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How can i get the hour between two datetime in sql?
Below sql showing 57 hours, But,it's 44 hrs. How can i solve.
SELECT DATEDIFF(Hour,'2018-11-20 2:26:38.000','2018-11-22 11:00:29.367')
sql-server sql-server-2008 select hour asked Nov 22 '18 at 10:51
Shahana Akter PingkeyShahana Akter Pingkey
165
add a comment |
Below sql showing 57 hours, But,it's 44 hrs. How can i solve.
SELECT DATEDIFF(Hour,'2018-11-20 2:26:38.000','2018-11-22 11:00:29.367')
asked Nov 22 '18 at 10:51
Shahana Akter PingkeyShahana Akter Pingkey
165
add a comment |
Below sql showing 57 hours, But,it's 44 hrs. How can i solve.
SELECT DATEDIFF(Hour,'2018-11-20 2:26:38.000','2018-11-22 11:00:29.367')
asked Nov 22 '18 at 10:51
Shahana Akter PingkeyShahana Akter Pingkey
165
Below sql showing 57 hours, But,it's 44 hrs. How can i solve.
SELECT DATEDIFF(Hour,'2018-11-20 2:26:38.000','2018-11-22 11:00:29.367')
asked Nov 22 '18 at 10:51
Shahana Akter PingkeyShahana Akter Pingkey
165
asked Nov 22 '18 at 10:51
Shahana Akter PingkeyShahana Akter Pingkey
165
edited Nov 22 '18 at 10:55
Shahana Akter Pingkey
asked Nov 22 '18 at 10:51
Shahana Akter PingkeyShahana Akter Pingkey
165
asked Nov 22 '18 at 10:51
Shahana Akter PingkeyShahana Akter Pingkey
165
asked Nov 22 '18 at 10:51
Shahana Akter PingkeyShahana Akter Pingkey
165
165
add a comment |
add a comment |
2 Answers
2
active
oldest
votes
Use 24 hr format in both dates
SELECT DATEDIFF(Hour,'2018-11-20 14:26:38.000','2018-11-22 11:00:29.367')
answered Nov 22 '18 at 10:54
Anubrij ChandraAnubrij Chandra
7311719
How can i convert Datetime into 24 hrs format '2018-11-20 2:26:38.000'
– Shahana Akter Pingkey
Nov 22 '18 at 10:56
you have include AM or PM to covert it into 24 Hr format SELECT CONVERT(DATETIME, '2018-11-20 2:00:00 PM', 0)
– Anubrij Chandra
Nov 22 '18 at 11:00
1
@ShahanaAkterPingkey if you've not stored whether the time is AM or PM, then then you've already lost that information. If I said the time is 11:01 and asked you what time that was in 24 hour format, without additional information, how do you know it it's 11:01 or 23:01? (Answer: you don't). SQL Server can't infer this information either.
– Larnu
Nov 22 '18 at 11:01
Ist date i am storing it can be AM/PM . But , last date i compared with the GETDATE()
– Shahana Akter Pingkey
Nov 22 '18 at 11:04
1
@ShahanaAkterPingkey so, how do you tell if it's AM/PM?
– Larnu
Nov 22 '18 at 11:05
|
show 1 more comment
Not prefixing the hours to be two digits looks like it could be the issue, making it unambiguously in the afternoon gives your result.
/*------------------------
SELECT DATEDIFF(Hour,'2018-11-20 14:26:38.000','2018-11-22 11:00:29.367')
------------------------*/
45
You're default Date Time format is probably 12 hour, and "2:…" is being treated as pm.
Using two digits for the hour should help.
/*------------------------
SELECT DATEDIFF(Hour,'2018-11-20 02:26:38.000','2018-11-22 11:00:29.367')
------------------------*/
57
(SQL Server has a lot of backward compatibility which may be triggered is the input is not precisely formatted, ISO Date/Time formats always use two digits for hours, minutes, and seconds.)
