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POsql show current instance
 

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    <p>here is the assignment that I had to face:</p> <p>List the employees who have transferred between departments during their employment. You should show their current department, and the date when the transferred to the current department. This is a pretty tough query. My solution was to use a subquery to determine which employees have been in more than one department, and use that result in the base query. </p> <p>The problem that I don't know how to display the employee who have been transfered and only once. The way to tell if the employee has been transfered is if in the EmployeeDepartmentHistory table, the employee id has been in more than one record (i.e. employeeID 1 is in both record 1 and record 2 because the person has been in two departments). How would I go about this? Here's what I have as of now:</p> <pre><code>SELECT EmployeeDepartmentHistory.EmployeeID,Person.Contact.FirstName, Person.Contact.LastName, Department.Name From HumanResources.Department INNER JOIN HumanResources.EmployeeDepartmentHistory ON HumanResources.Department.DepartmentID = HumanResources.EmployeeDepartmentHistory.DepartmentID INNER JOIN HumanResources.Employee ON HumanResources.EmployeeDepartmentHistory.EmployeeID = HumanResources.Employee.EmployeeID INNER JOIN Person.Contact ON HumanResources.Employee.ContactID = Person.Contact.ContactID WHERE EmployeeDepartmentHistory.EmployeeID=(SELECT COUNT(HumanResources.EmployeeDepartmentHistory.EmployeeID) FROM HumanResources.EmployeeDepartmentHistory WHERE EmployeeDepartmentHistory.EmployeeID = Employee.EmployeeID Group by EmployeeDepartmentHistory.EmployeeID) </code></pre>
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    1. COIt's an exercise we never got to in class. This is just for my personal knowledge
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A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

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