I am pulling data from Google BigQuery to Tableau.
In Tableau, I want a date filter which ranges from (selected date - 15)days to (selected date). The date filter in Tableau will look like- 11/12/2019 12:00:00 AM to 11/26/2019 11:59:59 PM.
In BigQuery table, the data type of date is TIMESTAMP.
I want to write a query that takes the selected date and computes date 15 days backward so that in tableau I can go 15 days behind by using the filter. How do I do that?
Right now what I have is-
cast(datetime_trunc (datetime(run_time), hour) as string) date_time
Below for BigQuery Standard SQL
SELECT <column list>
FROM `project.dataset.table`
WHERE DATE(run_time) BETWEEN DATE_SUB(CURRENT_DATE(), INTERVAL 15 DAY) AND CURRENT_DATE()
Related
I'm trying to get Weekly MTD and YTD values based of hourly data, but I'm having difficulties achieving this.
This is the data I'm working with:
max(Date) - Last day of the week
ISOWeek - Week in question
Value - The data I'm trying to sum
SELECT MAX(ISOWeek) AS [ISOWeek]
,MAX(Date) AS [Date]
,SUM(Value1) AS [MTD]
FROM Table1
GROUP BY ISOWeek, FORMAT(Date,'yyMM')
ORDER BY ISOWeek DESC
This is what that query returns:
ISOWeek Date MTD
29 2020-07-19 367529
28 2020-07-12 367138
27 2020-06-30 103290
27 2020-07-05 266755
26 2020-06-28 346588
25 2020-06-21 337168
This is what I would like to get:
ISOWeek Date MTD
29 2020-07-19 261515
28 2020-07-12 184104
27 2020-07-05 103414
26 2020-06-28 432114
25 2020-06-21 346588
The data has to be grouped by ISOWeek, if it's a week that dips into two months, I'm only interested in the MTD of the month in which the week ends. We have hundreds of values, so the plan is to create a MTD view and a YTD view. If I can get some help with the MTD one, I can get the other one done.
I'm nearly sure that what I'm after has to do with a WHERE clause and DATEADD but I'm not too sure what it should say.
Thank you for taking the time.
I don't really follow the rules you would like to apply, but per dates apply the formula to get weekstart/monthend or what you need. Place the date instead of the current date in the example.
Then group by the modified date.
You could build a date dimension where you have the required dates in some columns (first day of month, first day of week,etc.). This way you get a table with all the dates and the matching result for each.
It might be easier/faster to join it on the requried column.
declare #monthstart date,
#monthend date,
#weekstart date
;
select #monthstart=datefromparts(year(current_timestamp),month(current_timestamp),1);
select #monthend=EOMONTH(getdate(),0);
select #monthstart,#monthend,EOMONTH(getdate(),1) as next_month, EOMONTH(getdate(),-1) as previous_month;
select cast(DATEADD(d,1-DATEPART(WEEKDAY,current_timestamp),CURRENT_TIMESTAMP) as date) as Sunday,
cast(DATEADD(d,2-case when DATEPART(WEEKDAY,current_timestamp)=1 then 8 else DATEPART(WEEKDAY,current_timestamp) end,CURRENT_TIMESTAMP) as date) as Monday
;
I have a DateTime column (activation_dt) in DB2 table and I want to add 1 day to the date part and my output should be "date 00:00:00".
For example:
How it is - 5/9/2001 03:00:00
how it should be - 5/10/2001 00:00:00
I tried using Concat function but is not working. Date part I am doing as "date(activation_dt +1 day) as new_dt"
Please help how should I achieve this is DB2.
You could cast it to a DATE, then TIMESTAMP. Here is the invers, try out the individual parts.
values date(timestamp(current date))
BTW: What is CURRENT TIMEZONE?