If you are using a client (rather than fixed code in a Stored Proc/Function/Trigger/…) parameterising your queries avoids this issue: pass data as Date-Time type directly without any need to convert into a string.
answered Nov 22 '18 at 11:02
RichardRichard
89.5k17155221
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
Use 24 hr format in both dates
SELECT DATEDIFF(Hour,'2018-11-20 14:26:38.000','2018-11-22 11:00:29.367')
answered Nov 22 '18 at 10:54
Anubrij ChandraAnubrij Chandra
7311719
How can i convert Datetime into 24 hrs format '2018-11-20 2:26:38.000'
– Shahana Akter Pingkey
Nov 22 '18 at 10:56
you have include AM or PM to covert it into 24 Hr format SELECT CONVERT(DATETIME, '2018-11-20 2:00:00 PM', 0)
– Anubrij Chandra
Nov 22 '18 at 11:00
1
@ShahanaAkterPingkey if you've not stored whether the time is AM or PM, then then you've already lost that information. If I said the time is 11:01 and asked you what time that was in 24 hour format, without additional information, how do you know it it's 11:01 or 23:01? (Answer: you don't). SQL Server can't infer this information either.
– Larnu
Nov 22 '18 at 11:01
Ist date i am storing it can be AM/PM . But , last date i compared with the GETDATE()
– Shahana Akter Pingkey
Nov 22 '18 at 11:04
1
@ShahanaAkterPingkey so, how do you tell if it's AM/PM?
– Larnu
Nov 22 '18 at 11:05
|
show 1 more comment
Use 24 hr format in both dates
SELECT DATEDIFF(Hour,'2018-11-20 14:26:38.000','2018-11-22 11:00:29.367')
answered Nov 22 '18 at 10:54
Anubrij ChandraAnubrij Chandra
7311719
How can i convert Datetime into 24 hrs format '2018-11-20 2:26:38.000'
– Shahana Akter Pingkey
Nov 22 '18 at 10:56
you have include AM or PM to covert it into 24 Hr format SELECT CONVERT(DATETIME, '2018-11-20 2:00:00 PM', 0)
– Anubrij Chandra
Nov 22 '18 at 11:00
1
@ShahanaAkterPingkey if you've not stored whether the time is AM or PM, then then you've already lost that information. If I said the time is 11:01 and asked you what time that was in 24 hour format, without additional information, how do you know it it's 11:01 or 23:01? (Answer: you don't). SQL Server can't infer this information either.
– Larnu
Nov 22 '18 at 11:01
Ist date i am storing it can be AM/PM . But , last date i compared with the GETDATE()
– Shahana Akter Pingkey
Nov 22 '18 at 11:04
1
@ShahanaAkterPingkey so, how do you tell if it's AM/PM?
– Larnu
Nov 22 '18 at 11:05
|
show 1 more comment
Use 24 hr format in both dates
SELECT DATEDIFF(Hour,'2018-11-20 14:26:38.000','2018-11-22 11:00:29.367')
answered Nov 22 '18 at 10:54
Anubrij ChandraAnubrij Chandra
7311719
Use 24 hr format in both dates
SELECT DATEDIFF(Hour,'2018-11-20 14:26:38.000','2018-11-22 11:00:29.367')
answered Nov 22 '18 at 10:54
Anubrij ChandraAnubrij Chandra
7311719
answered Nov 22 '18 at 10:54
Anubrij ChandraAnubrij Chandra
7311719
answered Nov 22 '18 at 10:54
Anubrij ChandraAnubrij Chandra
7311719
answered Nov 22 '18 at 10:54
Anubrij ChandraAnubrij Chandra
7311719
7311719
How can i convert Datetime into 24 hrs format '2018-11-20 2:26:38.000'
– Shahana Akter Pingkey
Nov 22 '18 at 10:56
you have include AM or PM to covert it into 24 Hr format SELECT CONVERT(DATETIME, '2018-11-20 2:00:00 PM', 0)
– Anubrij Chandra
Nov 22 '18 at 11:00
1
@ShahanaAkterPingkey if you've not stored whether the time is AM or PM, then then you've already lost that information. If I said the time is 11:01 and asked you what time that was in 24 hour format, without additional information, how do you know it it's 11:01 or 23:01? (Answer: you don't). SQL Server can't infer this information either.
