如何根据选定的行获取上一行和下一行？

Question

我正在尝试获取确切的T-SQL语句来获取所选行的上一行和下一行.这是下面给出的表格.

表名:MyExTab

ID      Name     Address       Age    Nationality
------  -------  -----------   -----  -----------
1160    Kate     New Jersey    28     American
1161    Kelly    Connecticut   32     American
1162    Jenny    New York      30     American
1163    Heather  New York      29     American
1164    Ashley   Pennsylvania  29     American

如果我想使用表示行的ID = 1162查询行

ID      Name     Address       Age    Nationality
------  -------  -----------   -----  -----------
1162    Jenny    New York      30     American

它应该只返回基于所选行ID的上一行和下一行的两行,如下所示.

ID      Name     Address       Age    Nationality
------  -------  -----------   -----  -----------
1161    Kelly    Connecticut   32     American
1163    Heather  New York      29     American

请给予帮助.谢谢

Answer 1

试试吧

DECLARE @tbl TABLE(ID INT,Name VARCHAR(100));
INSERT INTO @tbl VALUES
 (1160,'Kate')
,(1161,'Kelly')
,(1162,'Jenny')
,(1163,'Heather')
,(1164,'Ashley');

DECLARE @id INT=1162;

查询将查找给定参数的最小较大和最小较小 ID

SELECT * 
FROM @tbl AS t
WHERE ID = (SELECT MIN(x.ID) FROM @tbl AS x WHERE x.ID>@id)
   OR ID = (SELECT MAX(x.ID) FROM @tbl AS x WHERE x.ID<@id)