How can I select from list of values in SQL Server

Question

I have very simple problem that I can\'t solve. I need to do something like this:

select distinct * from (1, 1, 1, 2, 5, 1, 6).

Anybody can

Answer 1

Available only on SQL Server 2008 and over is row-constructor in this form:
You could use

SELECT DISTINCT * FROM (VALUES (1), (1), (1), (2), (5), (1), (6)) AS X(a)

Many wrote about, among them:

• [MS official] https://docs.microsoft.com/en-us/sql/t-sql/queries/table-value-constructor-transact-sql
• http://www.sql-server-helper.com/sql-server-2008/row-value-constructor-as-derived-table.aspx

Answer 2

Another way that you can use is a query like this:

SELECT DISTINCT
    LTRIM(m.n.value('.[1]','varchar(8000)')) as columnName
FROM 
    (SELECT CAST('<XMLRoot><RowData>' + REPLACE(t.val,',','</RowData><RowData>') + '</RowData></XMLRoot>' AS XML) AS x
     FROM (SELECT '1, 1, 1, 2, 5, 1, 6') AS t(val)
    ) dt
  CROSS APPLY 
    x.nodes('/XMLRoot/RowData') m(n);

Answer 3

This works on SQL Server 2005 and if there is maximal number:

SELECT * 
FROM
  (SELECT ROW_NUMBER() OVER(ORDER BY a.id) NUMBER
  FROM syscomments a
  CROSS JOIN syscomments b) c
WHERE c.NUMBER IN (1,4,6,7,9)

Answer 4

Select user id from list of user id:

SELECT * FROM my_table WHERE user_id IN (1,3,5,7,9,4);

Answer 5

If it is a list of parameters from existing SQL table, for example ID list from existing Table1, then you can try this:

select distinct ID
      FROM Table1
      where 
      ID in (1, 1, 1, 2, 5, 1, 6)
ORDER BY ID;

Or, if you need List of parameters as a SQL Table constant(variable), try this:

WITH Id_list AS (
     select ID
      FROM Table1
      where 
      ID in (1, 1, 1, 2, 5, 1, 6)
)
SELECT distinct * FROM Id_list
ORDER BY ID;

Answer 6

A technique that has worked for me is to query a table that you know has a large amount of records in it, including just the Row_Number field in your result

Select Top 10000 Row_Number() OVER (Order by fieldintable) As 'recnum' From largetable

will return a result set of 10000 records from 1 to 10000, use this within another query to give you the desired results