I have two column timestamps values and would like to find out difference between those times in SAP HANA.
I have not found any easiest way to find out like other DB. For better understanding, an example has been given in the following.
COLUMN1: COLUMN2:
Thu Oct 01 2020 09:18:08 GMT+0200 (CEST) Thu Oct 01 2020 15:49:40 GMT+0200 (CEST)
Resulting Column: 06 hours 31 min 32s
You can use the xx_between functions (days_between, seconds_between, nano100_between) and then you can do some math, as in:
CONCAT(CONCAT(CONCAT(CONCAT(CONCAT( CONCAT(to_varchar(to_integer(DAYS_BETWEEN(ED."START_TIME", ED."END_TIME")),'00'), 'D '), -- Days
to_varchar(to_integer(NANO100_BETWEEN(Table1."START_TIME", Table1."END_TIME")/10000000/60/60)-DAYS_BETWEEN(Table1."START_TIME", Table1."END_TIME")*24,'00') --Hours),':'),
to_varchar(to_integer(((NANO100_BETWEEN(Table1."START_TIME", Table1."END_TIME")/10000000/60/60)-to_integer(NANO100_BETWEEN(Table1."START_TIME", Table1."END_TIME")/10000000/60/60))*60),'00') --Minutes
),':'),to_varchar(to_integer(((((NANO100_BETWEEN(Table1."START_TIME", Table1."END_TIME")/10000000/60/60)-to_integer(NANO100_BETWEEN(Table1."START_TIME", Table1."END_TIME")/10000000/60/60))*60) - to_integer(((NANO100_BETWEEN(Table1."START_TIME", Table1."END_TIME")/10000000/60/60)-to_integer(NANO100_BETWEEN(Table1."START_TIME", Table1."END_TIME")/10000000/60/60))*60))*60), '00'))
The code is written in a way to understand what is going on in terms of time conversion. It could be shortend a lot, if needed.
Related
Firstly I have no code to show (but for good reason). I need a pointer or direction before I try again as I have failed a few times already trying to create a recursive function and so on. Kind of given up and thought I would ask you experts as I am lost and stressed.
My Scenario is this.
Im creating a graph in PHP using Json and thats all fine. However the data I need is my issue.
I have records that have a start and an end date.
Example
ID 14
Start_Date 03/08/2021
End_Date 07/08/2021
Running a stored procedure to grab a records and count between 1 Aug to 10 Aug would display the above as a single record.
Im trying to create a line chart that would have 1 Aug to 2 Aug null then 3 Aug through 7 Aug displaying 1 and finally 8 to 10 Aug null.
1 Aug 2021 0
2 Aug 2021 0
3 Aug 2021 1
4 Aug 2021 1
5 Aug 2021 1
6 Aug 2021 1
7 Aug 2021 1
8 Aug 2021 0
9 Aug 2021 0
10 Aug 2021 0
Is this possible as I have nearly given up.
The nearest I came was using a loop to create a temporary table and inserting records was NOT pretty and certain was embarrassing. If I recreated and posted it here I would die of shame for sure.
So if anyone can point me in the right direction, offer a suggestion or anything like this would be very much appreciated.
Thank you for reading.
You need to start with a list of dates. There are many ways to generate such a list -- perhaps you have an existing table, or your database supports a function. SQL (in general) supports recursive CTEs, which is an alternative method.
Once you have the dates, you can use left join and group by to get the counts you want. Here is an example using MySQL syntax:
with recursive dates as (
select date('2021-08-01') as dte
union all
select dte + interval 1 day
from dates
where dte < '2021-08-10'
)
select d.dte, count(t.id)
from dates d left join
t
on d.dte between t.start_date and t.end_date
group by d.dte;
Here is a db<>fiddle.
I have issue converting parameter string to date.
