can we write stored function in out parameters? how to call through select statement? how to written more than one value plz give the exmple?

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What does select * from mean in sql?

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How can we optimize a sql query?

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What is difference between ms sql and mysql?

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i have a table emp and columns ename,empno,mgr_id,i need ename,manager name as result i.e employee respective manager.. example empno ename mgr_id 1 john 3 2 paul 3 3 smith 1 4 kevin 1 5 stewart 2 result has to look like this ename manager john smith paul smith smith john kevin john stewart paul can u plz help me out in this.....

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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 are the two types of exceptions in pl/sql?

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How do I run a pl sql procedure in sql developer?

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can i use dbms_output.put_line in a function u are telling as return statement

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Are stored procedures faster than dynamic sql?

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Mention what is the use of function "module procedure" in pl/sql?

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Temporary table vs Table variable in sql server?

0 Answers   Wipro,

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