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Convert time from a format to an int in Oracle

2019 Community Moderator ElectionGet list of all tables in Oracle?How do I limit the number of rows returned by an Oracle query after ordering?Convert Oracle Date into Crystal ReportsConverting oracle datetime to javascript dateConverting TimeStamp to HH:MM:SS formatOracle: Convert Date Time to Specific formatConverting data stored as text to numbers (Oracle SQL)Converting Integer into timeAlternate formatting for Oracle GROUPING-type subtotals?Oracle convert hhmmss to hh:mm:ss

I can't seem to figure this out. I have some rows with time in the format 00:00:00 (hh:mm:ss) and i need to calculate the total time it takes for a task.
I am unable to sum this data. Can someone advise on a way to convert this to a format i can sum or a method to calculate the total time for the task.
Thanks for any assistance. This is in an Oracle DB.

asked Mar 7 at 14:10

Outside_the_box

3

What's the data type of the time column? Is it a varchar or date column?

– Codo
Mar 7 at 14:12

DATATYPE is VARCHAR2

– Outside_the_box
Mar 7 at 16:26

add a comment |

asked Mar 7 at 14:10

Outside_the_box

3

What's the data type of the time column? Is it a varchar or date column?

– Codo
Mar 7 at 14:12

DATATYPE is VARCHAR2

– Outside_the_box
Mar 7 at 16:26

add a comment |

asked Mar 7 at 14:10

Outside_the_box

oracle

asked Mar 7 at 14:10

Outside_the_box

asked Mar 7 at 14:10

Outside_the_box

asked Mar 7 at 14:10

Outside_the_box

asked Mar 7 at 14:10

Outside_the_box

asked Mar 7 at 14:10

Outside_the_box

3

What's the data type of the time column? Is it a varchar or date column?

– Codo
Mar 7 at 14:12

DATATYPE is VARCHAR2

– Outside_the_box
Mar 7 at 16:26

add a comment |

3

What's the data type of the time column? Is it a varchar or date column?

– Codo
Mar 7 at 14:12

DATATYPE is VARCHAR2

– Outside_the_box
Mar 7 at 16:26

What's the data type of the time column? Is it a varchar or date column?

– Codo
Mar 7 at 14:12

DATATYPE is VARCHAR2

– Outside_the_box
Mar 7 at 16:26

add a comment |

1 Answer
1

active

oldest

votes

Convert your time string to a date and subtract the equivalent date at midnight to give you an number as a fraction of a day. You can then sum this number and convert it to an interval:

Oracle Setup:

CREATE TABLE test_data( value ) AS
 SELECT '01:23:45' FROM DUAL UNION ALL
 SELECT '12:34:56' FROM DUAL UNION ALL
 SELECT '23:45:00' FROM DUAL;

Query:

SELECT NUMTODSINTERVAL(
 SUM( TO_DATE( value, 'HH24:MI:SS' ) - TO_DATE( '00:00:00', 'HH24:MI:SS' ) ),
 'DAY'
 ) AS total_time_taken
FROM test_data;

Output:


| TOTAL_TIME_TAKEN |
| :---------------------------- |
| +000000001 13:43:41.000000000 |

db<>fiddle here

Update including durations longer than 23:59:59.

Oracle Setup:

CREATE TABLE test_data( value ) AS
 SELECT '1:23:45' FROM DUAL UNION ALL
 SELECT '12:34:56' FROM DUAL UNION ALL
 SELECT '23:45:00' FROM DUAL UNION ALL
 SELECT '48:00:00' FROM DUAL;

Query:

SELECT NUMTODSINTERVAL(
 SUM(
 DATE '1970-01-01'
 + NUMTODSINTERVAL( SUBSTR( value, 1, HM - 1 ), 'HOUR' )
 + NUMTODSINTERVAL( SUBSTR( value, HM + 1, MS - HM - 1 ), 'MINUTE' )
 + NUMTODSINTERVAL( SUBSTR( value, MS + 1 ), 'SECOND' )
 - DATE '1970-01-01'
 ),
 'DAY'
 ) AS total_time
FROM (
 SELECT value,
 INSTR( value, ':', 1, 1 ) AS HM,
 INSTR( value, ':', 1, 2 ) AS MS
 FROM test_data
);

