Doubtly
@Doubtly · Joined Feb 2021
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- Discuss the role of Database Administrator. A Database Administrator (DBA) is a professional responsible for managing, maintaining, and securing a company's database system. The role o... 1
- Explain three level schema architecture of DBMS. The three-level schema architecture is a conceptual model used in database management systems (DBMS) to describe the overall design of a dat... 1
- Differentiate between file system and database system with an example. File System Database System Organizes data into files and directories Organizes data into tables, rows, and columns Accessed through a hiera... 1
- differentiates between Prim's Algorithm and Kruskal's Algorithm: Prim's Algorithm Kruskal's Algorithm A greedy algorithm that finds the minimum spanning tree (MST) of a weighted undirected graph. Another g... 1
- What is the difference between an algorithm and a program? AlgorithmProgram A series of instructions designed to solve a specific problem or accomplish a specific task.A set of instructions written i... 1
- How to Create a Calculator GUI with Python Tkinter as shown in Image ? Hey , to build this calculator you need to have a basic idea of python & tkinter GUI Here is Your Code :: import tkinter as tk import tkinte... 1
- Explain Views & Trigger with an example. Views and triggers are two important database objects used to improve the functionality and security of a database. Here's an explanation of... 1
- Explain DCL commands with an example. DCL (Data Control Language) commands are used to control access to a database. Here's an explanation of two common DCL commands with example... 1
- Explain any four DML commands with an example. DML (Data Manipulation Language) commands are used to manipulate data in a database. Here are four common DML commands with examples of thei... 1
- Explain any four DDL commands with an example. DDL (Data Definition Language) commands are used to create, modify, and delete database objects such as tables, indexes, and constraints. He... 1
- Define Super Key, Candidate Key, Primary Key and Foreign Key In relational database design, there are several types of keys that are used to define relationships between tables. Here are the definition... 1
- Explain any five relational algebra operators with an example. Relational algebra is a theoretical framework that describes a set of mathematical operators used to manipulate and query relational databas... 1
- How can I create a registration form using tkinter and connect it to a MySQL database? To create a registration form using tkinter and connect it to a MySQL database, you can follow these steps: Step 1: Import Required Modules... 1
- Characteristics of Databases Databases are critical for storing, managing, and analyzing data. A database is a collection of data that is organized in a structured forma... 1
- Draw an E-R diagram of Library Management System. +--------+ | Book | +--------+ | BookID | | Title | | Author | | ISBN | +--------+ | | | +-------------------+----------------------+ | | |... 1
- Explain Generalization & Specialization with an example. Generalization: Generalization is a reverse process of abstraction in which differences among several entity types are suppressed i.e. commo... 1
- what would be consequences of deficiency of haemoglobin in body Haemoglobin is a critical component of our blood as it is responsible for transporting oxygen from the lungs to the body's tissues and organ... 1
- ssc maharashtra board maths 2 question paper 2022 with solution