Try this
VALUES date_trunc('DAY', CURRENT TIMESTAMP + 1 DAY)
it will always return the next day 00:00:00 - use activation_dt instead of current timestamp
I have 12 monthly tables, one for each month of the year 2019, records are order by an identifier (mmsi) and datetime (timestamp). I have calculated the interval (linetime2) between two consecutive rows. see below (August 2019):
Now I need to convert interval in hours in a new column. How can I do it? Can I run this:
SELECT EXTRACT(epoch FROM linetime2)/3600
or I have to take into account the number of days in a month and year?
I have a data set spanning 2 years and is updated daily, created a dashboard to give a view of incidents by date group. I have created a parameter using date trunc for Day/Week/Month/Quarter/Year. This is in Tableau.
I am trying to get the parameter to show a Week to date, Month to date and so on view. IE if on Weds 15th Dec I selected the weekly view, it would only show data for every week in the data set for Sat-Weds (My weeks go Sat-Fri) or the monthly view every month between 1st-15th
Ideally I am wanting this as a simple parameter for a drop down menu, I can do the week to date stuff as a rolling sum restarting every week in a separate table, but for ease I just need a date group function that will allow to do this.
Any suggestions would be appreciated.
Cheers
Pete
The solution is 5 parts:
Date Part Parameter
Max date [Max Date]
Dynamic date part of the Max date [Dynamic Date Part Max]
Dynamic date part of the historical dates [Dynamic Date Part]
Filter those date parts <= the Max date [Dynamic Date - Lass than Max]
Date Part Parameter
Max Date
This is the calculation you'd use with your dataset to find the max date.
{ MAX([Order Date]) }
In order to create a good example, I'm going to set my Max date to a specific date the falls in the middle of a week, in the middle of a month and middle of the year. I'm going use June 13th, 2018 as my Max Date.
So, if you want to follow along you can use the below date as your max date. You can also use this data set if you'd like.
DATE(#2018-06-13#)
Dynamic date part of the Max date
DATEPART([Select Date Part], [Max Date])
Dynamic date part of the Historical dates
DATEPART([Select Date Part], [Order Date])
Filter on Historical dates parts <= the Max Date
[Dynamic Date Part] <= [Dynamic Date Part Max]
Now that we have all the pieces we need let's check to make sure they are working as we would expect.
Looks like we're seeing all the days of the month that are <= the 13th.
When we change it to Day of the Week we see only the days of the week <= the 4th day of the week which is Wednesday when the week starts on Saturday.
Now let's calculate the running sum of sales along our dynamic date part to better help you with your example.
Drag the measure you want to calculate the running sum onto the label, then create a quick table calculation. We'll next need to edit this table calculation as so.
You'll then see your calculation working as you would expect.
Hope this was helpful. Happy vizzing!
I have a condition here in which I will have total experience in terms of month and year. For example, two drop down will be there for asking total number of experience in month and year. So if I am working from 1 Jan 2012, then I will write total experience as 3 year and 11 months. Now I have to convert this 3 year and 11 months into date format so that I can save this into database
You could use java.util.Calendar:
Calendar calendar = Calendar.getInstance();
calendar.add(Calendar.MONTH, month);
calendar.add(Calendar.YEAR, year);
Date date = calendar.getTime();
As a word of caution, the day field would be set to today's date. Check the intended behaviour if the current day is outside of the bounds for the target month. For example, setting the month to February when calendar has a day field of 30. It might be wise to set the day to a known, valid value for every month (eg: 1) before setting the month and year.
Use DATE_SUB() function:
Try this:
SELECT DATE_SUB(DATE_SUB(CURRENT_DATE(), INTERVAL 3 YEAR), INTERVAL 11 MONTH);
You can use mysql's date_sub() function or <date> - interval <expression> unit syntax to subtract an interval from a date.
select date_sub(curdate(),interval '3-11' YEAR_MONTH) as start_date
UPDATE:
Following the conversation between the OP and #eggyal, the OP need to replace the period in the incoming data with - and construct an insert statement as follows:
insert into mytable (...,join_date,...) values (...,date_sub(curdate(),interval '3-11' YEAR_MONTH),...)