Question

Query:

SELECT * FROM station

Output:

id | stationname | total
-------------------------
 1 | Khar        | 5
 2 | SantaCruz   | 3
 3 | Sion        | 2
 4 | VT          | 1
 5 | newFort     | 3
 6 | Bandra      | 2
 7 | Worli       | 1
 8 | Sanpada     | 3
 9 | Joe         | 2
10 | Sally       | 1
11 | Elphiston   | 2
12 | Currey Road | 1

Is it possible to display all the record but with a condition that will display particular record at 1st position and below then display rest all records

E.g. my where condition is

where id=10

Desired output:

id | stationname | total
-------------------------
10 | Sally       | 1
 1 | Khar        | 5
 2 | SantaCruz   | 3
 3 | Sion        | 2
 4 | VT          | 1
 5 | newFort     | 3
 6 | Bandra      | 2
 7 | Worli       | 1
 8 | Sanpada     | 3
 9 | Joe         | 2
11 | Elphiston   | 2
12 | Currey Road | 1

Any idea, hint will be appreciated

Answer 1

You can union two different query using UNION ALL like this:

SELECT * FROM Station WHERE ID=10
UNION ALL
SELECT * FROM Station WHERE ID<>10

See this SQLFiddle

---

Update (related to returned order is undefined)

If you see the execution plan of both queries (using UNION and UNION ALL), the query using UNION will sort the result while the query using UNION ALL will not sort the result. see execution plan of both queries in this SQLFiddle.

Execution Plan using UNION query:

Execution Plan using UNION ALL query:

I found this from SQL SERVER – Introduction and Example of UNION and UNION ALL