DB a table for the category and another table for the subcategory with similar fields, why?

DB a table for the category and another table for the subcategory with
similar fields, why?



1.Periodic table - Wikipedia, the free encyclopedia

Description:A period is a horizontal row in the periodic table. Although
groups generally have more significant periodic trends, there are regions
where horizontal trends are ...



2.SQL SERVER – Insert Data From One Table to Another Table ...

Description:15-08-2007 · Following three questions are many time asked on
this blog. How to insert data from one table to another table efficiently?
How to insert data from one ...



3.Decibel - Wikipedia, the free encyclopedia

Description:The decibel (dB) is a logarithmic unit used to express the
ratio between two values of a physical quantity, often power or intensity.
One of these quantities is often ...



4.Free woodworking plans

Description:Free woodworking plans. Below you will find some of the free
woodworking plans to be found on the net. Much of the information was
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5.Apple - iTunes - Podcasts - Making a Podcast

Description:This document covers the following topics: Submission and
Feedback Processes. Creating Your Feed and the Importance of Good
Metadata; Understanding the iTunes Client ...



6.DB2 Universal Database - IBM

Description:DB2 Information Center home DB2 documentation and help Feature
of this information center Navigating and searching Displaying topics in
your preferred language



7.Search - Joomla! Extensions Directory

Description:Assuming table is required, the following results were found.



8.Committee on Radio Astronomy Frequencies

Description:Committee on Radio Astronomy Frequencies www.craf.eu. Welcome
to the web-pages of the Committee on Radio Astronomy Frequencies (CRAF)
CRAF is an Expert Committee of ...



9.1000 SAP ABAP Interview Questions and Answers | ABAP ...

Description:WHERE . 6. Name the ABAP/4 key words, which are used to change
the contents of database table. UPDATE or MODIFY. 7. How to specify a
client for database table processing.



10.MySQL :: MySQL 5.0 Reference Manual :: 13.2.8 SELECT Syntax

Description:Each select_expr indicates a column that you want to retrieve.
There must be at least one select_expr. table_references indicates the ...