What are the different ways to optimize a sql query?

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Write a query to find second highest salary of an employee.

27 Answers  

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What is record in pl sql?

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Suppose a student column has two columns, name and marks. How to get name and marks of the top three students.

0 Answers  

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i have doubt that any one tell ref cursor comes in sql pl/sql? pls clarify?

4 Answers   Tech Mahindra,

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write a query to find 4th max salary

7 Answers  

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what is sql profiler? : Sql dba

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What is a full join sql?

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Explain architecture of sql server notification services?

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there are 2 variables called x and y ,x contains 1,2 and y contains 3,4 we have to swap the values from x to y and y to x with out using dummy variables and it can be done only by using a single statement ? how?

12 Answers   Oracle,

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How to find 3rd highest salary of an employee from the employee table in sql?

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define sql delete statement ? : Sql dba

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