WikiDBA

As we know ORDER BY clause used to sort result as per specified order – where it may be ASC or DESC. Its sort the result set by specified columns. Its all depends on columns data type.

But in practical environment, sometimes we need result set in a specific order, for example some values should be always on top and its does not matter what are these values, but it should be on top of result set. For example here are some indian cities listed in ASC order as

Now we want New Delhi and Mumbai always on top in List, The syntax for same will be as

SELECT CityName FROM Table1
ORDER BY CASE WHEN CityName =‘New Delhi’ THEN ‘1’
              WHEN CityName = ‘Mumbai’ THEN   ‘2’
              ELSE CityName END ASC