String 如何在Oracle中以字符串格式添加两次？
我有两个Oracle格式的时间字符串，都是HH24:MI:SS。我想把这两个加起来，得到十进制的结果（就像我们在Oracle中从一个日期时间减去另一个日期时间后得到的结果一样）。有什么帮助吗？试试这个String 如何在Oracle中以字符串格式添加两次？,string,oracle,datetime,time,oracle-sqldeveloper,String,Oracle,Datetime,Time,Oracle Sqldeveloper,我有两个Oracle格式的时间字符串，都是HH24:MI:SS。我想把这两个加起来，得到十进制的结果（就像我们在Oracle中从一个日期时间减去另一个日期时间后得到的结果一样）。有什么帮助吗？试试这个 SELECT ( TO_DATE ( '13:00:00', 'HH24:MI:SS' ) - TO_DATE ( '12:00:00', 'HH24:MI:SS' ) ) AS DECI
SELECT
( TO_DATE ( '13:00:00',
'HH24:MI:SS' )
- TO_DATE ( '12:00:00',
'HH24:MI:SS' ) )
AS DECIMALS,
( TO_DATE ( '13:00:00',
'HH24:MI:SS' )
- TO_DATE ( '12:00:00',
'HH24:MI:SS' ) )
* 24
AS HOURS,
( TO_DATE ( '13:00:00',
'HH24:MI:SS' )
- TO_DATE ( '12:00:00',
'HH24:MI:SS' ) )
* 24
* 60
AS MINUTES,
( TO_DATE ( '13:00:00',
'HH24:MI:SS' )
- TO_DATE ( '12:00:00',
'HH24:MI:SS' ) )
* 24
* 60
* 60
AS SECONDS
FROM
DUAL;
DECIMALS HOURS MINUTES SECONDS
0.0416666666666667 1 60 3600
with x as (
select time1_,
time2_,
substr(time1_,1,2) * 3600 +
substr(time1_,4,2) * 60 +
substr(time1_,7,2) as time1_secs,
substr(time2_,1,2) * 3600 +
substr(time2_,4,2) * 60 +
substr(time2_,7,2) as time2_secs
from mytab
),
y as (
select time1_,time2_,
numtodsinterval(time1_secs + time2_secs,'second') time_intvl
from x
)
select time1_, time2_,
extract(day from time_intvl) days,
extract(hour from time_intvl) hours,
extract(minute from time_intvl) minutes,
extract(second from time_intvl) seconds,
extract(day from time_intvl) * 24 +
extract(hour from time_intvl) ||':' ||
extract(minute from time_intvl) ||':' ||
extract(second from time_intvl) duration
from y
| TIME1_ | TIME2_ | DAYS | HOURS | MINUTES | SECONDS | DURATION |
|----------|----------|------|-------|---------|---------|----------|
| 12:30:00 | 05:50:55 | 0 | 18 | 20 | 55 | 18:20:55 |
| 18:48:56 | 15:33:55 | 1 | 10 | 22 | 51 | 34:22:51 |
with x as (
select time1_,
time2_,
numtodsinterval(
(substr(time1_,1,2) + substr(time2_,1,2) )* 3600 +
(substr(time1_,4,2) + substr(time2_,4,2) ) * 60 +
substr(time1_,7,2) + substr(time2_,7,2)
, 'second'
) as time_intvl
from mytab
)
select time1_, time2_,
extract(day from time_intvl) days,
extract(hour from time_intvl) hours,
extract(minute from time_intvl) minutes,
extract(second from time_intvl) seconds,
extract(day from time_intvl) * 24 +
extract(hour from time_intvl) ||':' ||
extract(minute from time_intvl) ||':' ||
extract(second from time_intvl) duration
from x
| TIME1_ | TIME2_ | DAYS | HOURS | MINUTES | SECONDS | DURATION |
|----------|----------|------|-------|---------|---------|----------|
| 12:30:00 | 05:50:55 | 0 | 18 | 20 | 55 | 18:20:55 |
| 18:48:56 | 15:33:55 | 1 | 10 | 22 | 51 | 34:22:51 |
SELECT
( TO_DATE ( '13:00:00',
'HH24:MI:SS' )
- TO_DATE ( '12:00:00',
'HH24:MI:SS' ) )
AS DECIMALS,
( TO_DATE ( '13:00:00',
'HH24:MI:SS' )
- TO_DATE ( '12:00:00',
'HH24:MI:SS' ) )
* 24
AS HOURS,
( TO_DATE ( '13:00:00',
'HH24:MI:SS' )
- TO_DATE ( '12:00:00',
'HH24:MI:SS' ) )
* 24
* 60
AS MINUTES,
( TO_DATE ( '13:00:00',
'HH24:MI:SS' )
- TO_DATE ( '12:00:00',
'HH24:MI:SS' ) )
* 24
* 60
* 60
AS SECONDS
FROM
DUAL;
DECIMALS HOURS MINUTES SECONDS
0.0416666666666667 1 60 3600
with x as (
select time1_,
time2_,
substr(time1_,1,2) * 3600 +
substr(time1_,4,2) * 60 +
substr(time1_,7,2) as time1_secs,
substr(time2_,1,2) * 3600 +
substr(time2_,4,2) * 60 +
substr(time2_,7,2) as time2_secs
from mytab
),
y as (
select time1_,time2_,
numtodsinterval(time1_secs + time2_secs,'second') time_intvl
from x
)
select time1_, time2_,
extract(day from time_intvl) days,
extract(hour from time_intvl) hours,
extract(minute from time_intvl) minutes,
extract(second from time_intvl) seconds,
extract(day from time_intvl) * 24 +
extract(hour from time_intvl) ||':' ||
extract(minute from time_intvl) ||':' ||
extract(second from time_intvl) duration
from y
| TIME1_ | TIME2_ | DAYS | HOURS | MINUTES | SECONDS | DURATION |
|----------|----------|------|-------|---------|---------|----------|
| 12:30:00 | 05:50:55 | 0 | 18 | 20 | 55 | 18:20:55 |
| 18:48:56 | 15:33:55 | 1 | 10 | 22 | 51 | 34:22:51 |
with x as (
select time1_,
time2_,
numtodsinterval(
(substr(time1_,1,2) + substr(time2_,1,2) )* 3600 +
(substr(time1_,4,2) + substr(time2_,4,2) ) * 60 +
substr(time1_,7,2) + substr(time2_,7,2)
, 'second'
) as time_intvl
from mytab
)
select time1_, time2_,
extract(day from time_intvl) days,
extract(hour from time_intvl) hours,
extract(minute from time_intvl) minutes,
extract(second from time_intvl) seconds,
extract(day from time_intvl) * 24 +
extract(hour from time_intvl) ||':' ||
extract(minute from time_intvl) ||':' ||
extract(second from time_intvl) duration
from x
| TIME1_ | TIME2_ | DAYS | HOURS | MINUTES | SECONDS | DURATION |
|----------|----------|------|-------|---------|---------|----------|
| 12:30:00 | 05:50:55 | 0 | 18 | 20 | 55 | 18:20:55 |
| 18:48:56 | 15:33:55 | 1 | 10 | 22 | 51 | 34:22:51 |
SELECT
( TO_DATE ( '13:00:00',