– Larnu
Nov 22 '18 at 11:01
Ist date i am storing it can be AM/PM . But , last date i compared with the GETDATE()
– Shahana Akter Pingkey
Nov 22 '18 at 11:04
1
@ShahanaAkterPingkey so, how do you tell if it's AM/PM?
– Larnu
Nov 22 '18 at 11:05
|
show 1 more comment
How can i convert Datetime into 24 hrs format '2018-11-20 2:26:38.000'
– Shahana Akter Pingkey
Nov 22 '18 at 10:56
you have include AM or PM to covert it into 24 Hr format SELECT CONVERT(DATETIME, '2018-11-20 2:00:00 PM', 0)
– Anubrij Chandra
Nov 22 '18 at 11:00
1
@ShahanaAkterPingkey if you've not stored whether the time is AM or PM, then then you've already lost that information. If I said the time is 11:01 and asked you what time that was in 24 hour format, without additional information, how do you know it it's 11:01 or 23:01? (Answer: you don't). SQL Server can't infer this information either.
– Larnu
Nov 22 '18 at 11:01
Ist date i am storing it can be AM/PM . But , last date i compared with the GETDATE()
– Shahana Akter Pingkey
Nov 22 '18 at 11:04
1
@ShahanaAkterPingkey so, how do you tell if it's AM/PM?
– Larnu
Nov 22 '18 at 11:05
How can i convert Datetime into 24 hrs format '2018-11-20 2:26:38.000'
– Shahana Akter Pingkey
Nov 22 '18 at 10:56
How can i convert Datetime into 24 hrs format '2018-11-20 2:26:38.000'
– Shahana Akter Pingkey
Nov 22 '18 at 10:56
you have include AM or PM to covert it into 24 Hr format SELECT CONVERT(DATETIME, '2018-11-20 2:00:00 PM', 0)
– Anubrij Chandra
Nov 22 '18 at 11:00
you have include AM or PM to covert it into 24 Hr format SELECT CONVERT(DATETIME, '2018-11-20 2:00:00 PM', 0)
– Anubrij Chandra
Nov 22 '18 at 11:00
1
1
@ShahanaAkterPingkey if you've not stored whether the time is AM or PM, then then you've already lost that information. If I said the time is 11:01 and asked you what time that was in 24 hour format, without additional information, how do you know it it's 11:01 or 23:01? (Answer: you don't). SQL Server can't infer this information either.
– Larnu
Nov 22 '18 at 11:01
@ShahanaAkterPingkey if you've not stored whether the time is AM or PM, then then you've already lost that information. If I said the time is 11:01 and asked you what time that was in 24 hour format, without additional information, how do you know it it's 11:01 or 23:01? (Answer: you don't). SQL Server can't infer this information either.
– Larnu
Nov 22 '18 at 11:01
Ist date i am storing it can be AM/PM . But , last date i compared with the GETDATE()
– Shahana Akter Pingkey
Nov 22 '18 at 11:04
Ist date i am storing it can be AM/PM . But , last date i compared with the GETDATE()
– Shahana Akter Pingkey
Nov 22 '18 at 11:04
1
1
@ShahanaAkterPingkey so, how do you tell if it's AM/PM?
– Larnu
Nov 22 '18 at 11:05
@ShahanaAkterPingkey so, how do you tell if it's AM/PM?
– Larnu
Nov 22 '18 at 11:05
|
show 1 more comment
Not prefixing the hours to be two digits looks like it could be the issue, making it unambiguously in the afternoon gives your result.
/*------------------------
SELECT DATEDIFF(Hour,'2018-11-20 14:26:38.000','2018-11-22 11:00:29.367')
------------------------*/
45
You're default Date Time format is probably 12 hour, and "2:…" is being treated as pm.
