Relation Equality A reader with an Object Oriented programming background might wonder why the Relational model in general, and SQL in particular, doesn’t have an equality operator. You'd think the first operator you'd implement for a data type, especially a fundamental data type, would be equality! Simple: this operator is not relationally closed, as the result is Boolean value and not a relation. - Study24x7
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27 Apr 2019 11:48 AM study24x7 study24x7

Relation Equality A reader with an Object Oriented programming background might wonder why the Relational model in general, and SQL in particular, doesn’t have an equality operator. You'd think the first operator you'd implement for a data type, especially a fundamental data ty...

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