'HH24:MI:SS' )
- TO_DATE ( '12:00:00',
'HH24:MI:SS' ) )
AS DECIMALS,
( TO_DATE ( '13:00:00',
'HH24:MI:SS' )
- TO_DATE ( '12:00:00',
'HH24:MI:SS' ) )
* 24
AS HOURS,
( TO_DATE ( '13:00:00',
'HH24:MI:SS' )
- TO_DATE ( '12:00:00',
'HH24:MI:SS' ) )
* 24
* 60
AS MINUTES,
( TO_DATE ( '13:00:00',
'HH24:MI:SS' )
- TO_DATE ( '12:00:00',
'HH24:MI:SS' ) )
* 24
* 60
* 60
AS SECONDS
FROM
DUAL;
DECIMALS HOURS MINUTES SECONDS
0.0416666666666667 1 60 3600
with x as (
select time1_,
time2_,
substr(time1_,1,2) * 3600 +
substr(time1_,4,2) * 60 +
substr(time1_,7,2) as time1_secs,
substr(time2_,1,2) * 3600 +
substr(time2_,4,2) * 60 +
substr(time2_,7,2) as time2_secs
from mytab
),
y as (
select time1_,time2_,
numtodsinterval(time1_secs + time2_secs,'second') time_intvl
from x
)
select time1_, time2_,
extract(day from time_intvl) days,
extract(hour from time_intvl) hours,
extract(minute from time_intvl) minutes,
extract(second from time_intvl) seconds,
extract(day from time_intvl) * 24 +
extract(hour from time_intvl) ||':' ||
extract(minute from time_intvl) ||':' ||
extract(second from time_intvl) duration
from y
| TIME1_ | TIME2_ | DAYS | HOURS | MINUTES | SECONDS | DURATION |
|----------|----------|------|-------|---------|---------|----------|
| 12:30:00 | 05:50:55 | 0 | 18 | 20 | 55 | 18:20:55 |
| 18:48:56 | 15:33:55 | 1 | 10 | 22 | 51 | 34:22:51 |
with x as (
select time1_,
time2_,
numtodsinterval(
(substr(time1_,1,2) + substr(time2_,1,2) )* 3600 +
(substr(time1_,4,2) + substr(time2_,4,2) ) * 60 +
substr(time1_,7,2) + substr(time2_,7,2)
, 'second'
) as time_intvl
from mytab
)
select time1_, time2_,
extract(day from time_intvl) days,
extract(hour from time_intvl) hours,
extract(minute from time_intvl) minutes,
extract(second from time_intvl) seconds,
extract(day from time_intvl) * 24 +
extract(hour from time_intvl) ||':' ||
extract(minute from time_intvl) ||':' ||
extract(second from time_intvl) duration
from x
| TIME1_ | TIME2_ | DAYS | HOURS | MINUTES | SECONDS | DURATION |
|----------|----------|------|-------|---------|---------|----------|
| 12:30:00 | 05:50:55 | 0 | 18 | 20 | 55 | 18:20:55 |
| 18:48:56 | 15:33:55 | 1 | 10 | 22 | 51 | 34:22:51 |
SELECT
( TO_DATE ( '13:00:00',
'HH24:MI:SS' )
- TO_DATE ( '12:00:00',
'HH24:MI:SS' ) )
AS DECIMALS,
( TO_DATE ( '13:00:00',
'HH24:MI:SS' )
- TO_DATE ( '12:00:00',
'HH24:MI:SS' ) )
* 24
AS HOURS,
( TO_DATE ( '13:00:00',
'HH24:MI:SS' )
- TO_DATE ( '12:00:00',
'HH24:MI:SS' ) )
* 24
* 60
AS MINUTES,
( TO_DATE ( '13:00:00',
'HH24:MI:SS' )
- TO_DATE ( '12:00:00',
'HH24:MI:SS' ) )
* 24
* 60
* 60
AS SECONDS
FROM
DUAL;
DECIMALS HOURS MINUTES SECONDS
0.0416666666666667 1 60 3600
with x as (
select time1_,
time2_,
substr(time1_,1,2) * 3600 +
substr(time1_,4,2) * 60 +
substr(time1_,7,2) as time1_secs,
substr(time2_,1,2) * 3600 +
substr(time2_,4,2) * 60 +
substr(time2_,7,2) as time2_secs
from mytab
),
y as (
select time1_,time2_,
numtodsinterval(time1_secs + time2_secs,'second') time_intvl
from x
)
select time1_, time2_,
extract(day from time_intvl) days,
extract(hour from time_intvl) hours,
extract(minute from time_intvl) minutes,
extract(second from time_intvl) seconds,
extract(day from time_intvl) * 24 +
extract(hour from time_intvl) ||':' ||
extract(minute from time_intvl) ||':' ||
extract(second from time_intvl) duration
from y
| TIME1_ | TIME2_ | DAYS | HOURS | MINUTES | SECONDS | DURATION |
|----------|----------|------|-------|---------|---------|----------|
| 12:30:00 | 05:50:55 | 0 | 18 | 20 | 55 | 18:20:55 |
| 18:48:56 | 15:33:55 | 1 | 10 | 22 | 51 | 34:22:51 |
with x as (
select time1_,
time2_,
numtodsinterval(
(substr(time1_,1,2) + substr(time2_,1,2) )* 3600 +
(substr(time1_,4,2) + substr(time2_,4,2) ) * 60 +
substr(time1_,7,2) + substr(time2_,7,2)
, 'second'
) as time_intvl
from mytab
)
select time1_, time2_,
extract(day from time_intvl) days,
extract(hour from time_intvl) hours,
extract(minute from time_intvl) minutes,
extract(second from time_intvl) seconds,
extract(day from time_intvl) * 24 +
extract(hour from time_intvl) ||':' ||
extract(minute from time_intvl) ||':' ||
extract(second from time_intvl) duration
from x
| TIME1_ | TIME2_ | DAYS | HOURS | MINUTES | SECONDS | DURATION |
|----------|----------|------|-------|---------|---------|----------|
| 12:30:00 | 05:50:55 | 0 | 18 | 20 | 55 | 18:20:55 |
| 18:48:56 | 15:33:55 | 1 | 10 | 22 | 51 | 34:22:51 |
- 将时间字符串拆分为小时、分钟和秒
- 将小时、分钟转换为秒，并将其全部相加
- 将生成的秒数转换为间隔类型
- 以所需格式从间隔类型中提取时间组件
DECIMALS HOURS MINUTES SECONDS
0.0416666666666667 1 60 3600
with x as (
select time1_,
time2_,
substr(time1_,1,2) * 3600 +
substr(time1_,4,2) * 60 +
substr(time1_,7,2) as time1_secs,
substr(time2_,1,2) * 3600 +
substr(time2_,4,2) * 60 +
substr(time2_,7,2) as time2_secs
from mytab
),
y as (
select time1_,time2_,
numtodsinterval(time1_secs + time2_secs,'second') time_intvl
from x
)
select time1_, time2_,
extract(day from time_intvl) days,
