what is primary key,unique key, foreign key? can u teach me
in simple language?
Answer Posted / sri lekha
a key to open primary school is primary key
a key for foreign schools is foreign key
answering this way is unique
Is This Answer Correct ? | 16 Yes | 44 No |
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if i want to display the name of students such that to which city they belong must have count greaer than two
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