BZU PAGES: Find Presentations, Reports, Student's Assignments and Daily Discussion; Bahauddin Zakariya University Multan

BZU PAGES: Find Presentations, Reports, Student's Assignments and Daily Discussion; Bahauddin Zakariya University Multan (http://bzupages.com/)
-   Introduction to Database (http://bzupages.com/314-introduction-database/)
-   -   Table Relations: and 6 properties of Relational Data Base Systems (http://bzupages.com/f314/table-relations-6-properties-relational-data-base-systems-2733/)

.BZU. 12-03-2009 03:08 AM

Table Relations: and 6 properties of Relational Data Base Systems
 
Table Relations: and 6 properties of Relational Data Base Systems


In data base table is called relation.

  • Each cell of a table contain only single value.
  • Each column has distinct name.
  • The values is the column comes from the same domain.
  • The order of column is immaterial. Its means we can create columns without having any orders.
  • Each tuples or rows are distinct.
  • The order of row or tuple is immaterial
Code:

select *
from student
order by name;

OR
Code:

select *
from student
order by subjects;

It shows that order of tuples does not matter in the data base tables.:book1:


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