When groups are based on a value using either the group-by or group-adjacent attribute, the key value associated with the current group is returned using the XPath 2.0 function _____.
A) current-key()
B) grouping-key()
C) current-grouping-key()
D) key()

Question

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The Answer of When groups are based on a value using either the group-by or group-adjacent attribute, the key value associated with the current group is returned using the XPath 2.0 function _____.
A) current-key()
B) grouping-key()
C) current-grouping-key()
D) key()

When Groups Are Based on a Value Using Either the Group-By