Tags » Recursive

Authoritative vs. Non-Authoritative (Recursive) DNS Servers: What’s The Difference?

Authoritative name servers store DNS record information –usually a DNS hosting provider or domain registrar. Recursive name servers are the “middlemen” between authoritative servers and end-users because they have to recurse up the DNS tree to reach the name servers authoritative for storing the domain’s records. 256 more words

DNS

Funny one - but it doesn't crash

Would you expect this SwiftUI code to crash or otherwise fail to run?

struct ContentView: View {
    var body: some View {
        NavigationView {
            NavigationLink(destination: ContentView()) {
                Text("Show another")
            }.navigationBarTitle("Recursive navigation")
        }
    }
} 20 more words
SwiftUI

LeetCode - Binary Tree Cameras [HARD]

Introduction

The Binary Tree Cameras problem focusses on the binary tree data structure, a form of graph. The high-level aim being to add a ‘camera’ to the least number of nodes such that every node is either a camera or has an edge that connects to a node with a camera. 2,107 more words

Leetcode

The recursive RTFD document: a seriously weird problem

I’m still not sure how it arose, but I’ve managed to generate a seriously weird RTFD document. It behaves in many respects as you’d expect, but trying to copy it to iCloud threw either of two strange error alerts. 288 more words

Technology

Recursive query in MsSQL | Code Factory

CREATE TABLE menu_master (
    id int NOT NULL,
    menu_name varchar(45) NOT NULL,
    menu_action varchar(45) NOT NULL,
    parent_id int NOT NULL,
    menu_order int DEFAULT NULL,
    PRIMARY KEY (id)
);
… 278 more words
DB

Improved Caesar Cipher with Random Number Generation Technique and Multistage Encryption

S G Srikantaswamy and H D Phaneendra

National Institute of Engineering, Mysore,India

ABSTRACT 

Secured Communication involves Encryption process at the sending end and Decryption process at the receiving end of the communication system. 224 more words

Cryptography And Information Security

Recursive query in PostgreSQL | Code Factory

WITH RECURSIVE menu_tree AS (
	SELECT mm.id,
		mm.menu_name,
		mm.menu_action,
		mm.parent_menu_id,
		mm.menu_order,
		1 AS level,
		ARRAY AS path_info
	FROM menu_master mm
	WHERE mm.parent_menu_id = 0
	UNION ALL
	SELECT c.id,
		c.menu_name,
		c.menu_action,
		c.parent_menu_id,
		c.menu_order,
		p.level + 1,
		(p.path_info || c.menu_order::bigint) || c.id
	FROM menu_master c
	JOIN menu_tree p ON c.parent_menu_id = p.id
)
SELECT mt.id,
	mt.menu_name,
	mt.menu_action,
	mt.parent_menu_id,
	mt.menu_order,
	mt.level,
	mt.path_info
FROM menu_tree mt
ORDER BY mt.path_info;

DB