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Hcl Technologies 3+ Experienced Sql server Questions
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Answer Posted / swapna
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2 Tables will be there
Namely Employee having columns like Empid,Empname,Salary,Mgrid.
Phone Table having Empid and Phone number.
Based on these some questions like this
1) select all the Employees who does not have phone?
2)Dispaly all managers from table(Manager id is same as Empid)
3)How to know How many tables contain Empno as a column in database?
4)Find duplicate rows in a table or if we have table with one column which
has many records which are not distinct. How to find out the distinct
values from that column and number of times it's repeated?
5) How to delete the rows which are duplicate?(Don't remove both duplicate
records.)
6)How to find the 6th highest salary?
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