Second Normal Form (2NF)
Second normal form (2NF) further addresses the concept of removing duplicative data:
Meet all the requirements of the first normal form.
Remove subsets of data that apply to multiple rows of a table and place them in separate tables.
Create relationships between these new tables and their predecessors through the use of foreign keys.
DFS the life without backtracking
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This site just records whatever technical questions which I encounter in study. Any discussion and comments are welcome.
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