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%\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.
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\usepackage{MnSymbol}           % Symbols
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% Document Info
\author{xzeqtr}
\pdfinfo{
  /Title (oracle-sql.pdf)
  /Creator (Cheatography)
  /Author (xzeqtr)
  /Subject (Oracle SQL 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{Oracle SQL Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{xzeqtr} via \textcolor{DarkBackground}{\uline{cheatography.com/148318/cs/32352/}}}
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\fancyfoot[L]{ \footnotesize
\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{LL}
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  \mymulticolumn{2}{p{5.377cm}}{\bf\textcolor{white}{Cheatographer}}  \\
  \vspace{-2pt}xzeqtr \\
  \uline{cheatography.com/xzeqtr} \\
  \end{tabulary}
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\columnbreak
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  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}}  \\
   \vspace{-2pt}Not Yet Published.\\
   Updated 5th July, 2022.\\
   Page {\thepage} of \pageref{LastPage}.
\end{tabulary}
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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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\end{multicols}}




\begin{document}
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\begin{multicols*}{3}

\begin{tabularx}{5.377cm}{p{0.4977 cm} p{0.4977 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Comments}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{-{}- \seqsplit{однострочный~комментарий}} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
\mymulticolumn{2}{x{5.377cm}}{/*   многострочный\{\{nl\}\}комментарий */} \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{На текущей строке или для выделенного блока кода работает Ctrl + /} \tn 
% Row Count 7 (+ 3)
\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}{General}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{DDL и DML — подмножество языка SQL (как и DCL и TCL)} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
Язык DML служит для \seqsplit{манипуляций} с данными таблиц, т.е. с ее строками. Он позволяет делать выборку данных из таблиц, добавлять, обновлять и удалять данные & Язык DDL служит для создания и \seqsplit{модификации} структуры БД, т.е. для \seqsplit{создания/изменения/удаления} таблиц и связей \tn 
% Row Count 16 (+ 14)
% Row 2
\SetRowColor{LightBackground}
SELECT – выборка данных\{\{nl\}\}INSERT – добавляет новые данные\{\{nl\}\}UPDATE – изменяет \seqsplit{существующие} данные\{\{nl\}\}DELETE – удаляет данные & CREATE – создание объектов БД\{\{nl\}\}ALTER – изменение объектов БД\{\{nl\}\}DROP – удаление объектов БД \tn 
% Row Count 27 (+ 11)
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\par\addvspace{1.3em}

