count 9 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Sentencias UPDATE vs CASE WHEN}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{Evitar sentencias de {\bf{UPDATE}} posteriores a consultas y reemplazarlas en lo posible por sentencias de {\bf{CASE WHEN}} para rehusar las sentencias de códigos previas.} \tn 
% Row Count 4 (+ 4)
% Row 1
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{{\bf{a. Código sin optimizar}}} \tn 
% Row Count 5 (+ 1)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{-{}-{}- Consulta genera tabla: TemporalTabla \{\{nl\}\} {\bf{select}} \{\{nl\}\} t1.var1, \{\{nl\}\} t1.var7, \{\{nl\}\} t2.var2 \{\{nl\}\}{\bf{from}} tabla1 t1 {\bf{left join}} tabla2 t2 \{\{nl\}\}~{\bf{on}} t1.var1 = t2.var5 \{\{nl\}\} -{}-{}- Actualización de tabla: TemporalTabla \{\{nl\}\} {\bf{update}} TemporalTabla \{\{nl\}\}{\bf{set}} var2 = "No aplica" \{\{nl\}\}{\bf{where}} var7 is null} \tn 
% Row Count 12 (+ 7)
% Row 3
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{{\bf{b. Código optimizado}}} \tn 
% Row Count 13 (+ 1)
% Row 4
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{{\bf{select}}\{\{nl\}\}	t1.var1 \{\{nl\}\} t1.var7 \{\{nl\}\} {\bf{case}}\{\{nl\}\} {\bf{when}} var7 is null then "no aplica" 	\{\{nl\}\}{\bf{else}} t2.var2 \{\{nl\}\}{\bf{end as}} var2 \{\{nl\}\}{\bf{from}} tabla1 t1 {\bf{left join}} tabla2 t2 \{\{nl\}\}{\bf{on}} t1.var1 = t2.var5} \tn 
% Row Count 18 (+ 5)
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Sentencia IN/NOT IN vs JOINS o WITH}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{Evitar al máximo consultas anidadas y el uso de {\bf{IN/NOT IN.}} Reemplazar por {\bf{JOINS}} o por la cláusula {\bf{WITH}} para garantizar un código más fácil de leer y/o depurar.} \tn 
% Row Count 4 (+ 4)
% Row 1
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{\{\{nl\}\}{\bf{a. Código sin optimizar 1}}} \tn 
% Row Count 5 (+ 1)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{{\bf{select}} \{\{nl\}\} t1.var1, \{\{nl\}\} t1.var7 \{\{nl\}\}{\bf{from}} tabla1 t1 \{\{nl\}\} {\bf{where}} t1.var1 {\bf{in}} ({\bf{select}} t2.columna {\bf{from}} tabla2 t2)} \tn 
% Row Count 8 (+ 3)
% Row 3
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{{\bf{b. Código optimizado 1}}} \tn 
% Row Count 9 (+ 1)
% Row 4
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{{\bf{select}} \{\{nl\}\} t1.var1, \{\{nl\}\} t1.var7 \{\{nl\}\}{\bf{from}} tabla1 t1 {\bf{inner join}} tabla2 t2 \{\{nl\}\}{\bf{on}} t1.var1 = t2.columna} \tn 
% Row Count 12 (+ 3)
% Row 5
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{{\bf{c. Código sin optimizar }}} \tn 
% Row Count 13 (+ 1)
% Row 6
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{{\bf{select}}  \{\{nl\}\} t1.var1,  \{\{nl\}\} t1.var7  \{\{nl\}\}{\bf{from}} tabla1 t1 {\bf{inner join}} \{\{nl\}\}(  \{\{nl\}\}{\bf{select}}  \{\{nl\}\}t2.columna  \{\{nl\}\}{\bf{from}} tabla2 t2 	{\bf{left join}}* tabla3 t3  \{\{nl\}\}{\bf{on}} t2.var1 = t3.var1 \{\{nl\}\})  temporal \{\{nl\}\} {\bf{on}} t1.var1 = temporal.columna} \tn 
% Row Count 19 (+ 6)
% Row 7
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{{\bf{d. Código optimizado 2}}} \tn 
% Row Count 20 (+ 1)
% Row 8
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{with temporal as ( \{\{nl\}\}{\bf{select}} \{\{nl\}\} t2.columna \{\{nl\}\} {\bf{from}} tabla2 t2 {\bf{left join}} tabla3 t3 \{\{nl\}\}{\bf{on}} t2.var1 = t3.var1 \{\{nl\}\} ) \{\{nl\}\} {\bf{select}}  \{\{nl\}\} t1.var1, \{\{nl\}\} t1.var7 \{\{nl\}\} {\bf{from}} tabla1 t1 {\bf{inner join}} temporal \{\{nl\}\}{\bf{on}} t1.var1 = temporal.columna} \tn 
% Row Count 26 (+ 6)
