Question

如何获取SQL查询当前数据上一条和下一条的记录？

Answer 1

方法一：
查询上一条记录的SQL语句（如果有其他的查询条件记得加上other_conditions以免出现不必要的错误）：
1
select * from table_a where id = (select id from table_a where id < {$id} [and other_conditions] order by id desc limit 1) [and other_conditions];
查询下一条记录的SQL语句（如果有其他的查询条件记得加上other_conditions以免出现不必要的错误）：
1
select * from table_a where id = (select id from table_a where id > {$id} [and other_conditions] order by id asc limit 1) [and other_conditions];