I am trying to find the data in a table which has a date as a column. I need to find out the rows corresponding to the certain date range. How can I do this?
This solved my problem:
SELECT * FROM <database_table> WHERE <date_field> BETWEEN "<start date>" AND "<end date>";
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I am beginner in Backend technology and I am developing one query in Typeorm QueryBuilder + PostgreSQL.
My query is look like this :
But I can't convert my timestamp into following format. Can anyone who has expertise in it, please help me to select all records with timestamp in specific format.
I am suffering this things from last two days but still not find any solution. Actually I want to compare this date format in having clause. so I want to first select that date format then I can use that same method to compare column with current date and previous dates.
Have a date filter on the dashboard that allows for a custom date range:
Dashboard Date Filter
How can I add a the number of days in the filter to a formula? Just trying to show the number of days in column of a pivot table. In this example the date range is 45 days. The dataset doesn't have one record for each day, so a distinct count of days from the data set returns 42.
Is it possible to use the date from and date to filter values in formula? DDIFF([datefilter-from], [datefilter-to])
Extract the date from the fact table and create a dimension table which will contain all the dates.
Link the date column from fact table and dimension table. Use the dimension table's date column in filters.
I have a date column in my table. I want to retrieve all the dates that are non valid (ex, 12/11 or 12/2002). the data type of column is not DATE. How can I approach it? Any help would be appreciated.
Depending on the desired format of the data, you can use a regular expression:
SELECT * FROM tab
WHERE NOT col ~ '^\d{1,4}-\d{2}-\d{2}$';
This would be for dates in the format YYYY-MM-DD.
Tableau is reading my dates wrong. I have 2 columns, Date and number for each day.
The date format is “yyyymmdd” i.e. (20160617) and per day number is integer. I am fetching this data directly from SQL server and my problem is, tableau is reading my dates wrong.
So I tried DATEPARSE() to convert my date.
My DATEPARSE function is : DATEPARSE(“yyyymmdd”,”Date”) , now after using DATEPARSE function, I get NULL for my dates.
Can anyone please help me why I get NULL for dates, my query returns 30-day data which is divided into per day count.
Sample after running the query on SQL
Date Per day number
20160617 215674
Tableau does not accept this date format and I applied DateParse(), which I guess is returning string since my date is null. I would ideally like to get the correct date so I can apply a trend line on my data.
Thanks in advance.
Cheers!
You aren't using DateParse() correctly. The second parameter, which you have as "Date", should be the name of the field you want parsed. So for example, if you store 20160617 in a field called my_date_as_integer, your function should be DateParse("yyyymmdd", [my_date_as_integer])
Please pardon my ignorance if I have missed any documentation/solution for the same. But I searched the web and could not find an answer.
I have a simple question. In the DB2 table,I have a column of type date and the with data of format 04/25/2013 12:00:00AM . When I query the DB2 database, I want to obtain just the date and not the timestamp i.e to obtain "04/25/2013" and not "04/25/2013 12:00:00AM". I tried DATE(column name) and just gave back the complete value including the time stamp.
This looks like a TIMESTAMP and not a DATE column. If it is indeed a TIMESTAMP column try this:
select varchar_format(current timestamp, 'MM/DD/YYYY') from sysibm.sysdummy1 ;
Just replace the current timestamp in the above example with your column and sysibm.sysdummy1 with your table.
The good thing about varchar_format is that it lets you easily format the timestamp. Just change the 'MM/DD/YYYY' part to 'YYYY.MM.DD' to get a format like '2017.08.18'.