Database - Database Design Using Normalization - Discussion
Discussion Forum : Database Design Using Normalization - General Questions (Q.No. 5)
5.
Using the SQL GROUP BY phrase with a SELECT statement can help detect which of the following problems?
Discussion:
4 comments Page 1 of 1.
Shikha said:
1 decade ago
Kindly explain how?
Archana said:
1 decade ago
Please explain me how.
Divyans said:
1 decade ago
Please explain..
Rakesh said:
1 decade ago
Firstly usage of group by in select statement is to get the content by reference with one column like.
Select max(esal) from emp group by dept;.
Then it gives us the max salary in department wise, We may have many employees are working in a department so we can organize it in department wise, by this we can get only the particular department details although we have the duplicate values in salary, so we get consistent data.
Select max(esal) from emp group by dept;.
Then it gives us the max salary in department wise, We may have many employees are working in a department so we can organize it in department wise, by this we can get only the particular department details although we have the duplicate values in salary, so we get consistent data.
(3)
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