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Unificación de procesos}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{Unificar procesos similares. No repetir procesos.} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{{\bf{a. Código sin optimizar}}} \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{{\bf{update}} \{\{nl\}\} \seqsplit{temp\_comercios\_nuevos\_cr} \{\{nl\}\} {\bf{set}} \{\{nl\}\} nuevo\_nombre = {\bf{replace}}(nuevo\_nombre, 'www.','') \{\{nl\}\}{\bf{where}} \{\{nl\}\}nuevo\_nombre {\bf{like}} '\%www.\%'  \{\{nl\}\} {\bf{update}} \{\{nl\}\} \seqsplit{temp\_comercios\_nuevos\_cr} \{\{nl\}\} {\bf{set}} \{\{nl\}\} nuevo\_nombre = {\bf{replace}}(nuevo\_nombre, '/bill','') {\bf{where}} \{\{nl\}\} nuevo\_nombre like '/bill' -{}-etc} \tn 
% Row Count 10 (+ 8)
% Row 3
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{{\bf{b. Código optimizado}}} \tn 
% Row Count 11 (+ 1)
% Row 4
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{{\bf{select}} \{\{nl\}\} {\bf{case}} \{\{nl\}\} {\bf{when}} nuevo\_nombre {\bf{like}} '\%/bill\%' {\bf{then}} \{\{nl\}\} {\bf{replace}} (nuevo\_nombre, '/bill','') \{\{nl\}\}{\bf{when}} nuevo\_nombre {\bf{like}} '\%www.\%' {\bf{then}}\{\{nl\}\} {\bf{replace}}(nuevo\_nombre, 'www.','') \{\{nl\}\}{\bf{else}} nuevo\_nombre \{\{nl\}\}{\bf{end}} as nuevo\_nombre \{\{nl\}\}{\bf{from}} \seqsplit{temp\_comercios\_nuevos\_cr}} \tn 
% Row Count 18 (+ 7)
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Convenciones}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{Evitar el uso de alias o nombres temporales ambiguos. Se recomienda aclarar si la construcción es temporal y a que hace referencia, de forma que el proceso de negocio sea coherente y fácil de manipular.} \tn 
% Row Count 5 (+ 5)
% Row 1
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{{\bf{a. Código sin optimizar}}} \tn 
% Row Count 6 (+ 1)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{{\bf{select}} \{\{nl\}\} A.var1, \{\{nl\}\}A.var7 \{\{nl\}\}{\bf{from}} tabla1 A {\bf{inner join}}\{\{nl\}\} ( \{\{nl\}\} {\bf{select}} \{\{nl\}\}t2.columna \{\{nl\}\}{\bf{from}} tabla2 B {\bf{left join}} tabla3 C \{\{nl\}\}{\bf{on}} B.var1 = C.var1 \{\{nl\}\} )D \{\{nl\}\} {\bf{on}} A.var1 = D.columna} \tn 
% Row Count 11 (+ 5)
% Row 3
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{{\bf{b. Código optimizado}}} \tn 
% Row Count 12 (+ 1)
% Row 4
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{with estado\_tx as ( \{\{nl\}\} {\bf{select}} t2. columna \{\{nl\}\} {\bf{from}} tabla2 movto {\bf{left join}} tabla3 novedades \{\{nl\}\} {\bf{on}} movto.var1 = novedades.var1 ) \{\{nl\}\} {\bf{select}} \{\{nl\}\} 	saldos.var1, \{\{nl\}\}  saldos.var7 \{\{nl\}\} {\bf{from}} tabla1.saldos {\bf{inner join}} estado\_tx \{\{nl\}\} {\bf{on}} saldos.var1 = estado\_tx.columna} \tn 
% Row Count 19 (+ 7)
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Nombramiento tablas temporales}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{A manera de estándar se recomienda que las tablas temporales creadas dentro de un proceso de SQL sigan la siguiente estructura: {\bf{temp\_AbreviaturaProyecto\_nombreTabla.}}} \tn 
% Row Count 4 (+ 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}{Nombres de variables y tablas}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{Como se mencionó en el punto anterior, se debe evitar la ambigüedad en las tablas o subconsultas. Sin embargo, esto aplica también en el nombramiento de las columnas en las que se recomienda usar el separador "\_" para usar nombres largos. Usar abreviaciones cuando se requiera, sin que el uso de las mismas puedan confundir al lector del código. \{\{nl\}\} {\bf{(Ejemplo: Reemplazar NAprobaTjCredCl por nro\_aprobacion\_tdc\_cliente)}}} \tn 
% Row Count 9 (+ 9)
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}


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

\end{document}