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What are different types of Keys? Please explain all the
keys with a suitable example.
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Answer Posted / rishit v chandarana
there are main 5 types of key, namely
candidate key,
primary key,
alternative key,
secondary key &
foreign key i.e refrential key.
Ck- all keys in a table.
Pk- selected key in a table.
Al- not selected as a pk key in a table.
Sk- not selected at all.
Rk- key showing refrence at other table.
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