extract(hour from time_intvl) hours,
extract(minute from time_intvl) minutes,
extract(second from time_intvl) seconds,
extract(day from time_intvl) * 24 +
extract(hour from time_intvl) ||':' ||
extract(minute from time_intvl) ||':' ||
extract(second from time_intvl) duration
from y
| TIME1_ | TIME2_ | DAYS | HOURS | MINUTES | SECONDS | DURATION |
|----------|----------|------|-------|---------|---------|----------|
| 12:30:00 | 05:50:55 | 0 | 18 | 20 | 55 | 18:20:55 |
| 18:48:56 | 15:33:55 | 1 | 10 | 22 | 51 | 34:22:51 |
with x as (
select time1_,
time2_,
numtodsinterval(
(substr(time1_,1,2) + substr(time2_,1,2) )* 3600 +
(substr(time1_,4,2) + substr(time2_,4,2) ) * 60 +
substr(time1_,7,2) + substr(time2_,7,2)
, 'second'
) as time_intvl
from mytab
)
select time1_, time2_,
extract(day from time_intvl) days,
extract(hour from time_intvl) hours,
extract(minute from time_intvl) minutes,
extract(second from time_intvl) seconds,
extract(day from time_intvl) * 24 +
extract(hour from time_intvl) ||':' ||
extract(minute from time_intvl) ||':' ||
extract(second from time_intvl) duration
from x
| TIME1_ | TIME2_ | DAYS | HOURS | MINUTES | SECONDS | DURATION |
|----------|----------|------|-------|---------|---------|----------|
| 12:30:00 | 05:50:55 | 0 | 18 | 20 | 55 | 18:20:55 |
| 18:48:56 | 15:33:55 | 1 | 10 | 22 | 51 | 34:22:51 |
DECIMALS HOURS MINUTES SECONDS
0.0416666666666667 1 60 3600
with x as (
select time1_,
time2_,
substr(time1_,1,2) * 3600 +
substr(time1_,4,2) * 60 +
substr(time1_,7,2) as time1_secs,
substr(time2_,1,2) * 3600 +
substr(time2_,4,2) * 60 +
substr(time2_,7,2) as time2_secs
from mytab
),
y as (
select time1_,time2_,
numtodsinterval(time1_secs + time2_secs,'second') time_intvl
from x
)
select time1_, time2_,
extract(day from time_intvl) days,
extract(hour from time_intvl) hours,
extract(minute from time_intvl) minutes,
extract(second from time_intvl) seconds,
extract(day from time_intvl) * 24 +
extract(hour from time_intvl) ||':' ||
extract(minute from time_intvl) ||':' ||
extract(second from time_intvl) duration
from y
| TIME1_ | TIME2_ | DAYS | HOURS | MINUTES | SECONDS | DURATION |
|----------|----------|------|-------|---------|---------|----------|
| 12:30:00 | 05:50:55 | 0 | 18 | 20 | 55 | 18:20:55 |
| 18:48:56 | 15:33:55 | 1 | 10 | 22 | 51 | 34:22:51 |
with x as (
select time1_,
time2_,
numtodsinterval(
(substr(time1_,1,2) + substr(time2_,1,2) )* 3600 +
(substr(time1_,4,2) + substr(time2_,4,2) ) * 60 +
substr(time1_,7,2) + substr(time2_,7,2)
, 'second'
) as time_intvl
from mytab
)
select time1_, time2_,
extract(day from time_intvl) days,
extract(hour from time_intvl) hours,
extract(minute from time_intvl) minutes,
extract(second from time_intvl) seconds,
extract(day from time_intvl) * 24 +
extract(hour from time_intvl) ||':' ||
extract(minute from time_intvl) ||':' ||
extract(second from time_intvl) duration
from x
| TIME1_ | TIME2_ | DAYS | HOURS | MINUTES | SECONDS | DURATION |
|----------|----------|------|-------|---------|---------|----------|
| 12:30:00 | 05:50:55 | 0 | 18 | 20 | 55 | 18:20:55 |
| 18:48:56 | 15:33:55 | 1 | 10 | 22 | 51 | 34:22:51 |
DECIMALS HOURS MINUTES SECONDS
0.0416666666666667 1 60 3600
with x as (
select time1_,
time2_,
substr(time1_,1,2) * 3600 +
substr(time1_,4,2) * 60 +
substr(time1_,7,2) as time1_secs,
substr(time2_,1,2) * 3600 +
substr(time2_,4,2) * 60 +
substr(time2_,7,2) as time2_secs
from mytab
),
y as (
select time1_,time2_,
numtodsinterval(time1_secs + time2_secs,'second') time_intvl
from x
)
select time1_, time2_,
extract(day from time_intvl) days,
extract(hour from time_intvl) hours,
extract(minute from time_intvl) minutes,
extract(second from time_intvl) seconds,
extract(day from time_intvl) * 24 +
extract(hour from time_intvl) ||':' ||
extract(minute from time_intvl) ||':' ||
extract(second from time_intvl) duration
from y
| TIME1_ | TIME2_ | DAYS | HOURS | MINUTES | SECONDS | DURATION |
|----------|----------|------|-------|---------|---------|----------|
| 12:30:00 | 05:50:55 | 0 | 18 | 20 | 55 | 18:20:55 |
| 18:48:56 | 15:33:55 | 1 | 10 | 22 | 51 | 34:22:51 |
with x as (
select time1_,
time2_,
numtodsinterval(
(substr(time1_,1,2) + substr(time2_,1,2) )* 3600 +
(substr(time1_,4,2) + substr(time2_,4,2) ) * 60 +
substr(time1_,7,2) + substr(time2_,7,2)
, 'second'
) as time_intvl
from mytab
)
select time1_, time2_,
extract(day from time_intvl) days,
extract(hour from time_intvl) hours,
extract(minute from time_intvl) minutes,
extract(second from time_intvl) seconds,
extract(day from time_intvl) * 24 +
extract(hour from time_intvl) ||':' ||
extract(minute from time_intvl) ||':' ||
extract(second from time_intvl) duration
from x
| TIME1_ | TIME2_ | DAYS | HOURS | MINUTES | SECONDS | DURATION |
|----------|----------|------|-------|---------|---------|----------|
| 12:30:00 | 05:50:55 | 0 | 18 | 20 | 55 | 18:20:55 |
| 18:48:56 | 15:33:55 | 1 | 10 | 22 | 51 | 34:22:51 |
