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2920/206 Database management system - Database normalization topic notes
| Institution | Collage/university |
| Course | Diploma in informati... |
| Year | 2nd Year |
| Semester | Unknown |
| Posted By | MAKORI KERECHA |
| File Type | |
| Pages | 12 Pages |
| File Size | 165.81 KB |
| Views | 2786 |
| Downloads | 0 |
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Description
This is a topic lecture notes on database management system. Topic is database normalization. It explains what is normalization, use of delete, insert and update anomaly. Explains how to normalize 1,2,3,boy cord, 4 and 5th forms. It ends with outlining the advantages and disadvantages of database normalization.
Below is the document preview.
FRESH AND MARINE WATER COMMUNITIES (AQUATIC COMMUNITIES)
Communities associated with freshwater lakes, river valleys and areas that are permanently or temporarily waterlogged. Waterlogging is a result of drainage impediment. These communities are ecotones between dry land and open water. Wetlands are highly productive. They are species rich as they draw them from the adjacent ecosystems.
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EVOLUTION , VARIATION AND BREEDING MECHANISMS
Evolution is the change over time. It leads to diversity , structural complexity and adaptive nature of plants. Organic evolution is a series of transformations in the genetic material of a population over time .The primary cause of evolution is natural selection in
response to the changing environmental interactions
16 Pages
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SCIENTIFIC NAMING OF PLANTS( NOMENCLATURE)
Nomenclature is the correct naming of plants according to specified rules. Plants were known by their common names during the pre-scientific times. The use of common names however are limited to geographical locations or cultures.
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FORMATION OF SCIENTIFIC NAMES
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Names of plants may be formed in a number of ways;
1. Commemorative ; names may commemorate important persons; those have had major contributions in the science of plants
(Botany).
2. Plants may be named after geographical place or feature
3. Names may come from myths
4. Names be as a result of some character a plant
5. Names may describe the habitat
6. Names may also denote resemblance to another
7. Some plant names are derived from culture
10 Pages
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KAPSABET HIGH SCHOOL POST-MOCK 2024; C.R.E PP1 & PP2 Q&A
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SEVENTH DAY ADVENTIST MISSION FOR QUARTER 4
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This quarter we feature the North
American Division, which oversees the
Seventh-day Adventist Church’s work
in the United States, Canada, the French
possessions of St. Pierre and Miquelon, the
British overseas territory of Bermuda, the
U.S. territories of Guam, Wake Island, and
Northern Mariana Islands in the Pacific
Ocean, and three nearby states in free
association with the United States— Palau,
the Marshall Islands, and the Federated
States of Micronesia. The region is home
to 372 million people, including 1,224,769
Adventists. That’s a ratio of one Adventist for
every 304 people
32 Pages
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