在多个表中仅查找具有 children 特定状态的 parent 记录

Question

我需要所有相关 children 记录都处于关闭状态的所有工单。因此，如果 children 之一是其他东西，我不希望结果集中的票。

我尝试使用反连接模式，但我的问题是 children 生活在不同的 tables。

t1: 门票 t2：相关记录 t3: child1 t4: child1

select ticket.ticketid, rr.relatedrecordkey, rr.relatedrecordclass, c1.id, c1.status, c2.id, c2.status
from ticket
inner join relatedrecord rr on rr.recordkey = ticket.ticketid and rr.class = ticket.class
left join child1 c1 on c1.id = rr.relatedreckey and c1.class = rr.relatedrecclass
left join child2 c2 on c2.id = rr.relatedreckey and c2.class = rr.relatedrecclass

结果：

+----------+--------+-----------+-------+-----------------+---------------+--------+--------+--------+--------+
| ticketid | status | RECORDKEY | class | RELATEDRECCLASS | relatedreckey |   id   | status |   id   | status |
+----------+--------+-----------+-------+-----------------+---------------+--------+--------+--------+--------+
|     1183 | NEW    |      1183 | SR    | WORKORDER       |          1238 | 1238   | NEW    | (null) | (null) |
|     1183 | NEW    |      1183 | SR    | SR              |          1184 | (null) | (null) | 1184   | NEW    |
|     1185 | NEW    |      1185 | SR    | WORKORDER       |          1239 | 1239   | CLOSE  | (null) | (null) |
|     1185 | NEW    |      1185 | SR    | SR              |          1186 | (null) | (null) | 1186   | CLOSE  |
|     1187 | NEW    |      1187 | SR    | WORKORDER       |          1240 | 1240   | CLOSE  | (null) | (null) |
|     1187 | NEW    |      1187 | SR    | SR              |          1188 | (null) | (null) | 1188   | NEW    |
|     1190 | NEW    |      1190 | SR    | SR              |          1191 | (null) | (null) | 1191   | CLOSE  |
|     1192 | NEW    |      1192 | SR    | WORKORDER       |          1241 | 1241   | CLOSE  | (null) | (null) |
+----------+--------+-----------+-------+-----------------+---------------+--------+--------+--------+--------+

所以

ticket 1183有两条相关记录，均未关闭。（拒绝）
工单1185有两条相关记录，均已关闭（接受）
ticket 1187有两条相关记录，一条是new，一条是closed。（拒绝）
工单 1190 有一条相关记录已关闭（接受）
工单 1192 有一条相关记录（不同 table）已关闭（接受）
工单1189无相关记录（拒绝）

从这个集合中，我只想在结果集中看到票 1185、1190、1192。它应该看起来像：

+----------+--------+-----------+-------+-----------------+---------------+--------+--------+--------+--------+
| ticketid | status | RECORDKEY | class | RELATEDRECCLASS | relatedreckey |   id   | status |   id   | status |
+----------+--------+-----------+-------+-----------------+---------------+--------+--------+--------+--------+
|     1185 | NEW    |      1185 | SR    | WORKORDER       |          1239 | 1239   | CLOSE  | (null) | (null) |
|     1185 | NEW    |      1185 | SR    | SR              |          1186 | (null) | (null) | 1186   | CLOSE  |
|     1190 | NEW    |      1190 | SR    | SR              |          1191 | (null) | (null) | 1191   | CLOSE  |
|     1192 | NEW    |      1192 | SR    | WORKORDER       |          1241 | 1241   | CLOSE  | (null) | (null) |
+----------+--------+-----------+-------+-----------------+---------------+--------+--------+--------+--------+

我试过类似的方法：

select ticket.ticketid, rr.relatedrecordkey, rr.relatedrecordclass, c1.id, c1.status, c2.id, c2.status
from ticket
inner join relatedrecord rr on rr.recordkey = ticket.ticketid and rr.class = ticket.class
where not exists (
    select 1 from child1 c1
    where c1.id = rr.relatedreckey and c1.class = rr.relatedrecclass
    and c1.status <> 'CLOSE'
) and not exists (
    select 1 from child2 c2
    where c2.id = rr.relatedreckey and c2.class = rr.relatedrecclass
    and c2.status <> 'CLOSE'
)

这导致 ticket2 的两行和来自 ticket 3 的一行（因为它有一个 child 已关闭）我有点困惑如何正确解决这个问题。

Answer 1

仍然不太确定你想要什么结果，但我想可能就是这样。

select *
from
(
    select t.ticketid
    from ticket t
    join relatedrecord rr on rr.recordkey = t.ticketid and rr.class = t.class
    join child1 c1 on c1.id = rr.relatedreckey 
        and c1.class = rr.relatedrecclass
        and c1.status = 'CLOSE'
    group by t.ticketid
    having MAX(c1.status) = MIN(c1.status)
    UNION ALL
    select t.ticketid
    from ticket t
    join relatedrecord rr on rr.recordkey = t.ticketid and rr.class = t.class
    join child2 c2 on c2.id = rr.relatedreckey 
        and c2.class = rr.relatedrecclass
        and c2.status = 'CLOSE'
    group by t.ticketid
    having MAX(c2.status) = MIN(c2.status)
) x
group by ticketid

Answer 2

我找到了有效的答案。

查看此 sqlfiddle：http://sqlfiddle.com/#!3/febde/24

SELECT ticket.ticketid,
   count(rr.relatedreckey) AS children,
   count(wo.id) AS wo,
   count(tt.id) AS sr
FROM ticket
INNER JOIN relatedrecord rr ON rr.recordkey = ticket.ticketid
AND rr.class = ticket.class
LEFT JOIN child1 wo ON wo.id = rr.relatedreckey
AND wo.class = rr.relatedrecclass
AND wo.status = 'CLOSE'
LEFT JOIN child2 tt ON tt.id = rr.relatedreckey
AND tt.class = rr.relatedrecclass
AND tt.status = 'CLOSE'
GROUP BY ticket.ticketid 
HAVING (count(wo.id) + count(tt.id)) = count(rr.relatedreckey);

基本上它会计算每个相关类型的已关闭记录的数量，并将其与相关记录的总数进行比较。如果相同，则必须关闭所有相关记录。

在多个表中仅查找具有 children 特定状态的 parent 记录

find only parent records with children of certain status across multiple tables

sql

sql-server

join

anti-join