Ebay Interview Question
AnalystsCountry: United States
Interview Type: Phone Interview
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WHERE is a condition on individual rows just like noraml select .....from.
HAVING clause introduces a condition on aggregations(results from the group by ... clause )i.e. results of selection where a single result, such as count, average, min, max, or sum, has been produced from multiple rows.
ex:
query to get employees whose salary is grater than 10000.
query to get count of duplicate employees(based on empno)
- vijay.edella August 26, 2014