Using two digits for the hour should help.
/*------------------------
SELECT DATEDIFF(Hour,'2018-11-20 02:26:38.000','2018-11-22 11:00:29.367')
------------------------*/
57
(SQL Server has a lot of backward compatibility which may be triggered is the input is not precisely formatted, ISO Date/Time formats always use two digits for hours, minutes, and seconds.)
If you are using a client (rather than fixed code in a Stored Proc/Function/Trigger/…) parameterising your queries avoids this issue: pass data as Date-Time type directly without any need to convert into a string.
answered Nov 22 '18 at 11:02
RichardRichard
89.5k17155221
add a comment |
Not prefixing the hours to be two digits looks like it could be the issue, making it unambiguously in the afternoon gives your result.
/*------------------------
SELECT DATEDIFF(Hour,'2018-11-20 14:26:38.000','2018-11-22 11:00:29.367')
------------------------*/
45
You're default Date Time format is probably 12 hour, and "2:…" is being treated as pm.
Using two digits for the hour should help.
/*------------------------
SELECT DATEDIFF(Hour,'2018-11-20 02:26:38.000','2018-11-22 11:00:29.367')
------------------------*/
57
(SQL Server has a lot of backward compatibility which may be triggered is the input is not precisely formatted, ISO Date/Time formats always use two digits for hours, minutes, and seconds.)
If you are using a client (rather than fixed code in a Stored Proc/Function/Trigger/…) parameterising your queries avoids this issue: pass data as Date-Time type directly without any need to convert into a string.
answered Nov 22 '18 at 11:02
RichardRichard
89.5k17155221
add a comment |
Not prefixing the hours to be two digits looks like it could be the issue, making it unambiguously in the afternoon gives your result.
/*------------------------
SELECT DATEDIFF(Hour,'2018-11-20 14:26:38.000','2018-11-22 11:00:29.367')
------------------------*/
45
You're default Date Time format is probably 12 hour, and "2:…" is being treated as pm.
Using two digits for the hour should help.
/*------------------------
SELECT DATEDIFF(Hour,'2018-11-20 02:26:38.000','2018-11-22 11:00:29.367')
------------------------*/
57
(SQL Server has a lot of backward compatibility which may be triggered is the input is not precisely formatted, ISO Date/Time formats always use two digits for hours, minutes, and seconds.)
If you are using a client (rather than fixed code in a Stored Proc/Function/Trigger/…) parameterising your queries avoids this issue: pass data as Date-Time type directly without any need to convert into a string.
answered Nov 22 '18 at 11:02
RichardRichard
89.5k17155221
Not prefixing the hours to be two digits looks like it could be the issue, making it unambiguously in the afternoon gives your result.
/*------------------------
SELECT DATEDIFF(Hour,'2018-11-20 14:26:38.000','2018-11-22 11:00:29.367')
------------------------*/
45
You're default Date Time format is probably 12 hour, and "2:…" is being treated as pm.
Using two digits for the hour should help.
/*------------------------
SELECT DATEDIFF(Hour,'2018-11-20 02:26:38.000','2018-11-22 11:00:29.367')
------------------------*/
57
(SQL Server has a lot of backward compatibility which may be triggered is the input is not precisely formatted, ISO Date/Time formats always use two digits for hours, minutes, and seconds.)
If you are using a client (rather than fixed code in a Stored Proc/Function/Trigger/…) parameterising your queries avoids this issue: pass data as Date-Time type directly without any need to convert into a string.
answered Nov 22 '18 at 11:02
RichardRichard
89.5k17155221
answered Nov 22 '18 at 11:02
RichardRichard
89.5k17155221
answered Nov 22 '18 at 11:02
RichardRichard
89.5k17155221
answered Nov 22 '18 at 11:02
RichardRichard
89.5k17155221
89.5k17155221
add a comment |
add a comment |
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