回答編集履歴
2
追記
answer
CHANGED
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@@ -27,4 +27,23 @@
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27
27
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from hoge
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28
28
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group by id
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29
29
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) t
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30
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+
```
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31
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+
以下検証用
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32
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+
```SQL
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33
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+
select id
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34
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+
, extract(hour from diff_time) * 3600
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35
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+
+ extract(minute from diff_time) * 60
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36
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+
+ extract(second from diff_time) as diff_second
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37
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+
from (
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38
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select id
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39
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, max(to_timestamp(start_time, 'HH24MISS'))
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40
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- min(to_timestamp(start_time, 'HH24MISS')) as diff_time
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41
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from (
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42
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select '1' as id , '101503' as start_time from dual
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43
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union all select '1' , '111604' from dual
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44
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union all select '2' , '111504' from dual
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45
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union all select '2' , '122604' from dual
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46
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+
) hoge
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47
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+
group by id
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48
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+
) t
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30
49
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```
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1
追記
answer
CHANGED
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@@ -11,4 +11,20 @@
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11
11
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from hoge
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12
12
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group by id
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13
13
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) t
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14
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+
```
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15
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+
質問に追記された内容では上記ではエラーになったとの事ですね。
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16
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+
上記は`start`を文字型と想定しています。数値型だとエラーになりますので、以下の様に文字型に変換してみて下さい。
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17
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+
尚、質問の際には型なども提供すべき重要な情報です。
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18
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+
```SQL
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19
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+
select id
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20
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+
, extract(hour from diff_time) * 3600
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21
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+
+ extract(minute from diff_time) * 60
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22
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+
+ extract(second from diff_time) as diff_second
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23
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from (
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24
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select id
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25
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, max(to_timestamp(to_char(start), 'HH24MISS')
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26
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- min(to_timestamp(to_char(start), 'HH24MISS') as diff_time
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27
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+
from hoge
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28
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+
group by id
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29
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+
) t
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14
30
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```
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