Mysql 比较表的行和输出的差异

所以，在这里完成MYSQL新版本。我几乎不好意思发布这个问题，但这里是这样的：

所以，我有下表

CREATE TABLE IF NOT EXISTS cran_cisco (
id int not null auto_increment,
device_fqdn varchar(250) DEFAULT 0,
device_ip varchar(250) DEFAULT 0,
link_state varchar(250) DEFAULT 0,
line_protocol varchar(250) DEFAULT 0,
description varchar(250) DEFAULT 0,
date timestamp default now(),
PRIMARY KEY(id)
);

我已经创建了一个外部脚本来添加以下信息，一天四次。下面是它的一个摘录：

insert into cran_cisco (device_fqdn, device_ip, link_state, line_protocol, description)
    values ('test_box_2', '10.10.10.2', 'up', 'up', 'this is a test interface');
insert into cran_cisco (device_fqdn, device_ip, link_state, line_protocol, description)
    values ('test_box_2', '10.10.10.2', 'up', 'down', 'this is a test interface');
insert into cran_cisco (device_fqdn, device_ip, link_state, line_protocol, description)
    values ('test_box_2', '10.10.10.2', 'up', 'up', 'this is a test interface');
insert into cran_cisco (device_fqdn, device_ip, link_state, line_protocol, description)
    values ('test_box_2', '10.10.10.2', 'up', 'down', 'this is a test interface');
insert into cran_cisco (device_fqdn, device_ip, link_state, line_protocol, description)
    values ('test_box_2', '10.10.10.2', 'up', 'down', 'this is a test interface');
insert into cran_cisco (device_fqdn, device_ip, link_state, line_protocol, description)
    values ('test_box_2', '10.10.10.2', 'up', 'up', 'this is a test interface');
insert into cran_cisco (device_fqdn, device_ip, link_state, line_protocol, description)
    values ('test_box_2', '10.10.10.2', 'up', 'up', 'this is a test interface');
insert into cran_cisco (device_fqdn, device_ip, link_state, line_protocol, description)
    values ('test_box_2', '10.10.10.2', 'up', 'down', 'this is a test interface');
insert into cran_cisco (device_fqdn, device_ip, link_state, line_protocol, description)
    values ('test_box_2', '10.10.10.2', 'up', 'up', 'this is a test interface');

然后，该表将如下所示：

| id | device_fqdn | device_ip  | link_state | line_protocol | description              | date                |
+----+-------------+------------+------------+---------------+--------------------------+---------------------+
|  1 | test_box_2  | 10.10.10.2 | up         | down          | this is a test interface | 2016-10-07 08:16:42 |
|  2 | test_box_2  | 10.10.10.2 | up         | up            | this is a test interface | 2016-10-07 08:17:22 |
|  3 | test_box_2  | 10.10.10.2 | up         | up            | this is a test interface | 2016-10-07 08:23:55 |
|  4 | test_box_2  | 10.10.10.2 | up         | down          | this is a test interface | 2016-10-07 08:23:55 |
|  5 | test_box_2  | 10.10.10.2 | up         | up            | this is a test interface | 2016-10-07 08:23:55 |
|  6 | test_box_2  | 10.10.10.2 | up         | up            | this is a test interface | 2016-10-07 08:23:55 |
|  7 | test_box_2  | 10.10.10.2 | up         | down          | this is a test interface | 2016-10-07 08:23:55 |
|  8 | test_box_2  | 10.10.10.2 | up         | up            | this is a test interface | 2016-10-07 08:23:55 |
|  9 | test_box_2  | 10.10.10.2 | up         | up            | this is a test interface | 2016-10-07 08:23:55 |
| 10 | test_box_2  | 10.10.10.2 | up         | down          | this is a test interface | 2016-10-07 08:23:55 |
| 11 | test_box_2  | 10.10.10.2 | up         | up            | this is a test interface | 2016-10-07 08:23:57 |
+----+-------------+------------+------------+---------------+--------------------------+---------------------+

| id | device_fqdn | device_ip  | link_state | line_protocol | description              | date                |
+----+-------------+------------+------------+---------------+--------------------------+---------------------+
|  1 | test_box_2  | 10.10.10.2 | up         | down          | this is a test interface | 2016-10-07 08:16:42 |
|  4 | test_box_2  | 10.10.10.2 | up         | down          | this is a test interface | 2016-10-07 08:23:55 |
|  7 | test_box_2  | 10.10.10.2 | up         | down          | this is a test interface | 2016-10-07 08:23:55 |
| 10 | test_box_2  | 10.10.10.2 | up         | down          | this is a test interface | 2016-10-07 08:23:55 |
+----+-------------+------------+------------+---------------+--------------------------+---------------------+

