Data basis

Introduction to Databasis

1. About Me Syed Fahad Ahmed Ashrafi Working as Python BI Developer in Leading Company. Fahad Ashrafi

2. What is Data? In simple words, data can be facts related to any object in consideration. For example, your name, age, height, weight, etc. are some data related to you. A picture, image, file, pdf , etc. can also be considered data.

3. What is Database? A database is a systematic collection of data. They support electronic storage and manipulation of data. Databases make data management easy. Let us discuss a database example: An online telephone directory uses a database to store data of people, phone numbers, and other contact details. Your electricity service provider uses a database to manage billing, client-related issues, handle fault data, etc. Let us also consider Facebook. It needs to store, manipulate, and present data related to members, their friends, member activities, messages, advertisements, and a lot more. We can provide a countless number of examples for the usage of databases.

4. Types of Databases Relational databases : Object-oriented databases: Centralized database: Centralized database:

5. Importance of Database Storage is required in most applications

6. https://docs.python.org/3/tutorial/introduction.html

7. What is a Relational Database ? A  relational database  is a type of database. It uses a structure that allows us to identify and access data  in relation  to another piece of data in the database. Often, data in a relational database is organized into tables.

8. Tables: Rows and Columns Tables can have hundreds, thousands, sometimes even millions of rows of data. These rows are often called  records . Tables can also have many  columns  of data. Columns are labelled with a descriptive name (say, age for example) and have a specific  data type . For example, a column called age may have a type of INTEGER (denoting the type of data it is meant to hold).

9. Query the database Access Database SQL Parameter