One to one relation

Sixth Chapter Lesson-8 : Database Relation and it’s classification.

At the end of this lesson- 1. You will be able to explain database relation. 2. You will be able to describe the conditions of database relation. 3. You will be able to explain classification of database relation.   Database Relation: Relation between records of a table with the records of another table of a database is called database relation. Condition for making database relation: There must have one common field between relational tables and data type, field size and format must be same for that common field. There must have a primary key field on at least...
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