DECIMALS HOURS MINUTES SECONDS
0.0416666666666667 1 60 3600
with x as (
select time1_,
time2_,
substr(time1_,1,2) * 3600 +
substr(time1_,4,2) * 60 +
substr(time1_,7,2) as time1_secs,
substr(time2_,1,2) * 3600 +
substr(time2_,4,2) * 60 +
substr(time2_,7,2) as time2_secs
from mytab
),
y as (
select time1_,time2_,
numtodsinterval(time1_secs + time2_secs,'second') time_intvl
from x
)
select time1_, time2_,
extract(day from time_intvl) days,
extract(hour from time_intvl) hours,
extract(minute from time_intvl) minutes,
extract(second from time_intvl) seconds,
extract(day from time_intvl) * 24 +
extract(hour from time_intvl) ||':' ||
extract(minute from time_intvl) ||':' ||
extract(second from time_intvl) duration
from y
| TIME1_ | TIME2_ | DAYS | HOURS | MINUTES | SECONDS | DURATION |
|----------|----------|------|-------|---------|---------|----------|
| 12:30:00 | 05:50:55 | 0 | 18 | 20 | 55 | 18:20:55 |
| 18:48:56 | 15:33:55 | 1 | 10 | 22 | 51 | 34:22:51 |
with x as (
select time1_,
time2_,
numtodsinterval(
(substr(time1_,1,2) + substr(time2_,1,2) )* 3600 +
(substr(time1_,4,2) + substr(time2_,4,2) ) * 60 +
substr(time1_,7,2) + substr(time2_,7,2)
, 'second'
) as time_intvl
from mytab
)
select time1_, time2_,
extract(day from time_intvl) days,
extract(hour from time_intvl) hours,
extract(minute from time_intvl) minutes,
extract(second from time_intvl) seconds,
extract(day from time_intvl) * 24 +
extract(hour from time_intvl) ||':' ||
extract(minute from time_intvl) ||':' ||
extract(second from time_intvl) duration
from x
| TIME1_ | TIME2_ | DAYS | HOURS | MINUTES | SECONDS | DURATION |
|----------|----------|------|-------|---------|---------|----------|
| 12:30:00 | 05:50:55 | 0 | 18 | 20 | 55 | 18:20:55 |
| 18:48:56 | 15:33:55 | 1 | 10 | 22 | 51 | 34:22:51 |
- 将时间字符串拆分为小时、分钟和秒
- 将小时、分钟转换为秒，并将其全部相加
- 将生成的秒数转换为间隔类型
- 以所需格式从间隔类型中提取时间组件
DECIMALS HOURS MINUTES SECONDS
0.0416666666666667 1 60 3600
with x as (
select time1_,
time2_,
substr(time1_,1,2) * 3600 +
substr(time1_,4,2) * 60 +
substr(time1_,7,2) as time1_secs,
substr(time2_,1,2) * 3600 +
substr(time2_,4,2) * 60 +
substr(time2_,7,2) as time2_secs
from mytab
),
y as (
select time1_,time2_,
numtodsinterval(time1_secs + time2_secs,'second') time_intvl
from x
)
select time1_, time2_,
extract(day from time_intvl) days,
extract(hour from time_intvl) hours,
extract(minute from time_intvl) minutes,
extract(second from time_intvl) seconds,
extract(day from time_intvl) * 24 +
extract(hour from time_intvl) ||':' ||
extract(minute from time_intvl) ||':' ||
extract(second from time_intvl) duration
from y
| TIME1_ | TIME2_ | DAYS | HOURS | MINUTES | SECONDS | DURATION |
|----------|----------|------|-------|---------|---------|----------|
| 12:30:00 | 05:50:55 | 0 | 18 | 20 | 55 | 18:20:55 |
| 18:48:56 | 15:33:55 | 1 | 10 | 22 | 51 | 34:22:51 |
with x as (
select time1_,
time2_,
numtodsinterval(
(substr(time1_,1,2) + substr(time2_,1,2) )* 3600 +
(substr(time1_,4,2) + substr(time2_,4,2) ) * 60 +
substr(time1_,7,2) + substr(time2_,7,2)
, 'second'
) as time_intvl
from mytab
)
select time1_, time2_,
extract(day from time_intvl) days,
extract(hour from time_intvl) hours,
extract(minute from time_intvl) minutes,
extract(second from time_intvl) seconds,
extract(day from time_intvl) * 24 +
extract(hour from time_intvl) ||':' ||
extract(minute from time_intvl) ||':' ||
extract(second from time_intvl) duration
from x
| TIME1_ | TIME2_ | DAYS | HOURS | MINUTES | SECONDS | DURATION |
|----------|----------|------|-------|---------|---------|----------|
| 12:30:00 | 05:50:55 | 0 | 18 | 20 | 55 | 18:20:55 |
| 18:48:56 | 15:33:55 | 1 | 10 | 22 | 51 | 34:22:51 |
DECIMALS HOURS MINUTES SECONDS
0.0416666666666667 1 60 3600
with x as (
select time1_,
time2_,
substr(time1_,1,2) * 3600 +
substr(time1_,4,2) * 60 +
substr(time1_,7,2) as time1_secs,
substr(time2_,1,2) * 3600 +
substr(time2_,4,2) * 60 +
substr(time2_,7,2) as time2_secs
from mytab
),
y as (
select time1_,time2_,
numtodsinterval(time1_secs + time2_secs,'second') time_intvl
from x
)
select time1_, time2_,
extract(day from time_intvl) days,
extract(hour from time_intvl) hours,
extract(minute from time_intvl) minutes,
extract(second from time_intvl) seconds,
extract(day from time_intvl) * 24 +
extract(hour from time_intvl) ||':' ||
extract(minute from time_intvl) ||':' ||
extract(second from time_intvl) duration
from y
| TIME1_ | TIME2_ | DAYS | HOURS | MINUTES | SECONDS | DURATION |
|----------|----------|------|-------|---------|---------|----------|
| 12:30:00 | 05:50:55 | 0 | 18 | 20 | 55 | 18:20:55 |
| 18:48:56 | 15:33:55 | 1 | 10 | 22 | 51 | 34:22:51 |
with x as (
select time1_,
time2_,
numtodsinterval(
(substr(time1_,1,2) + substr(time2_,1,2) )* 3600 +
(substr(time1_,4,2) + substr(time2_,4,2) ) * 60 +
substr(time1_,7,2) + substr(time2_,7,2)
, 'second'
) as time_intvl
from mytab
)