I have list of data as:
Jul 28 2017 Call
Jan 8 2018 SMS
Apr 24 2018 Call
Jul 2 2018 E-Mail
Jul 13 2018 Call
Oct 1 2018 Call
Nov 27 2018 E-Mail
Dec 31 2018 Call
Jan 1 2019 SMS
Apr 1 2019 SMS
Jun 4 2019 SMS
I want them to be presented as eg. 06/04/2019 if possible
I tried LSet(Format(Parameters!DateInfo.Label,"MM/dd/yyyy"),12) in expression, but when I run the report it is showing me just like this MM/dd/YYYY.
For your parameter, you probably should be using a dataset for the dates with the Value set to use a date field and the Label using the string representation of the date (CONVERT(CHAR(10), THEDATE, 110) AS DATE_LABEL).
I'm guessing the user isn't typing the parameter values in which means that there's already a dataset for the dates. Add another column to the dataset with the date as a date field to use as the Value while using the text as the Label.
If you cannot fix that and still need to convert the text field into a date, you could use the CDATE function which will convert text into a date field.
=Format(CDATE(LEFT(Parameters!DateInfo.Label, 12)),"MM/dd/yyyy")
I am trying to sort a list of records that have been created using a screen scraping script. The script adds the following style of date and time (timestamp) to each record:
13 Jan 14:49
The script runs every 15 minutes, but if I set the sort order to 'time DESC' it doesn't really make sense because it lists the records as follows:
13 Jan 14:49
13 Jan 12:32
13 Jan 09:45
08 Feb 01:10
07 Feb 23:31
07 Feb 06:53
06 Feb 23:15
As you can see, it's listing the first figure correctly (the day of the month in number form) but it's putting February after January. To add to the confusion it's putting the latest date in February at the top of the February section.
Is there a better way of sorting these so they are in a more understandable order?
If you are storing the values in a database, simply use the column type datetime when creating the field. The database will treat the field as time and will sort the values chronologically.
Otherwise, if you are storing the values elsewhere, for example in a flat file, convert the formatted time to unix time. Unix time is an integer, thus you can sort it easier.
Time.parse("13 Jan 09:45").to_i
# => 1326444300
Time.parse("08 Feb 01:10").to_i
# => 1328659800
You can always convert a unix time to a Time instance.
Time.at(1328659800).to_s
# => "2012-02-08 01:10:00 +0100"
I have a varchar field where dates are stored in the database where I need data from with values like 31 APR 2001 I run the following query
select date(trim(contact_date)) from clients where date(trim(contact_date)) < '2002-03-12';
Whenever it hits 31 APR 2001 I get the error ERROR: date/time field value out of range: "31 APR 2001
Are there any workaround so that I won't get this error. Since all other dates get return perfectly.
The version of postgres I use is
PostgreSQL 8.1.22
There are 30 days in the month of April.
there is no 31 in April month, prevent it from hitting 31 check it before query
I have a table which contains a value for every 30 minutes in a month, e.g.
20/03/2010 00:00 12
20/03/2010 00:30 14
etc
All of this data is stored in GMT
I need to do a select on this table for the data in bst/clock time
for example
select *
from tbl
where dt between '01 April 2010' and '30 April 2010 23:30'
when in BST as the date range above is the dates need to be converted
I also need a way of taking the changeover hour and the end of March and October into account
Unfortunatly I cannot upgrade SQL server
Is there any way that I can do this in SQL for SQL Server 2000?
something like a function I could do?
select *
from tbl
where fnConvertToClockTime(dt) between '01 April 2010' and '30 April 2010 23:30'
When in GMT the function would return the exact date from the table
Cheers
Rupert
I have the same problem and am investigating the use of Calendar tables for such convserions. Store all dates in UTC time then convert as necessary, I'm probably going to create VIEWS for the different time zones to avoid parameter passing but I guess a stored procedure would also work.
I found some useful information here: how-do-i-convert-local-time-to-utc-gmt-time
And an associated article on Calendar tables here: why-should-i-consider-using-an-auxiliary-calendar-table