SQLITE DATABASE DESIGN TUTORIAL HOW TO
SQLITE DATABASE DESIGN TUTORIAL SERIES

This relationship is implemented in two ways:

Given country, and in the second case, he is not. So, in the first case, he is a citizen of a That is, the PassportID field in the Citizen table and the CitizenID field in the PassportData table must refer to the same record as if it were one entity (table) that was illustrated in paragraph 1.1.1.Įxample here would be a person who can have passport data and may not It is also important to guarantee the integrity of both the CitizenID field and the PassportData table, to provide a one-to-one relationship. Whereas, the passport data entity has the CitizenID attribute (field) that refers to the CitizenID primary key of the Citizen table. The citizen entity contains the PassportID attribute (field) that refers to the primary key of the PassportData table. The Citizen table represents the citizen entity, and the PassportData table represents the entity of the citizen’s passport data. The relationship between the Citizen and PassportData entities Here, the Citizen table represents the citizen entity, and the PassportData attribute (field) contains all passport data of a citizen and cannot be empty (NOT NULL)ġ.1.2.

A one-to-one relationshipĪ citizen with a passport (every citizen must have a passport, and a Let me give a detailed description of 7 normal forms: 1. To design database schemas, let us recall 7 normal forms and the very concepts of normalization and denormalization.

Designing a database schema for recruitment.

I will use dbForge Studio for SQL Server to implement charts for my examples, and dbForge Data Pump to import and export data.

SQLITE DATABASE DESIGN TUTORIAL HOW TO

Now, as for the articles that will follow, there, I will show you how to populate a database with data by means of Data Generator for SQL Server, and search for database data and objects with the free dbForge Search tool. In this part, I will write about the basics of relational database design and illustrate MS SQL Server database design for a recruitment service.

SQLITE DATABASE DESIGN TUTORIAL SERIES

In this series of articles, I will indulge myself a little bit with some non-technical examples from my life in an attempt to break rigorous technical writing. The maximum range of use is filtering by companies and partially by skills. As I know that none of the existing services allows quick evaluation of a candidate, creation of intricate filters on certain skills, projects, or positions, or exclusion of certain skills, positions, or projects. One Friday evening, I was coming home from work on a commuter train, and I was thinking of creating a kind of recruitment service. It is a common practice that a DB architect has to design a relational database tailored to a particular solution.

Sqlite database design tutorial