What are normalisation and normalisation

What are normalisation and normalisation

What is the difference between pull and fetch? 53. What is the difference between merge and rebase? 54. What is the difference between composer.json and composer.lock ? 55. What is the difference between require and require-dev in composer.json? 56. How to configure autoload through composer? 57. What is a trait and how to use it? 58. How to make sessions not save in a file? 59. What is the difference between self and this? 60. What are aggregate functions? 61. What is an What groups of answer codes do you knoW.

What are primary and foreign keys

How to connect to a database in PHP? 64. How to get data from a database in PHP? 65. What are indexes in MySQL? 66. What is the purpose of transactions? Tell us about the principle of work. 67. Is it possible to cancel a transaction? How to do it? 68. What Bosnia and Herzegovina Phone Number List types of connections do you know in databases? How are they different? 69.? 70. Can a primary key be null? 71. What are indexes? 72. What is the difference between MyISAM vs InnoDB? 73. What is a JOIN? 74 . What are the types of JOIN and what is the difference? 75. WHERE and HAVING? 76.? Practical tasks.

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What is the difference between

This class is spelle incorrectly. For you to rewrite? < ? php class Shape { public width ; public height ; public function __construct ( width, height ) { this – > width = width ; this – > height = height ; } } class Triangle { public radius ; public function __construct ( radius ) { this – > radius = radius ; } } class AreaCalculator { public function calculate ( shapes ) { foreach ( shapes as shape ) { i an email address using regular expressions. 84. Write a PHP AERO Leads function to sort an array of integers in ascending order using the bubble sort algorithm. 85. Write a PHP function to remove all duplicate values ​​from an array. 86. Create a PHP class that implements a queue data structure.

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