Question

Criteria to be fulfilled for a table to be in 1NF
a. Each column need to be unique
b. Each table column should contain single value
c. Each table row should contain single value
d. Each record need to be unique

Answer 1

I think all the above options are required for a table to

be in 1NF i.e. First Normal Form.

First Normal Form sets the basic rules for database normalization

and simplification. A database table needs to have unique columns because

searching with duplicate entries is complex.  

Also, there cannot be any multiple entries in any single

field hence each table row and table column must contain single value.

Answer 2

"Answer: Each table column should contain a single value

1NF is a First Normal Form in a relational database. In a computer both software and hardware are used. IN software both front end and backend were used.

The database is a back end software which supports to run the front end.1NF is a first normal form which contains domain attribute which has individual values.

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