SQL查詢獲取10行近值

Question

請幫我寫一個SQL查詢 - 我有一個表id,name和marks列。

如果我按照標記的升序排列表格，我如何獲取5個名稱與標記接近的名字。

Answer 1

像這樣的東西應該這樣做：

select id, name, marks 
from Marks 
where name <> 'User1' 
order by abs(marks - (select marks from Marks where name = 'User1')) 
limit 5 

Answer 2

的Microsoft SQL Server

SELECT TOP 10 column FROM table 

PostgreSQL和MySQL

SELECT column FROM table 
LIMIT 10 

奧拉CLE

SELECT column FROM table 
WHERE ROWNUM >= 3 AND ROWNUM < 10 

DB2

SELECT column FROM table 
FETCH FIRST 10 ROWS 

Answer 3

事情是這樣的：

select * 
from marks m 
order by abs(m.mark - (select m2.mark from marks m2 where m2.name = "John Doe")) 
limit 5;