sqlsql-server-2008selectrandomnewid

Select random rows from table

I want to select 24 Random rows from whole table of Admin_Pic_Lib, but this Query give syntax error, 

 SELECT top 24 CAST( [Pictures] AS varbinary(Max)) FROM Admin_Pic_Lib ORDER BY NEWID()

 UNION ALL 

  SELECT  CAST([Pictures] AS varbinary(Max))   FROM User_images  WHERE UserName ='ahmed'

When I am trimming ORDER BY NEWID() it only select top 24 rows.

Solution

  • Please try the below code.

    SELECT Pictures 
FROM 
    (SELECT TOP 24 CAST([Pictures] AS varbinary(Max)) AS Pictures 
     FROM Admin_Pic_Lib ORDER BY NEWID()) AS X

 UNION ALL 

  SELECT  CAST([Pictures] AS varbinary(Max)) AS Pictures 
  FROM User_images
  WHERE UserName ='ahmed'