This question already has answers here:
Difference between two dates in postgresql
(1 answer)
Difference in years between two dates
(1 answer)
How to get difference of days/months/years (datediff) between two dates?
(10 answers)
Closed 4 years ago.
I'm trying to get it as:
SELECT * FROM "Employee" WHERE TIMESTAMPDIFF('YEAR', "BirthDate", "HireDate");
but I get the next error:
ERROR: function timestampdiff(unknown, timestamp without time zone, timestamp without time zone) does not exist
LINE 1: SELECT * FROM "Employee" WHERE TIMESTAMPDIFF('YEAR', "BirthD...
^
HINT: No function matches the given name and argument types. You might need to add explicit type casts.
I've found another way to get difference between 2 dates but in my instructions it says that I have to get it via TIMESTAMPDIFF.
Can someone help me where to look and how to fix my error?
you can use minus operator
EXTRACT(DAY FROM (HireDate)-(BirthDate)) AS DateDifference
Example select date '2001-10-01' - date '2001-09-28'
DEMO IN FIDDLE
PostGrey Docs
Related
This question already has answers here:
How to get difference of days/months/years (datediff) between two dates?
(10 answers)
how to resolve function datediff(unknown, timestamp without time zone, timestamp without time zone) does not exist
(2 answers)
Closed 8 months ago.
I have a large query written by another party for Amazon Redshift. Data has moved to a postgreSQL server and I would like to use the same query but I am getting an error. I understand that DATEDIFF does not work in postgreSQL and I should be using DATE_PART, but I still can't convert this particular clause. I am very new to postgreSQL syntax and have tried to fix this on my own, but can't get anything I do to completely work. Any help would be appreciated, thanks!
CLAUSE:
assignment_submissions AS (
SELECT submissions.*,
CASE
WHEN assignment_due_at IS NOT NULL
AND assignment_due_at <
COALESCE(submissions.submitted_at, CURRENT_TIMESTAMP::TIMESTAMP)
THEN
COALESCE(
NULLIF(
DATEDIFF(‘DAY’, assignment_due_at,
COALESCE(submissions.submitted_at, CURRENT_TIMESTAMP::TIMESTAMP)
), 0),
1)
END AS late_days
FROM submissions
WHERE assignment_type = 'a'
),
Here is the specific error: An error occurred while communicating with PostgreSQL Error Code: 975DF5A2 ERROR: function datediff(unknown, timestamp without time zone, timestamp without time zone) does not exist Hint: No function matches the given name and argument types. You might need to add explicit type casts. Position: 5503
This question already has answers here:
DATEDIFF function in Oracle [duplicate]
(4 answers)
Closed 3 years ago.
I'm trying to compare the column: LastUpdated with todays date in days, rounded to 1 decimal place. I keep getting the error
ERROR at line 4:
ORA-00904: "DATEDIFF": invalid identifier
Any ideas?
SELECT
DISTINCT "AppName",
"ApprovedForRelease",
DATEDIFF(DAY,"LastUpdated",GETDATE()) AS "DaySinceUpdated"
FROM BR_APP
WHERE "ApprovedForRelease" = 'Y';
In Oracle, you can use subtraction. To get the dates between, truncate off the time:
SELECT DISTINCT "AppName", "ApprovedForRelease",
(TRUNC(sysdate) - TRUNC("LastUpdated")) AS "DaySinceUpdated"
FROM BR_APP
WHERE "ApprovedForRelease" = 'Y';
The code you have used is based on SQL Server.
This question already has answers here:
How to extract only date value from date field in Oracle? [duplicate]
(3 answers)
Closed 7 years ago.
I know this is simple but am having great difficulty, I need to take a query field that is datetime and convert it so that it is only date no time.
SELECT COSTLABR.CHARGDTTM
FROM imsv7.costlabr
Gets me the datetime field from chargdttm but I need it to only be date, or as an alternative the time to be exactly the same for every row returned.
This has got to be simple but it is eluding me.
Thanks in advance!
Steven
You can use the TRUNC function to truncate dates:
SELECT TRUNC(COSTLABR.CHARGDTTM)
FROM imsv7.costlabr
will set the HOURS, MINUTES, and SECONDS portions of the date column to zero, in effect changing the time to the preceding midnight.
This question already has answers here:
Calculating difference between two timestamps in Oracle in milliseconds
(11 answers)
Closed 8 years ago.
I'm trying to find the difference between a TIMESTAMP(6) field and a DATE field in oracle sql to return number of days.
Anyone know how to convert these?
i tried to_date, to_number and a few other functions. I actually got it to work by using trunc on my datetimestamp
(a.date- trunc(b.datetimestamp))
This question already has answers here:
How to convert SQL Server's timestamp column to datetime format
(14 answers)
Closed 9 years ago.
I am using following query but it doesn't provide any meaningful output:
Select Cast(versionno as bigint) from BranchDetail
The value in Version column is like this : 0x000000000D2537F7
A TIMESTAMP has nothing to do with date and time. See this question. It is a ROWVERSION, not a date/time value.