Question

我有一张如下表格。

Name            flag
--------------------------------
ABC             success
DEF             fail
GHI             success
JKL             fail
MNO             fail
PQR             fail
STU             fail

我必须在下面的记录中获得成功＆＃34; flag record。我已经尝试了几次，但我是mysql的新手。

我的记录应该是： -

Name            flag
--------------------------------
JKL             fail

Answer 1

1）我考虑了'id'列来考虑下一条记录

  select * from yourtable where id = (select id from yourtable where flag='success')+1

或

2）我也考虑过使用rownum

CREATE TABLE yourtable
    (`Name` varchar(3), `flag` varchar(7))
;

INSERT INTO yourtable
    (`Name`, `flag`)
VALUES
    ('ABC', 'fail'),
    ('DEF', 'fail'),
    ('GHI', 'success'),
    ('JKL', 'fail'),
    ('MNO', 'fail'),
    ('PQR', 'fail'),
    ('STU', 'fail')
;

create temporary  table t1 as 

select name,flag,@rownum:=@rownum+1 as rownum
from yourtable ,(SELECT @rownum := 0) as r;

select name,flag from t1 where rownum = 
(select rownum from t1 where flag='success')+1

点击此处 - http://sqlfiddle.com/#!9/cbd4b/5

Answer 2

SELECT *
FROM [Table_1]
WHERE [Table_1].id > (SELECT [Table_1].id FROM [Table_1] WHERE flag = 'success')
LIMIT 1

应该在旗帜＆＃34;成功＆＃34;

之后返回第一行

Answer 3

如果您有兴趣使用Windows功能。

选择*，引导（标记，成功）（按名称排序）作为next_comm 来自yourtable;

如何在特定条件下从表中获取最接近的记录

3 个答案: