Can primary key be changed?

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C. Normalize the following data up to the 3rd Normal form. Create the tables and insert the data given. Emp_ID Name Dept_Name Salary Course_Title Date_Completed 100 Adam Marketing 48,000 SPSS 6/19/2008 Surveys 10/7/2008 140 Bob Accounting 52,000 Tax Acc 12/8/2008 110 Cathy IT SQL Server 1/12/2008 C# 4/22/2008 190 Dan Finance 150 Emily Marketing 55,000 SPSS 6/16/2008 42,000 Analysis 8/12/2008 Queries 1. Find all Names who have completed the SPSS Course. 2. Find employee with max salary. 3. Find employee with 2nd max salary. 4. Find all employees in Dept “Marketing”. 5. Find all the employees who have taken more than 2 courses. 6. Find all the employees who have completed the courses before month of September.

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What is the difference between nvl function, ifnull function, and isnull function?

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what are the drivers in mysql? : Sql dba

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how to select unique records from a table? : Sql dba

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Difference between views and materialized views?

5 Answers   BirlaSoft,

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Give the order of sql select?

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What is sql in java?

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Does mysql_real_escape_string prevent sql injection?

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How many types of relationship are there?

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Is coalesce faster than isnull?

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What does truncate mean in sql?

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