select time1_, time2_,
extract(day from time_intvl) days,
extract(hour from time_intvl) hours,
extract(minute from time_intvl) minutes,
extract(second from time_intvl) seconds,
extract(day from time_intvl) * 24 +
extract(hour from time_intvl) ||':' ||
extract(minute from time_intvl) ||':' ||
extract(second from time_intvl) duration
from x
| TIME1_ | TIME2_ | DAYS | HOURS | MINUTES | SECONDS | DURATION |
|----------|----------|------|-------|---------|---------|----------|
| 12:30:00 | 05:50:55 | 0 | 18 | 20 | 55 | 18:20:55 |
| 18:48:56 | 15:33:55 | 1 | 10 | 22 | 51 | 34:22:51 |
DECIMALS HOURS MINUTES SECONDS
0.0416666666666667 1 60 3600
with x as (
select time1_,
time2_,
substr(time1_,1,2) * 3600 +
substr(time1_,4,2) * 60 +
substr(time1_,7,2) as time1_secs,
substr(time2_,1,2) * 3600 +
substr(time2_,4,2) * 60 +
substr(time2_,7,2) as time2_secs
from mytab
),
y as (
select time1_,time2_,
numtodsinterval(time1_secs + time2_secs,'second') time_intvl
from x
)
select time1_, time2_,
extract(day from time_intvl) days,
extract(hour from time_intvl) hours,
extract(minute from time_intvl) minutes,
extract(second from time_intvl) seconds,
extract(day from time_intvl) * 24 +
extract(hour from time_intvl) ||':' ||
extract(minute from time_intvl) ||':' ||
extract(second from time_intvl) duration
from y
| TIME1_ | TIME2_ | DAYS | HOURS | MINUTES | SECONDS | DURATION |
|----------|----------|------|-------|---------|---------|----------|
| 12:30:00 | 05:50:55 | 0 | 18 | 20 | 55 | 18:20:55 |
| 18:48:56 | 15:33:55 | 1 | 10 | 22 | 51 | 34:22:51 |
with x as (
select time1_,
time2_,
numtodsinterval(
(substr(time1_,1,2) + substr(time2_,1,2) )* 3600 +
(substr(time1_,4,2) + substr(time2_,4,2) ) * 60 +
substr(time1_,7,2) + substr(time2_,7,2)
, 'second'
) as time_intvl
from mytab
)
select time1_, time2_,
extract(day from time_intvl) days,
extract(hour from time_intvl) hours,
extract(minute from time_intvl) minutes,
extract(second from time_intvl) seconds,
extract(day from time_intvl) * 24 +
extract(hour from time_intvl) ||':' ||
extract(minute from time_intvl) ||':' ||
extract(second from time_intvl) duration
from x
| TIME1_ | TIME2_ | DAYS | HOURS | MINUTES | SECONDS | DURATION |
|----------|----------|------|-------|---------|---------|----------|
| 12:30:00 | 05:50:55 | 0 | 18 | 20 | 55 | 18:20:55 |
| 18:48:56 | 15:33:55 | 1 | 10 | 22 | 51 | 34:22:51 |
DECIMALS HOURS MINUTES SECONDS
0.0416666666666667 1 60 3600
with x as (
select time1_,
time2_,
substr(time1_,1,2) * 3600 +
substr(time1_,4,2) * 60 +
substr(time1_,7,2) as time1_secs,
substr(time2_,1,2) * 3600 +
substr(time2_,4,2) * 60 +
substr(time2_,7,2) as time2_secs
from mytab
),
y as (
select time1_,time2_,
numtodsinterval(time1_secs + time2_secs,'second') time_intvl
from x
)
select time1_, time2_,
extract(day from time_intvl) days,
extract(hour from time_intvl) hours,
extract(minute from time_intvl) minutes,
extract(second from time_intvl) seconds,
extract(day from time_intvl) * 24 +
extract(hour from time_intvl) ||':' ||
extract(minute from time_intvl) ||':' ||
extract(second from time_intvl) duration
from y
| TIME1_ | TIME2_ | DAYS | HOURS | MINUTES | SECONDS | DURATION |
|----------|----------|------|-------|---------|---------|----------|
| 12:30:00 | 05:50:55 | 0 | 18 | 20 | 55 | 18:20:55 |
| 18:48:56 | 15:33:55 | 1 | 10 | 22 | 51 | 34:22:51 |
with x as (
select time1_,
time2_,
numtodsinterval(
(substr(time1_,1,2) + substr(time2_,1,2) )* 3600 +
(substr(time1_,4,2) + substr(time2_,4,2) ) * 60 +
substr(time1_,7,2) + substr(time2_,7,2)
, 'second'
) as time_intvl
from mytab
)
select time1_, time2_,
extract(day from time_intvl) days,
extract(hour from time_intvl) hours,
extract(minute from time_intvl) minutes,
extract(second from time_intvl) seconds,
extract(day from time_intvl) * 24 +
extract(hour from time_intvl) ||':' ||
extract(minute from time_intvl) ||':' ||
extract(second from time_intvl) duration
from x
| TIME1_ | TIME2_ | DAYS | HOURS | MINUTES | SECONDS | DURATION |
|----------|----------|------|-------|---------|---------|----------|
| 12:30:00 | 05:50:55 | 0 | 18 | 20 | 55 | 18:20:55 |
| 18:48:56 | 15:33:55 | 1 | 10 | 22 | 51 | 34:22:51 |
- 将时间字符串拆分为小时、分钟和秒
- 将小时、分钟转换为秒，并将其全部相加
- 将生成的秒数转换为间隔类型
- 以所需格式从间隔类型中提取时间组件
DECIMALS HOURS MINUTES SECONDS
0.0416666666666667 1 60 3600
with x as (
select time1_,
time2_,
substr(time1_,1,2) * 3600 +
substr(time1_,4,2) * 60 +
substr(time1_,7,2) as time1_secs,
substr(time2_,1,2) * 3600 +
substr(time2_,4,2) * 60 +
substr(time2_,7,2) as time2_secs
from mytab
),
y as (
select time1_,time2_,
numtodsinterval(time1_secs + time2_secs,'second') time_intvl
from x
)
select time1_, time2_,
extract(day from time_intvl) days,
extract(hour from time_intvl) hours,
extract(minute from time_intvl) minutes,
extract(second from time_intvl) seconds,
extract(day from time_intvl) * 24 +
extract(hour from time_intvl) ||':' ||
extract(minute from time_intvl) ||':' ||