Output:


| TOTAL_TIME |
| :---------------------------- |
| +000000003 13:43:41.000000000 |

db<>fiddle here

Even better would be if you changed your table to hold the durations as intervals rather than as strings then everything becomes much simpler:

Oracle Setup:

CREATE TABLE test_data( value ) AS
 SELECT INTERVAL '1:23:45' HOUR TO SECOND FROM DUAL UNION ALL
 SELECT INTERVAL '12:34:56' HOUR TO SECOND FROM DUAL UNION ALL
 SELECT INTERVAL '23:45:00' HOUR TO SECOND FROM DUAL UNION ALL
 SELECT INTERVAL '48:00:00' HOUR TO SECOND FROM DUAL;

Query:

SELECT NUMTODSINTERVAL(
 SUM( DATE '1970-01-01' + value - DATE '1970-01-01' ),
 'DAY'
 ) AS total_time
FROM test_data;

Output:


| TOTAL_TIME |
| :---------------------------- |
| +000000003 13:43:41.000000000 |

db<>fiddle here

edited Mar 8 at 9:21

answered Mar 7 at 14:33

MT0

53.6k52756

The values aren't a clock time but time taken. So if one task took 48 hours 12 minutes and 23 seconds. Ideally i would like a way to get the hours and minutes in a format i could sum them with.

– Outside_the_box
Mar 7 at 16:28

@Outside_the_box Updated for durations longer than 24 hours.

– MT0
Mar 8 at 9:21

add a comment |

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1 Answer
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active

oldest

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1 Answer
1

active

oldest

votes

Convert your time string to a date and subtract the equivalent date at midnight to give you an number as a fraction of a day. You can then sum this number and convert it to an interval:

Oracle Setup:

CREATE TABLE test_data( value ) AS
 SELECT '01:23:45' FROM DUAL UNION ALL
 SELECT '12:34:56' FROM DUAL UNION ALL
 SELECT '23:45:00' FROM DUAL;

Query:

SELECT NUMTODSINTERVAL(
 SUM( TO_DATE( value, 'HH24:MI:SS' ) - TO_DATE( '00:00:00', 'HH24:MI:SS' ) ),
 'DAY'
 ) AS total_time_taken
FROM test_data;

Output:


| TOTAL_TIME_TAKEN |
| :---------------------------- |
| +000000001 13:43:41.000000000 |

db<>fiddle here

Update including durations longer than 23:59:59.

Oracle Setup:

CREATE TABLE test_data( value ) AS
 SELECT '1:23:45' FROM DUAL UNION ALL
 SELECT '12:34:56' FROM DUAL UNION ALL
 SELECT '23:45:00' FROM DUAL UNION ALL
 SELECT '48:00:00' FROM DUAL;

Query:

SELECT NUMTODSINTERVAL(
 SUM(
 DATE '1970-01-01'
 + NUMTODSINTERVAL( SUBSTR( value, 1, HM - 1 ), 'HOUR' )
 + NUMTODSINTERVAL( SUBSTR( value, HM + 1, MS - HM - 1 ), 'MINUTE' )
 + NUMTODSINTERVAL( SUBSTR( value, MS + 1 ), 'SECOND' )
 - DATE '1970-01-01'
 ),
 'DAY'
 ) AS total_time
FROM (
 SELECT value,
 INSTR( value, ':', 1, 1 ) AS HM,
 INSTR( value, ':', 1, 2 ) AS MS
 FROM test_data
);

Output:


| TOTAL_TIME |
| :---------------------------- |
| +000000003 13:43:41.000000000 |

db<>fiddle here

Even better would be if you changed your table to hold the durations as intervals rather than as strings then everything becomes much simpler:

