SELECT – Returning specific columns

There are many times where returning all the data held within all the columns in a table are unnecessary and inefficient.

For example.

SELECT * FROM HumanResources.Department

If you expand out the HumanResources.Department then you will get a list of the columns as well as some information on the columns.


To get only the DepartmentID and Name columns the following query would be needed.

SELECT DepartmentID,Name FROM HumanResources.Department


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