RegEx never endig story….

It is example of use RegEx to prepare SQL data for SELECT/UPDATE operation. /^.*/gm ^ asserts position at start of a line .* matches any character (except for line terminators) * Quantifier — Matches between zero and unlimited times, as many times as possible, giving back as needed (greedy) Global pattern flags g modifier: global.... Continue Reading →

SQL corner: 7 kind of SQL Joins. Including : INNER JOIN, LEFT JOIN, RIGHT JOIN, FULL JOIN

Infographic of the 7 kind of SQL Joins. Including : INNER JOIN, LEFT JOIN, RIGHT JOIN, FULL JOIN, with or without the intersect. Very useful for web developer. Source : http://sql.sh #SQL #JOIN Source: Pinterest http://sql.sh/2401-sql-join-infographie Other sources about JOIN https://docs.oracle.com/cd/B28359_01/server.111/b28286/queries006.htm https://www.techonthenet.com/oracle/joins.php - This Oracle tutorial explains how to use JOINS (inner and outer) in... Continue Reading →

SublimeText 3 tips and customization

One of best text editor for Linux and W$ bellow some tips and usefully configuration Regexp conversion to Wiki links Conversion to Wiki links add [ before and ] after text. Find what: (http.{2,}) Relpace to: [\1] Polish letters Polskie znaki diakrytyczne w Sublime Text 3 - dodanie wpisów do Key Bindings - User (na... Continue Reading →

Arrays of Pointers

9.4 Arrays of Pointers As seen in the last example, sorting an array of strings requires swapping the strings which can require copying a lot of data. For efficiency, it is better to avoid actual swapping of data whenever a data item is large, such as a string or an entire data base record. In... Continue Reading →

Programowanie współbieżne C na Linux – przykłady

Przykładowe zadania z programowania współbieżnego na systemie Linux Napisz program, który pokazuje, które atrybuty procesu macierzystego są dziedziczone przez proces potomny uruchomiony za pomocą funkcji fork(), które zaś otrzymują nową wartość. Napisz program, który pokazuje, które atrybuty procesu są zachowane przez proces po wykonaniu funkcji exec(). Napisz program, który wyświetla identyfikator procesu (PID) i nazwę... Continue Reading →

Interfaces in Java – slideshare tutorial

Tutoriale jak definiować i używać interfejsów w Java oraz czym się różni interfejs od abstract class. Interface in Java Introduction to Interface Multiple Inheritance – Example Why Interfaces are needed Java's Interface Concept Syntax Semantic Rules for Interfaces Example: An Interface for Shape Classes Extending Interface Abstract class and Interface Benefits of Interfaces Java's Most... Continue Reading →

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