Query cost - Guides d'étude, Notes de cours & Résumés

Topic 1, Main Questions (240 Main Questions) IS management has decided to rewrite a legacy customer relations system using fourth generation languages (4GLs). Which of the following risks is MOST often associated with system development using 4GLs? A. Inadequate screen/report design facilities B. Complex programming language subsets C. Lack of portability across operating systems D. Inability to perform data intensive operations Answer: D Explanation: 4GLs are usually not suitab...

Exam (elaborations) TEST BANK FOR Microsoft Certified Azure Fundamenta irewall 78 Web Application Firewall 80 Network Security Groups 81 Application Security Groups 83 User-Defined Routes 83 Azure DDoS Protection 84 Authentication and Authorization 84 Azure Active Directory 84 Authentication and Authorization 86 Azure Multifactor Authentication 87 Conditional Access 87 Single Sign-On (SSO) 88 Security Tools and Features 88 Azure Security Center 88 Azure Key Vault 90 Azure Inform...

Dit is de samenvatting van het tiende hoorcollege databanken. In deze samenvatting werd informatie uit zowel de slides, als eventuele extra notities bij de slides opgenomen. Onderwerpen: Verwerken van queries Query cost External mergesort Materialisatie en pipelining Query optimalisatie