extract(second from time_intvl) duration
from y
| TIME1_ | TIME2_ | DAYS | HOURS | MINUTES | SECONDS | DURATION |
|----------|----------|------|-------|---------|---------|----------|
| 12:30:00 | 05:50:55 | 0 | 18 | 20 | 55 | 18:20:55 |
| 18:48:56 | 15:33:55 | 1 | 10 | 22 | 51 | 34:22:51 |
with x as (
select time1_,
time2_,
numtodsinterval(
(substr(time1_,1,2) + substr(time2_,1,2) )* 3600 +
(substr(time1_,4,2) + substr(time2_,4,2) ) * 60 +
substr(time1_,7,2) + substr(time2_,7,2)
, 'second'
) as time_intvl
from mytab
)
select time1_, time2_,
extract(day from time_intvl) days,
extract(hour from time_intvl) hours,
extract(minute from time_intvl) minutes,
extract(second from time_intvl) seconds,
extract(day from time_intvl) * 24 +
extract(hour from time_intvl) ||':' ||
extract(minute from time_intvl) ||':' ||
extract(second from time_intvl) duration
from x
| TIME1_ | TIME2_ | DAYS | HOURS | MINUTES | SECONDS | DURATION |
|----------|----------|------|-------|---------|---------|----------|
| 12:30:00 | 05:50:55 | 0 | 18 | 20 | 55 | 18:20:55 |
| 18:48:56 | 15:33:55 | 1 | 10 | 22 | 51 | 34:22:51 |
DECIMALS HOURS MINUTES SECONDS
0.0416666666666667 1 60 3600
with x as (
select time1_,
time2_,
substr(time1_,1,2) * 3600 +
substr(time1_,4,2) * 60 +
substr(time1_,7,2) as time1_secs,
substr(time2_,1,2) * 3600 +
substr(time2_,4,2) * 60 +
substr(time2_,7,2) as time2_secs
from mytab
),
y as (
select time1_,time2_,
numtodsinterval(time1_secs + time2_secs,'second') time_intvl
from x
)
select time1_, time2_,
extract(day from time_intvl) days,
extract(hour from time_intvl) hours,
extract(minute from time_intvl) minutes,
extract(second from time_intvl) seconds,
extract(day from time_intvl) * 24 +
extract(hour from time_intvl) ||':' ||
extract(minute from time_intvl) ||':' ||
extract(second from time_intvl) duration
from y
| TIME1_ | TIME2_ | DAYS | HOURS | MINUTES | SECONDS | DURATION |
|----------|----------|------|-------|---------|---------|----------|
| 12:30:00 | 05:50:55 | 0 | 18 | 20 | 55 | 18:20:55 |
| 18:48:56 | 15:33:55 | 1 | 10 | 22 | 51 | 34:22:51 |
with x as (
select time1_,
time2_,
numtodsinterval(
(substr(time1_,1,2) + substr(time2_,1,2) )* 3600 +
(substr(time1_,4,2) + substr(time2_,4,2) ) * 60 +
substr(time1_,7,2) + substr(time2_,7,2)
, 'second'
) as time_intvl
from mytab
)
select time1_, time2_,
extract(day from time_intvl) days,
extract(hour from time_intvl) hours,
extract(minute from time_intvl) minutes,
extract(second from time_intvl) seconds,
extract(day from time_intvl) * 24 +
extract(hour from time_intvl) ||':' ||
extract(minute from time_intvl) ||':' ||
extract(second from time_intvl) duration
from x
| TIME1_ | TIME2_ | DAYS | HOURS | MINUTES | SECONDS | DURATION |
|----------|----------|------|-------|---------|---------|----------|
| 12:30:00 | 05:50:55 | 0 | 18 | 20 | 55 | 18:20:55 |
| 18:48:56 | 15:33:55 | 1 | 10 | 22 | 51 | 34:22:51 |
DECIMALS HOURS MINUTES SECONDS
0.0416666666666667 1 60 3600
with x as (
select time1_,
time2_,
substr(time1_,1,2) * 3600 +
substr(time1_,4,2) * 60 +
substr(time1_,7,2) as time1_secs,
substr(time2_,1,2) * 3600 +
substr(time2_,4,2) * 60 +
substr(time2_,7,2) as time2_secs
from mytab
),
y as (
select time1_,time2_,
numtodsinterval(time1_secs + time2_secs,'second') time_intvl
from x
)
select time1_, time2_,
extract(day from time_intvl) days,
extract(hour from time_intvl) hours,
extract(minute from time_intvl) minutes,
extract(second from time_intvl) seconds,
extract(day from time_intvl) * 24 +
extract(hour from time_intvl) ||':' ||
extract(minute from time_intvl) ||':' ||
extract(second from time_intvl) duration
from y
| TIME1_ | TIME2_ | DAYS | HOURS | MINUTES | SECONDS | DURATION |
|----------|----------|------|-------|---------|---------|----------|
| 12:30:00 | 05:50:55 | 0 | 18 | 20 | 55 | 18:20:55 |
| 18:48:56 | 15:33:55 | 1 | 10 | 22 | 51 | 34:22:51 |
with x as (
select time1_,
time2_,
numtodsinterval(
(substr(time1_,1,2) + substr(time2_,1,2) )* 3600 +
(substr(time1_,4,2) + substr(time2_,4,2) ) * 60 +
substr(time1_,7,2) + substr(time2_,7,2)
, 'second'
) as time_intvl
from mytab
)
select time1_, time2_,
extract(day from time_intvl) days,
extract(hour from time_intvl) hours,
extract(minute from time_intvl) minutes,
extract(second from time_intvl) seconds,
extract(day from time_intvl) * 24 +
extract(hour from time_intvl) ||':' ||
extract(minute from time_intvl) ||':' ||
extract(second from time_intvl) duration
from x
| TIME1_ | TIME2_ | DAYS | HOURS | MINUTES | SECONDS | DURATION |
|----------|----------|------|-------|---------|---------|----------|
| 12:30:00 | 05:50:55 | 0 | 18 | 20 | 55 | 18:20:55 |
| 18:48:56 | 15:33:55 | 1 | 10 | 22 | 51 | 34:22:51 |
DECIMALS HOURS MINUTES SECONDS
0.0416666666666667 1 60 3600
with x as (
select time1_,
time2_,
substr(time1_,1,2) * 3600 +
substr(time1_,4,2) * 60 +
substr(time1_,7,2) as time1_secs,