Oracle Setup:

CREATE TABLE test_data( value ) AS
 SELECT INTERVAL '1:23:45' HOUR TO SECOND FROM DUAL UNION ALL
 SELECT INTERVAL '12:34:56' HOUR TO SECOND FROM DUAL UNION ALL
 SELECT INTERVAL '23:45:00' HOUR TO SECOND FROM DUAL UNION ALL
 SELECT INTERVAL '48:00:00' HOUR TO SECOND FROM DUAL;

Query:

SELECT NUMTODSINTERVAL(
 SUM( DATE '1970-01-01' + value - DATE '1970-01-01' ),
 'DAY'
 ) AS total_time
FROM test_data;

Output:


| TOTAL_TIME |
| :---------------------------- |
| +000000003 13:43:41.000000000 |

db<>fiddle here

edited Mar 8 at 9:21

answered Mar 7 at 14:33

MT0

53.6k52756

The values aren't a clock time but time taken. So if one task took 48 hours 12 minutes and 23 seconds. Ideally i would like a way to get the hours and minutes in a format i could sum them with.

– Outside_the_box
Mar 7 at 16:28

@Outside_the_box Updated for durations longer than 24 hours.

– MT0
Mar 8 at 9:21

add a comment |

Convert your time string to a date and subtract the equivalent date at midnight to give you an number as a fraction of a day. You can then sum this number and convert it to an interval:

Oracle Setup:

CREATE TABLE test_data( value ) AS
 SELECT '01:23:45' FROM DUAL UNION ALL
 SELECT '12:34:56' FROM DUAL UNION ALL
 SELECT '23:45:00' FROM DUAL;

Query:

SELECT NUMTODSINTERVAL(
 SUM( TO_DATE( value, 'HH24:MI:SS' ) - TO_DATE( '00:00:00', 'HH24:MI:SS' ) ),
 'DAY'
 ) AS total_time_taken
FROM test_data;

Output:


| TOTAL_TIME_TAKEN |
| :---------------------------- |
| +000000001 13:43:41.000000000 |

db<>fiddle here

Update including durations longer than 23:59:59.

Oracle Setup:

CREATE TABLE test_data( value ) AS
 SELECT '1:23:45' FROM DUAL UNION ALL
 SELECT '12:34:56' FROM DUAL UNION ALL
 SELECT '23:45:00' FROM DUAL UNION ALL
 SELECT '48:00:00' FROM DUAL;

Query:

SELECT NUMTODSINTERVAL(
 SUM(
 DATE '1970-01-01'
 + NUMTODSINTERVAL( SUBSTR( value, 1, HM - 1 ), 'HOUR' )
 + NUMTODSINTERVAL( SUBSTR( value, HM + 1, MS - HM - 1 ), 'MINUTE' )
 + NUMTODSINTERVAL( SUBSTR( value, MS + 1 ), 'SECOND' )
 - DATE '1970-01-01'
 ),
 'DAY'
 ) AS total_time
FROM (
 SELECT value,
 INSTR( value, ':', 1, 1 ) AS HM,
 INSTR( value, ':', 1, 2 ) AS MS
 FROM test_data
);

Output:


| TOTAL_TIME |
| :---------------------------- |
| +000000003 13:43:41.000000000 |

db<>fiddle here

Even better would be if you changed your table to hold the durations as intervals rather than as strings then everything becomes much simpler:

Oracle Setup:

CREATE TABLE test_data( value ) AS
 SELECT INTERVAL '1:23:45' HOUR TO SECOND FROM DUAL UNION ALL
 SELECT INTERVAL '12:34:56' HOUR TO SECOND FROM DUAL UNION ALL
 SELECT INTERVAL '23:45:00' HOUR TO SECOND FROM DUAL UNION ALL
 SELECT INTERVAL '48:00:00' HOUR TO SECOND FROM DUAL;

Query:

SELECT NUMTODSINTERVAL(
 SUM( DATE '1970-01-01' + value - DATE '1970-01-01' ),
 'DAY'
 ) AS total_time
FROM test_data;

Output:


| TOTAL_TIME |
| :---------------------------- |
| +000000003 13:43:41.000000000 |

db<>fiddle here

edited Mar 8 at 9:21

answered Mar 7 at 14:33

MT0

53.6k52756

The values aren't a clock time but time taken. So if one task took 48 hours 12 minutes and 23 seconds. Ideally i would like a way to get the hours and minutes in a format i could sum them with.