我想开发一个查询，以便在线路协议或链路每次中断时报告。expect输出应该如下所示：

| id | device_fqdn | device_ip  | link_state | line_protocol | description              | date                |
+----+-------------+------------+------------+---------------+--------------------------+---------------------+
|  1 | test_box_2  | 10.10.10.2 | up         | down          | this is a test interface | 2016-10-07 08:16:42 |
|  2 | test_box_2  | 10.10.10.2 | up         | up            | this is a test interface | 2016-10-07 08:17:22 |
|  3 | test_box_2  | 10.10.10.2 | up         | up            | this is a test interface | 2016-10-07 08:23:55 |
|  4 | test_box_2  | 10.10.10.2 | up         | down          | this is a test interface | 2016-10-07 08:23:55 |
|  5 | test_box_2  | 10.10.10.2 | up         | up            | this is a test interface | 2016-10-07 08:23:55 |
|  6 | test_box_2  | 10.10.10.2 | up         | up            | this is a test interface | 2016-10-07 08:23:55 |
|  7 | test_box_2  | 10.10.10.2 | up         | down          | this is a test interface | 2016-10-07 08:23:55 |
|  8 | test_box_2  | 10.10.10.2 | up         | up            | this is a test interface | 2016-10-07 08:23:55 |
|  9 | test_box_2  | 10.10.10.2 | up         | up            | this is a test interface | 2016-10-07 08:23:55 |
| 10 | test_box_2  | 10.10.10.2 | up         | down          | this is a test interface | 2016-10-07 08:23:55 |
| 11 | test_box_2  | 10.10.10.2 | up         | up            | this is a test interface | 2016-10-07 08:23:57 |
+----+-------------+------------+------------+---------------+--------------------------+---------------------+

| id | device_fqdn | device_ip  | link_state | line_protocol | description              | date                |
+----+-------------+------------+------------+---------------+--------------------------+---------------------+
|  1 | test_box_2  | 10.10.10.2 | up         | down          | this is a test interface | 2016-10-07 08:16:42 |
|  4 | test_box_2  | 10.10.10.2 | up         | down          | this is a test interface | 2016-10-07 08:23:55 |
|  7 | test_box_2  | 10.10.10.2 | up         | down          | this is a test interface | 2016-10-07 08:23:55 |
| 10 | test_box_2  | 10.10.10.2 | up         | down          | this is a test interface | 2016-10-07 08:23:55 |
+----+-------------+------------+------------+---------------+--------------------------+---------------------+

任何帮助都将不胜感激。先谢谢你

正如承诺的那样，我的问题的答案如下。我还有一个问题要问，但问题是如何将所有这些都放到bash脚本中。哈哈

SELECT  'cran_juniper' AS `set`, c.*
FROM    cran_juniper c
WHERE   ROW(c.device_fqdn, c.device_ip, c.interface, c.admin_state, c.link_state, c.description) NOT IN
        (
        SELECT  device_fqdn, device_ip, interface, admin_state, link_state, description
        FROM    cran_juniper_baseline
        )
UNION ALL
SELECT  'cran_juniper_baseline' AS `set`, b.*
FROM    cran_juniper_baseline b
WHERE   ROW(b.device_fqdn, b.device_ip, b.interface, b.admin_state, b.link_state, b.description) NOT IN
        (
        SELECT  device_fqdn, device_ip, interface, admin_state, link_state, description
        FROM    cran_juniper
        )
into outfile 'today.csv'
FIELDS TERMINATED BY ','
ENCLOSED BY '"'
LINES TERMINATED BY '\n';
;

希望这有帮助

select * cran_cisco where line_protocol='down' or link_state='down'

---

您可以在

WHERE

子句中使用

或

条件来检查：

SELECT * from cran_cisco WHERE LINK_STATE = 'down' OR LINE_PROTOCOL = 'down'

如果您试图实现注释中所述的结果，您可以尝试按数据和设备排序，并创建滞后等效项，以跟踪设备第一次下降的时间

：

set @lags = 'start' ;   
set @lagp = 'start' ;  
select id, device_fqdn, device_ip, link_state, line_protocol, description, date from (
select *, @lags,@lagp, @lags:=link_state, @lagp := line_protocol from cran_cisco order by device_fqdn, date) c 
where (link_state = 'down' and @lags = 'up' ) or ( line_protocol = 'down' and @lagp = 'up')

每个

lag

变量显示前一行的值。然后，我们仅在

link\u state

或

line\u protocol

为

down

且前一行为up时从该结果中提取

---

我的朋友，你回答得对。我问错了。我会贴一个新的。非常感谢。@AndyD'Arata非常感谢您，但让我们来解决您的问题；）我通过大量的研究找到了答案！我会在帖子的底部添加答案，这样你就可以看到我的想法了。lolI猜想您想将该设备的每一行与前一行进行比较，看看链路状态和/或线路协议是否从上到下发生了变化，对吗？