YuWebdesign

RU




Git Cheat Sheet

By YuwebDesign

Git Cheat Sheet

What is a Version Control System (VCS)?

Git is a Version Control System (VCS) that allows:

  1. revert selected files back to a previous state
  2. revert the entire project back to a previous state
  3. compare changes over time
  4. see who last modified something that might be causing a problem
  5. see who introduced an issue and when, and more
  6. Using a VCS also generally means that if you screw things up or lose files, you can easily recover.


Continue Reading >>>

Unix/Linux vs Windows Command Line Cheat Sheet

By YuwebDesign

Unix/Linux vs Windows Command Line Cheat Sheet

Continue Reading >>>

Java for Beginners – Java Terminology explained

By YuwebDesign

Access (Visibility) Modifiers in Java

  1. help to restrict the accessibility (scope) of a class, constructor, variable, method or data member.
  2. specify which classes can access a given class and its fields, constructors and methods.
    sometimes referred to in daily speech as Java access specifiers.
  3. can be specified separately for a class, its constructors, fields and methods.
  4. Assigning an access modifier to a class, constructor, field or method
    is also sometimes referred to as “marking it as modifierName”.

    E.g., “marking the method as public”.

Continue Reading >>>

Top SQL Interview Questions (Query) 2019

By YuwebDesign

How to select all records from the table?

SELECT * FROM table_name;


Continue Reading >>>

Top SQL Interview questions (Theoretical) 2019

By YuwebDesign

What is SQL?

SQL stands for Structured Query Language. It is the standard language to operate a relational database management system (RDBMS, e.g., MYSQL). SQL is used to access and manipulate data in a database.
Standard SQL Commands are Select.
Continue Reading >>>