– Outside_the_box
Mar 7 at 16:28

@Outside_the_box Updated for durations longer than 24 hours.

– MT0
Mar 8 at 9:21

add a comment |

Convert your time string to a date and subtract the equivalent date at midnight to give you an number as a fraction of a day. You can then sum this number and convert it to an interval:

Oracle Setup:

CREATE TABLE test_data( value ) AS
 SELECT '01:23:45' FROM DUAL UNION ALL
 SELECT '12:34:56' FROM DUAL UNION ALL
 SELECT '23:45:00' FROM DUAL;

Query:

SELECT NUMTODSINTERVAL(
 SUM( TO_DATE( value, 'HH24:MI:SS' ) - TO_DATE( '00:00:00', 'HH24:MI:SS' ) ),
 'DAY'
 ) AS total_time_taken
FROM test_data;

Output:


| TOTAL_TIME_TAKEN |
| :---------------------------- |
| +000000001 13:43:41.000000000 |

db<>fiddle here

Update including durations longer than 23:59:59.

Oracle Setup:

CREATE TABLE test_data( value ) AS
 SELECT '1:23:45' FROM DUAL UNION ALL
 SELECT '12:34:56' FROM DUAL UNION ALL
 SELECT '23:45:00' FROM DUAL UNION ALL
 SELECT '48:00:00' FROM DUAL;

Query:

SELECT NUMTODSINTERVAL(
 SUM(
 DATE '1970-01-01'
 + NUMTODSINTERVAL( SUBSTR( value, 1, HM - 1 ), 'HOUR' )
 + NUMTODSINTERVAL( SUBSTR( value, HM + 1, MS - HM - 1 ), 'MINUTE' )
 + NUMTODSINTERVAL( SUBSTR( value, MS + 1 ), 'SECOND' )
 - DATE '1970-01-01'
 ),
 'DAY'
 ) AS total_time
FROM (
 SELECT value,
 INSTR( value, ':', 1, 1 ) AS HM,
 INSTR( value, ':', 1, 2 ) AS MS
 FROM test_data
);

Output:


| TOTAL_TIME |
| :---------------------------- |
| +000000003 13:43:41.000000000 |

db<>fiddle here

Even better would be if you changed your table to hold the durations as intervals rather than as strings then everything becomes much simpler:

Oracle Setup:

CREATE TABLE test_data( value ) AS
 SELECT INTERVAL '1:23:45' HOUR TO SECOND FROM DUAL UNION ALL
 SELECT INTERVAL '12:34:56' HOUR TO SECOND FROM DUAL UNION ALL
 SELECT INTERVAL '23:45:00' HOUR TO SECOND FROM DUAL UNION ALL
 SELECT INTERVAL '48:00:00' HOUR TO SECOND FROM DUAL;

Query:

SELECT NUMTODSINTERVAL(
 SUM( DATE '1970-01-01' + value - DATE '1970-01-01' ),
 'DAY'
 ) AS total_time
FROM test_data;

Output:


| TOTAL_TIME |
| :---------------------------- |
| +000000003 13:43:41.000000000 |

db<>fiddle here

edited Mar 8 at 9:21

answered Mar 7 at 14:33

MT0

53.6k52756

Convert your time string to a date and subtract the equivalent date at midnight to give you an number as a fraction of a day. You can then sum this number and convert it to an interval:

Oracle Setup:

CREATE TABLE test_data( value ) AS
 SELECT '01:23:45' FROM DUAL UNION ALL
 SELECT '12:34:56' FROM DUAL UNION ALL
 SELECT '23:45:00' FROM DUAL;

Query:

SELECT NUMTODSINTERVAL(
 SUM( TO_DATE( value, 'HH24:MI:SS' ) - TO_DATE( '00:00:00', 'HH24:MI:SS' ) ),
 'DAY'
 ) AS total_time_taken
FROM test_data;

Output:


| TOTAL_TIME_TAKEN |
| :---------------------------- |
| +000000001 13:43:41.000000000 |

db<>fiddle here

Update including durations longer than 23:59:59.

