我想从“参与”表(名称,年份)中选择具有相同值的 3 个连续(按年份)记录:
Name Year
-------------
Carol 1999
Carol 2000
Carol 2001
Carol 2002
Faith 1996
John 2001
John 2002
John 2003
John 2009
Lyla 1994
Lyla 1996
Lyla 1997
Run Code Online (Sandbox Code Playgroud)
这是我的初始代码:
SELECT DISTINCT p1.name, p1.year
FROM participatition p1,
participatition p2
WHERE (p1.year = p2.year + 1 OR p1.year = p2.year - 1) AND p1.name = p2.name
ORDER BY p1.name, p1.year
Run Code Online (Sandbox Code Playgroud)
它返回所有连续记录,但我只想要满足 3 个连续条件的记录,即不是 Lyla:
Name Year
-------------
Carol 1999
Carol 2000
Carol 2001
Carol 2002
John 2001
John 2002
John …Run Code Online (Sandbox Code Playgroud)