How do you update a sql procedure?

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What is hibernate and its relation to sql?

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Is pl sql different from sql?

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What is a scalar value in sql?

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Which type of cursor is used to execute the dml statement?

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how can you see all indexes defined for a table? : Sql dba

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What are all the different normalization?

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In a distributed database system, can we execute two queries simultaneously?

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What is a rank in sql?

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How is pl sql different from sql?

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how to check the 3rd max salary from an employee table? One of the queries used is as follows: select sal from emp a where 3=(select count(distinct(sal)) from emp b where a.sal<=b.sal). Here in the sub query "select count(distinct(sal)) from emp b where a.sal<=b.sal" or "select count(distinct(sal)) from emp b where a.sal=b.sal" should reveal the same number of rows is in't it? Can any one here please explain me how is this query working perfectly. However, there is another query to get the 3rd highest of salaries of employees that logic I can understand. Pls find the query below. "select min(salary) from emp where salary in(select distinct top 3 salary from emp order by salary desc)" Please explain me how "select sal from emp a where 3=(select count(distinct(sal)) from emp b where a.sal<=b.sal)" works source:http://www.allinterview.com/showanswers/33264.html. Thanks in advance Regards, Karthik.

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What is record variable?

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