Oracle Setup:

CREATE TABLE test_data( value ) AS
 SELECT '1:23:45' FROM DUAL UNION ALL
 SELECT '12:34:56' FROM DUAL UNION ALL
 SELECT '23:45:00' FROM DUAL UNION ALL
 SELECT '48:00:00' FROM DUAL;

Query:

SELECT NUMTODSINTERVAL(
 SUM(
 DATE '1970-01-01'
 + NUMTODSINTERVAL( SUBSTR( value, 1, HM - 1 ), 'HOUR' )
 + NUMTODSINTERVAL( SUBSTR( value, HM + 1, MS - HM - 1 ), 'MINUTE' )
 + NUMTODSINTERVAL( SUBSTR( value, MS + 1 ), 'SECOND' )
 - DATE '1970-01-01'
 ),
 'DAY'
 ) AS total_time
FROM (
 SELECT value,
 INSTR( value, ':', 1, 1 ) AS HM,
 INSTR( value, ':', 1, 2 ) AS MS
 FROM test_data
);

Output:


| TOTAL_TIME |
| :---------------------------- |
| +000000003 13:43:41.000000000 |

db<>fiddle here

Even better would be if you changed your table to hold the durations as intervals rather than as strings then everything becomes much simpler:

Oracle Setup:

CREATE TABLE test_data( value ) AS
 SELECT INTERVAL '1:23:45' HOUR TO SECOND FROM DUAL UNION ALL
 SELECT INTERVAL '12:34:56' HOUR TO SECOND FROM DUAL UNION ALL
 SELECT INTERVAL '23:45:00' HOUR TO SECOND FROM DUAL UNION ALL
 SELECT INTERVAL '48:00:00' HOUR TO SECOND FROM DUAL;

Query:

SELECT NUMTODSINTERVAL(
 SUM( DATE '1970-01-01' + value - DATE '1970-01-01' ),
 'DAY'
 ) AS total_time
FROM test_data;

Output:


| TOTAL_TIME |
| :---------------------------- |
| +000000003 13:43:41.000000000 |

db<>fiddle here

edited Mar 8 at 9:21

answered Mar 7 at 14:33

MT0

53.6k52756

edited Mar 8 at 9:21

answered Mar 7 at 14:33

MT0

53.6k52756

answered Mar 7 at 14:33

MT0

53.6k52756

answered Mar 7 at 14:33

MT0

53.6k52756

The values aren't a clock time but time taken. So if one task took 48 hours 12 minutes and 23 seconds. Ideally i would like a way to get the hours and minutes in a format i could sum them with.

– Outside_the_box
Mar 7 at 16:28

@Outside_the_box Updated for durations longer than 24 hours.

– MT0
Mar 8 at 9:21

add a comment |

The values aren't a clock time but time taken. So if one task took 48 hours 12 minutes and 23 seconds. Ideally i would like a way to get the hours and minutes in a format i could sum them with.

– Outside_the_box
Mar 7 at 16:28

@Outside_the_box Updated for durations longer than 24 hours.

– MT0
Mar 8 at 9:21

The values aren't a clock time but time taken. So if one task took 48 hours 12 minutes and 23 seconds. Ideally i would like a way to get the hours and minutes in a format i could sum them with.

– Outside_the_box
Mar 7 at 16:28

@Outside_the_box Updated for durations longer than 24 hours.

– MT0
Mar 8 at 9:21

add a comment |

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