SQLite Date format - sqlite

I am using SQLite and want to show the day of the month in a number format. I need to use the current day. I was trying to sysdate and get the day of the month from that, but that is not working.
Here is what I was trying:
SUBSTR(sysdate,1,2)
Anyone have any ideas?

Are you looking for this?
local sysdate = "28-12-2013"
local day = sysdate:sub(1,2)
print("Day from string is: "..day)
Keep Coding..................... :)

Related

How do i subtract time from datetime in snowflake?

pdt.startTime is datetime
s_first.FromTimeOfDay is a time
I want to subtract the time drom the datetime. When i run the code below, Snowflake gives me this error invalid type [CAST(S_FIRST.FROMTIMEOFDAY AS TIMESTAMP_NTZ(9))] for parameter 'TO_TIMESTAMP_NTZ'
select (pdt.StartTime - (SELECT s_first.FromTimeOfDay::datetime FROM Shift s_first))
from RAW_CPMS_AAR.POWERBI_DowntimeTable AS PDT
When i try this:
select (pdt.StartTime::TIMESTAMP_NTZ(9) - (SELECT s_first.FromTimeOfDay::TIMESTAMP_NTZ(9) FROM Shift s_first))
from RAW_CPMS_AAR.POWERBI_DowntimeTable AS PDT
I get more or less the same error: invalid type [CAST(S_FIRST.FROMTIMEOFDAY AS TIMESTAMP_NTZ(9))] for parameter 'TO_TIMESTAMP_NTZ'
How do I convert the time into a datetime format so that I can subtract the two. It doesnt seem to me that there is a clear way to convert time into datetime in snowflake.
Is this what you're after?
select current_timestamp() as sample_timestamp
, time(sample_timestamp) as sample_time
, date(sample_timestamp) as sample_date;
A user pointed me in the right direction. i didnt realize i could use "dateadd" to also subtract time.
dateadd(HOUR, - (HOUR(current_timestamp())), temp.DateTime)

Converting Date to CurrentCompany timeZone in Dynamics ax x++

I have a scenario where i need to convert a Datefield(joindate) to currentcompany timezone date. And then i need to compare this with anotherdate(startdate). If the difference is more than 365 days i need to give an warning. Can someone help me in this.
Thanks in advance.
You can apply a timezone to an utcdatetime via DateTimeUtil::applyTimeZoneOffset
The company timezone can be retrieved by calling DateTimeUtil::getCompanyTimeZone
Afterwards calculate the difference by calling DateTimeUtil::getDifference, which returns the difference in seconds so you have to compare that with the seconds per year.
To avoid inserting a 'magic' number, use the constants in the macro library TimeConstants.
If Datefield(joindate) is of type date and not utcDateTime then DateTimeUtil::newDateTime() should be used to convert it to utcDateTime:
utcDateTime joinDateTime = DateTimeUtil::newDateTime(joindate, 0,
DateTimeUtil::getCompanyTimeZone());
DateTimeUtil::getDifference() can be used to get the number of seconds between the utcDateTime values.
If both Datefield(joindate) and anotherdate(startdate) are of type date and not utcDateType then no conversion is required at all, and you can check whether the difference is more than 365 as follows:
if (joindate - startdate > 365) {}
If the above assumptions are wrong, see DAXaholic's answer.

convert to date and extract only the time

How could I get only time of a varchar2? I do:
select to_date(substr(fecha,10,16),'HH:MI:SS AM') from total;
But it gives me:
01/06/2014 5:50:01
01/06/2014 5:50:05
01/06/2014 5:50:05
01/06/2014 5:50:50
And I would like to have:
5:50:01
5:50:05
5:50:05
5:50:50
Any help? Please
Although it may not be what you expected, the code is working correctly. In Oracle, if you don't specify the day-month-year portion of a date it defaults to the first day of the current month. An Oracle DATE must always have a day/month/year - there's no way to have a time without a date in a DATE column or variable.
SQLFiddle here.
If you really want to have it display only the time portion of the date you'll just have to extract only the hours-minutes-seconds using TO_CHAR(date_value, 'HH24:MI:SS') and treat it as a character string.
Share and enjoy.
i think you should use both, to_char and to_date:
select to_char(to_date(fecha,'dd-mm-yyyy HH:MI:SS AM'),'HH:MI:SS AM')
time from total;

I need a sqlite equivalent of the folling msaccess query

Select distinct Format(DateAdd(""s""," & columnname & ",""1/1/1980 12:00:00 AM""), 'dd-MMM-yyyy') as A
I have assumed that the seconds to add and the original date are hard coded values below whilst awaiting clarifications requested in the comments.
To add a number of seconds to a date you can use:
select datetime('1980-01-01 00:00:00', "345000 seconds");
This gives the result: 1980-01-04 23:50:00
The example above is just under 4 days in seconds, if you want to truncate the result to just the date as implied by the query in your questions then you can wrap this inside a date function. However, this would give the result in the format "YYYY-MM-DD" rather than "DD-MMM-YYYY" as your access query does.
Unfortunately I cannot find any native SQLite function to convert a numeric month value to mmm format. You can do this manually with replace (similar to the answer to this question), but this is a bit messy.
If you are happy to live with the numeric months then you can simply use:
select strftime('%d-%m-%Y', '1980-01-01 00:00:00', "345000 seconds");
This gives the result: 04-01-1980
More information on the SQLite date / time functions can be found here.

Possible to create a query that sorts by day of week?

Is it possible to write a SQL query that sorts data set by day of week starting from a specific day?
For example, if today is Thursday, the results are sorted from THU-FRI-SAT-...-MON-TUE-WED.
If today is Tuesday, the results would be sorted from TUE-WED-THU-...-SAT-SUN-MON.
Days are stored as integers.
Assuming you have the day of the week stored into field WD where value 1 means MON, 2 means TUE etc and SW is the "start of the week" index (again 1:MON, 2:TUE,...) then something like
CASE WHEN WD < SW THEN WD + 7 ELSE WD END
should give you a value to order by. I don't use sqlite so I'm not sure can you put it right into the ORDER BY or do you have to use it as a field and then order by that field.
in mysql: ORDER BY DATE_FORMAT(date,%w)
see: http://dev.mysql.com/doc/refman/5.5/en/date-and-time-functions.html#function_date-format
Microsoft databases suport this (not shure)
... ORDER by DATENAME ( dw , table.datefield )
Check out DATEPART:
http://www.tizag.com/sqlTutorial/sqldatepart.php

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