substr(time2_,1,2) * 3600 +
substr(time2_,4,2) * 60 +
substr(time2_,7,2) as time2_secs
from mytab
),
y as (
select time1_,time2_,
numtodsinterval(time1_secs + time2_secs,'second') time_intvl
from x
)
select time1_, time2_,
extract(day from time_intvl) days,
extract(hour from time_intvl) hours,
extract(minute from time_intvl) minutes,
extract(second from time_intvl) seconds,
extract(day from time_intvl) * 24 +
extract(hour from time_intvl) ||':' ||
extract(minute from time_intvl) ||':' ||
extract(second from time_intvl) duration
from y
| TIME1_ | TIME2_ | DAYS | HOURS | MINUTES | SECONDS | DURATION |
|----------|----------|------|-------|---------|---------|----------|
| 12:30:00 | 05:50:55 | 0 | 18 | 20 | 55 | 18:20:55 |
| 18:48:56 | 15:33:55 | 1 | 10 | 22 | 51 | 34:22:51 |
with x as (
select time1_,
time2_,
numtodsinterval(
(substr(time1_,1,2) + substr(time2_,1,2) )* 3600 +
(substr(time1_,4,2) + substr(time2_,4,2) ) * 60 +
substr(time1_,7,2) + substr(time2_,7,2)
, 'second'
) as time_intvl
from mytab
)
select time1_, time2_,
extract(day from time_intvl) days,
extract(hour from time_intvl) hours,
extract(minute from time_intvl) minutes,
extract(second from time_intvl) seconds,
extract(day from time_intvl) * 24 +
extract(hour from time_intvl) ||':' ||
extract(minute from time_intvl) ||':' ||
extract(second from time_intvl) duration
from x
| TIME1_ | TIME2_ | DAYS | HOURS | MINUTES | SECONDS | DURATION |
|----------|----------|------|-------|---------|---------|----------|
| 12:30:00 | 05:50:55 | 0 | 18 | 20 | 55 | 18:20:55 |
| 18:48:56 | 15:33:55 | 1 | 10 | 22 | 51 | 34:22:51 |
- 将时间字符串拆分为小时、分钟和秒
- 将小时、分钟转换为秒，并将其全部相加
- 将生成的秒数转换为间隔类型
- 以所需格式从间隔类型中提取时间组件
DECIMALS HOURS MINUTES SECONDS
0.0416666666666667 1 60 3600
with x as (
select time1_,
time2_,
substr(time1_,1,2) * 3600 +
substr(time1_,4,2) * 60 +
substr(time1_,7,2) as time1_secs,
substr(time2_,1,2) * 3600 +
substr(time2_,4,2) * 60 +
substr(time2_,7,2) as time2_secs
from mytab
),
y as (
select time1_,time2_,
numtodsinterval(time1_secs + time2_secs,'second') time_intvl
from x
)
select time1_, time2_,
extract(day from time_intvl) days,
extract(hour from time_intvl) hours,
extract(minute from time_intvl) minutes,
extract(second from time_intvl) seconds,
extract(day from time_intvl) * 24 +
extract(hour from time_intvl) ||':' ||
extract(minute from time_intvl) ||':' ||
extract(second from time_intvl) duration
from y
| TIME1_ | TIME2_ | DAYS | HOURS | MINUTES | SECONDS | DURATION |
|----------|----------|------|-------|---------|---------|----------|
| 12:30:00 | 05:50:55 | 0 | 18 | 20 | 55 | 18:20:55 |
| 18:48:56 | 15:33:55 | 1 | 10 | 22 | 51 | 34:22:51 |
with x as (
select time1_,
time2_,
numtodsinterval(
(substr(time1_,1,2) + substr(time2_,1,2) )* 3600 +
(substr(time1_,4,2) + substr(time2_,4,2) ) * 60 +
substr(time1_,7,2) + substr(time2_,7,2)
, 'second'
) as time_intvl
from mytab
)
select time1_, time2_,
extract(day from time_intvl) days,
extract(hour from time_intvl) hours,
extract(minute from time_intvl) minutes,
extract(second from time_intvl) seconds,
extract(day from time_intvl) * 24 +
extract(hour from time_intvl) ||':' ||
extract(minute from time_intvl) ||':' ||
extract(second from time_intvl) duration
from x
| TIME1_ | TIME2_ | DAYS | HOURS | MINUTES | SECONDS | DURATION |
|----------|----------|------|-------|---------|---------|----------|
| 12:30:00 | 05:50:55 | 0 | 18 | 20 | 55 | 18:20:55 |
| 18:48:56 | 15:33:55 | 1 | 10 | 22 | 51 | 34:22:51 |
DECIMALS HOURS MINUTES SECONDS
0.0416666666666667 1 60 3600
with x as (
select time1_,
time2_,
substr(time1_,1,2) * 3600 +
substr(time1_,4,2) * 60 +
substr(time1_,7,2) as time1_secs,
substr(time2_,1,2) * 3600 +
substr(time2_,4,2) * 60 +
substr(time2_,7,2) as time2_secs
from mytab
),
y as (
select time1_,time2_,
numtodsinterval(time1_secs + time2_secs,'second') time_intvl
from x
)
select time1_, time2_,
extract(day from time_intvl) days,
extract(hour from time_intvl) hours,
extract(minute from time_intvl) minutes,
extract(second from time_intvl) seconds,
extract(day from time_intvl) * 24 +
extract(hour from time_intvl) ||':' ||
extract(minute from time_intvl) ||':' ||
extract(second from time_intvl) duration
from y
| TIME1_ | TIME2_ | DAYS | HOURS | MINUTES | SECONDS | DURATION |
|----------|----------|------|-------|---------|---------|----------|
| 12:30:00 | 05:50:55 | 0 | 18 | 20 | 55 | 18:20:55 |
| 18:48:56 | 15:33:55 | 1 | 10 | 22 | 51 | 34:22:51 |
with x as (
select time1_,
time2_,
numtodsinterval(
(substr(time1_,1,2) + substr(time2_,1,2) )* 3600 +
(substr(time1_,4,2) + substr(time2_,4,2) ) * 60 +
substr(time1_,7,2) + substr(time2_,7,2)
, 'second'
) as time_intvl
from mytab
)
select time1_, time2_,
extract(day from time_intvl) days,
extract(hour from time_intvl) hours,
extract(minute from time_intvl) minutes,
extract(second from time_intvl) seconds,
extract(day from time_intvl) * 24 +
