what is single value and Multivalue ?
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Answer / srav
A single valued attribute is one that holds a single value for a single entity. Example: roll_number, name etc
Multivalued attribute is one that holds multiple values for a single entity.
Example: degree behold by a person (MS, PhD)
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we have two tables emp,dept.emp has eno,ename,sal and dept has deptno,dname.how to find maxsal of each dept wise.which join used for joining.
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