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\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Users}}  \tn
% Row 0
\SetRowColor{LightBackground}
Current User & SELECT user FROM dual \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
List Users & SELECT username FROM all\_users \tn 
% Row Count 4 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
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\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}{Data Types}}  \tn
% Row 0
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\mymulticolumn{2}{x{5.377cm}}{{\bf{Character data types}}} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
VARCHAR2(size {[}BYTE | CHAR{]}) & variable-length \tn 
% Row Count 3 (+ 2)
% Row 2
\SetRowColor{LightBackground}
CHAR & fixed-length \tn 
% Row Count 4 (+ 1)
% Row 3
\SetRowColor{white}
\mymulticolumn{2}{x{5.377cm}}{{\bf{UNICODE}}} \tn 
% Row Count 5 (+ 1)
% Row 4
\SetRowColor{LightBackground}
NVARCHAR2(size) & storing Unicode character strings, variable-length \tn 
% Row Count 8 (+ 3)
% Row 5
\SetRowColor{white}
NCHAR & storing Unicode character strings, fixed-length \tn 
% Row Count 11 (+ 3)
% Row 6
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{{\bf{Number data type}}} \tn 
% Row Count 12 (+ 1)
% Row 7
\SetRowColor{white}
NUMBER{[}(precision {[}, scale{]}{]})\{\{nl\}\}INTEGER = NUMBER(38) & The precision (p) ranges from 1 to 38 while the scale (s) range from -84 to 127.  If you don't specify the precision, the column can store values including fixed-point and floating-point numbers. The default value for the scale is zero. \tn 
% Row Count 24 (+ 12)
% Row 8
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\mymulticolumn{2}{x{5.377cm}}{{\bf{Date and Time}}} \tn 
% Row Count 25 (+ 1)
% Row 9
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\mymulticolumn{2}{x{5.377cm}}{DATE} \tn 
% Row Count 26 (+ 1)
% Row 10
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\mymulticolumn{2}{x{5.377cm}}{TIMESTAMP} \tn 
% Row Count 27 (+ 1)
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\begin{tabularx}{5.377cm}{p{0.4977 cm} p{0.4977 cm} }
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\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{CONSTRAINTS}}  \tn
% Row 0
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\mymulticolumn{2}{x{5.377cm}}{PRIMARY KEY} \tn 
% Row Count 1 (+ 1)
% Row 1
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\mymulticolumn{2}{x{5.377cm}}{FOREIGN KEY} \tn 
% Row Count 2 (+ 1)
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\mymulticolumn{2}{x{5.377cm}}{UNIQUE} \tn 
% Row Count 3 (+ 1)
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\mymulticolumn{2}{x{5.377cm}}{CHECK} \tn 
% Row Count 4 (+ 1)
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\mymulticolumn{2}{x{5.377cm}}{NOT NULL} \tn 
% Row Count 5 (+ 1)
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\begin{tabularx}{5.377cm}{x{2.4885 cm} x{2.4885 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{SELECT}}  \tn
% Row 0
\SetRowColor{LightBackground}
SELECT\{\{nl\}\}    column\_1,\{\{nl\}\}    column\_2, ... \{\{nl\}\}FROM   table\_name; & SELECT\{\{nl\}\}    * \{\{nl\}\}FROM table\_name; \tn 
% Row Count 4 (+ 4)
% Row 1
\SetRowColor{white}
SELECT DISTINCT & Убирает дубли \tn 
% Row Count 6 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
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\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{p{0.4577 cm} x{0.9154 cm} x{3.2039 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{3}{x{5.377cm}}{\bf\textcolor{white}{SELECT statement}}  \tn
% Row 0
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5 & SELECT & Which columns to return \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
1 & FROM & Defines table(s) to query \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
2 & WHERE & Filters rows using a predicate \tn 
% Row Count 4 (+ 2)
% Row 3
\SetRowColor{white}
3 & GROUP BY & Arranges rows by groups \tn 
% Row Count 5 (+ 1)
% Row 4
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4 & HAVING & Filters groups using a predicate \tn 
% Row Count 7 (+ 2)
% Row 5
\SetRowColor{white}
6 & ORDER BY & Sorts the output \tn 
% Row Count 8 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}---}
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\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Coalesce}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{COALESCE() function returns the first non-null expression in the list: \{\{nl\}\}COALESCE(e1, e2, ..., en)} \tn 
% Row Count 3 (+ 3)
% Row 1
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{COALESCE(e1, e2,..., en); is equivalent to \{\{nl\}\}CASE \{\{nl\}\}WHEN e1 IS NOT NULL \{\{nl\}\}THEN\{\{nl\}\}~~e1\{\{nl\}\}ELSE\{\{nl\}\}~~COALESCE (e2, ..., en)\{\{nl\}\}END} \tn 
% Row Count 7 (+ 4)
\hhline{>{\arrayrulecolor{DarkBackground}}-}
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\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Some | Any, All}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{\textless{}выражение\textgreater{} \textless{}оператор сравнения\textgreater{} SOME | ANY (\textless{}подзапрос\textgreater{}) \newline % Row Count 2 (+ 2)
SOME и ANY являются синонимами, то есть может \seqsplit{использоваться} любое из них. Результатом подзапроса является один столбец величин. Если хотя бы для одного значения V, получаемого из подзапроса, результат операции "\textless{}значение выражения\textgreater{} \textless{}оператор сравнения\textgreater{} V" равняется TRUE, то предикат ANY также равняется TRUE. \newline % Row Count 13 (+ 11)
\textless{}выражение\textgreater{} \textless{}оператор сравнения\textgreater{} ALL (\textless{}подзапрос\textgreater{}) \newline % Row Count 15 (+ 2)
Исполняется так же, как и ANY, однако значение предиката ALL будет истинным, если для всех значений V, получаемых из подзапроса, предикат "\textless{}значение выражения\textgreater{} \textless{}оператор сравнения\textgreater{} V" дает TRUE.% Row Count 22 (+ 7)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
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\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Агрегатные функции}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{COUNT(*) Возвращает количество строк источника записей \newline COUNT	 Возвращает количество значений в указанном столбце \newline SUM	 Возвращает сумму значений в указанном столбце \newline AVG	 Возвращает среднее значение в указанном столбце \newline MIN	 Возвращает минимальное значение в указанном столбце \newline MAX	 Возвращает максимальное значение в указанном столбце} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.74195 cm} x{3.23505 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Операции}}  \tn
% Row 0
\SetRowColor{LightBackground}
String Concatenation & SELECT 'A' || 'B' FROM dual; — returns AB \tn 
% Row Count 2 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.59264 cm} x{3.38436 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Операторы для условий}}  \tn
% Row 0
\SetRowColor{LightBackground}
=, \textless{}, \textgreater{}, \textless{}\textgreater{}, \textless{}=, \textgreater{}= & равен, меньше, больше, неравен, меньше или равно, больше или равно \tn 
% Row Count 5 (+ 5)
% Row 1
\SetRowColor{white}
between,not between & значение в диапазоне \tn 
% Row Count 7 (+ 2)
% Row 2
\SetRowColor{LightBackground}
in, not in & значение в списке \tn 
% Row Count 9 (+ 2)
% Row 3
\SetRowColor{white}
like, not like & значение подходит по маске (\% - множество символов, \_ - один символ) \tn 
% Row Count 14 (+ 5)
% Row 4
\SetRowColor{LightBackground}
and, or & логические и, или \tn 
% Row Count 16 (+ 2)
% Row 5
\SetRowColor{white}
() & указание приоритета \tn 
% Row Count 18 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}


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

\end{document}