extract(hour from time_intvl) ||':' ||
extract(minute from time_intvl) ||':' ||
extract(second from time_intvl) duration
from x
| TIME1_ | TIME2_ | DAYS | HOURS | MINUTES | SECONDS | DURATION |
|----------|----------|------|-------|---------|---------|----------|
| 12:30:00 | 05:50:55 | 0 | 18 | 20 | 55 | 18:20:55 |
| 18:48:56 | 15:33:55 | 1 | 10 | 22 | 51 | 34:22:51 |
DECIMALS HOURS MINUTES SECONDS
0.0416666666666667 1 60 3600
with x as (
select time1_,
time2_,
substr(time1_,1,2) * 3600 +
substr(time1_,4,2) * 60 +
substr(time1_,7,2) as time1_secs,
substr(time2_,1,2) * 3600 +
substr(time2_,4,2) * 60 +
substr(time2_,7,2) as time2_secs
from mytab
),
y as (
select time1_,time2_,
numtodsinterval(time1_secs + time2_secs,'second') time_intvl
from x
)
select time1_, time2_,
extract(day from time_intvl) days,
extract(hour from time_intvl) hours,
extract(minute from time_intvl) minutes,
extract(second from time_intvl) seconds,
extract(day from time_intvl) * 24 +
extract(hour from time_intvl) ||':' ||
extract(minute from time_intvl) ||':' ||
extract(second from time_intvl) duration
from y
| TIME1_ | TIME2_ | DAYS | HOURS | MINUTES | SECONDS | DURATION |
|----------|----------|------|-------|---------|---------|----------|
| 12:30:00 | 05:50:55 | 0 | 18 | 20 | 55 | 18:20:55 |
| 18:48:56 | 15:33:55 | 1 | 10 | 22 | 51 | 34:22:51 |
with x as (
select time1_,
time2_,
numtodsinterval(
(substr(time1_,1,2) + substr(time2_,1,2) )* 3600 +
(substr(time1_,4,2) + substr(time2_,4,2) ) * 60 +
substr(time1_,7,2) + substr(time2_,7,2)
, 'second'
) as time_intvl
from mytab
)
select time1_, time2_,
extract(day from time_intvl) days,
extract(hour from time_intvl) hours,
extract(minute from time_intvl) minutes,
extract(second from time_intvl) seconds,
extract(day from time_intvl) * 24 +
extract(hour from time_intvl) ||':' ||
extract(minute from time_intvl) ||':' ||
extract(second from time_intvl) duration
from x
| TIME1_ | TIME2_ | DAYS | HOURS | MINUTES | SECONDS | DURATION |
|----------|----------|------|-------|---------|---------|----------|
| 12:30:00 | 05:50:55 | 0 | 18 | 20 | 55 | 18:20:55 |
| 18:48:56 | 15:33:55 | 1 | 10 | 22 | 51 | 34:22:51 |
DECIMALS HOURS MINUTES SECONDS
0.0416666666666667 1 60 3600
with x as (
select time1_,
time2_,
substr(time1_,1,2) * 3600 +
substr(time1_,4,2) * 60 +
substr(time1_,7,2) as time1_secs,
substr(time2_,1,2) * 3600 +
substr(time2_,4,2) * 60 +
substr(time2_,7,2) as time2_secs
from mytab
),
y as (
select time1_,time2_,
numtodsinterval(time1_secs + time2_secs,'second') time_intvl
from x
)
select time1_, time2_,
extract(day from time_intvl) days,
extract(hour from time_intvl) hours,
extract(minute from time_intvl) minutes,
extract(second from time_intvl) seconds,
extract(day from time_intvl) * 24 +
extract(hour from time_intvl) ||':' ||
extract(minute from time_intvl) ||':' ||
extract(second from time_intvl) duration
from y
| TIME1_ | TIME2_ | DAYS | HOURS | MINUTES | SECONDS | DURATION |
|----------|----------|------|-------|---------|---------|----------|
| 12:30:00 | 05:50:55 | 0 | 18 | 20 | 55 | 18:20:55 |
| 18:48:56 | 15:33:55 | 1 | 10 | 22 | 51 | 34:22:51 |
with x as (
select time1_,
time2_,
numtodsinterval(
(substr(time1_,1,2) + substr(time2_,1,2) )* 3600 +
(substr(time1_,4,2) + substr(time2_,4,2) ) * 60 +
substr(time1_,7,2) + substr(time2_,7,2)
, 'second'
) as time_intvl
from mytab
)
select time1_, time2_,
extract(day from time_intvl) days,
extract(hour from time_intvl) hours,
extract(minute from time_intvl) minutes,
extract(second from time_intvl) seconds,
extract(day from time_intvl) * 24 +
extract(hour from time_intvl) ||':' ||
extract(minute from time_intvl) ||':' ||
extract(second from time_intvl) duration
from x
| TIME1_ | TIME2_ | DAYS | HOURS | MINUTES | SECONDS | DURATION |
|----------|----------|------|-------|---------|---------|----------|
| 12:30:00 | 05:50:55 | 0 | 18 | 20 | 55 | 18:20:55 |
| 18:48:56 | 15:33:55 | 1 | 10 | 22 | 51 | 34:22:51 |
十进位还是什么？小时、秒或分钟？就所有三个时间而言，加上两个日期是毫无意义的。“12:00:00”add（+）“15:00:00”表达式的预期结果是什么？此外，如果您计划执行日期/时间算术，则需要使用to_date（）函数将时间字符串转换为日期数据类型，转换后的日期部分将添加到当前月份的第一天，因此上述表达式将变为01-10-2013 12:00:00+01-10-2013 15:00:00。这个加法不会产生有意义的结果。Oracle不允许将日期添加到datedecimal interms或什么？小时、秒或分钟？就所有三个时间而言，加上两个日期是毫无意义的。“12:00:00”add（+）“15:00:00”表达式的预期结果是什么？此外，如果您计划执行日期/时间算术，则需要使用to_date（）函数将时间字符串转换为日期数据类型，转换后的日期部分将添加到当前月份的第一天，因此上述表达式将变为01-10-2013 12:00:00+01-10-2013 15:00:00。这个加法不会产生有意义的结果。Oracle不允许将日期添加到datedecimal interms或什么？小时、秒或分钟？就所有三个时间而言，加上两个日期是毫无意义的。“12:00:00”add（+）“15:00:00”表达式的预期结果是什么？此外，如果您计划执行日期/时间算术，则需要使用to_date（）函数将时间字符串转换为日期数据类型，转换后的日期部分将添加到当前月份的第一天，因此上述表达式将变为01-10-2013 12:00:00+01-10-2013 15:00:00。这个加法不会产生有意义的结果。Oracle不允许将日期添加到datedecimal interms或什么？小时、秒或分钟？就所有三个时间而言，加上两个日期是毫无意义的。“12:00:00”add（+）“15:00:00”表达式的预期结果是什么？此外，如果您计划执行日期/时间算术，则需要使用to_date（）函数将时间字符串转换为日期数据类型，转换后的日期部分将添加到当前月份的第一天，因此上述表达式将变为01-10-2013 12:00:00+01-10-2013 15:00:00。这个加法不会产生有意义的结果。Oracle不允许将日期添加到日期