sql - Creating object like entries with levelup DB, relating keys -

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i'm no aficionado of databases , i'm new level i've dealt sql. question seems simple, while can put , key value pairs in level, how create record more attributes?

so have key="president" , value="nixon", how can give value attributes? ie: 

"nixon":[{"approvalrating": 10, "suitcolor":"blue", "firstname":"richard"}]

how can interact level results this?

thanks

the value can object instead of "nixon" pass in 

{     lastname: 'nixon',     firstname:'richard'     approvalrating: 10,      suitcolor:'blue' }

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