Database table - Converting Date to Number - vba

I am trying to convert a date to a number.
I need to have in my table a field with default value based on a date.
So if today is 23/01/2018, I want to have a number look like this 23012018.
Any ideas?

You can use the format command like this:
=Format$(Date, "ddmmyyyy")

Related

How to store MM/YYYY date on PostgreSQL?

I need to store a date on MM/YYYY format (without the day) on PostgreSQL.
Is that possible?
I don't want to just pick a day and store the day as well because that would be an incorrect information.
thanks.
mm/yyyy is not a valid date. The day is part of it, and cannot be removed. One alternative would to store the data in a string datatype instead of date, but I would not recommend that: doing so exposes you to data integrity issues (something like 13/2010, for example, is not a valid date part).
For this reason, I would still recommend using the date datatype. You can just ignore the day when accessing the data, if that's not relevant for you. You can also create a computed column based on the date, that displays the information in the format you want:
create table mytabnle (
...
mydate date,
mystr text geneated always as (to_char(mydate, 'mm/yyyy')) stored
);

Convert date column to character column

One of the columns is present in date datatype. I need to convert that date column in character datatype so that it can be concatenated with another character column.
Right now my date column is present in the following format : 09-JUN-2020.
Please help me in converting this column to character column.This needs to be done sas enterprise guide.
Thank u so much in advance.
You can use PUT() to convert from numeric to character. You need to find the format you want the output to look like and use that as your second parameter. Assuming you want your date to look like 2020-06-02 character this works:
*puts date as 2020-06-02;
newVar1 = put(dateVar, yymmddd10.);
*creates date variable as 02Jun2020;
newVar2 = put(dateVar, date9.);
FYI - You can find the list of formats available here

convert TEXT dd/mm/yyyy in SQL column to DATE YYYY-MM-DD

I would love to know the best way to handle data that has been inputted incorrectly as dd/mm/yyyy into a sql database as TEXT and to have it converted into a new column of the table with the datatype as DATE so it is actually stored as yyyy-mm-dd.
Existing text date column name is called "olddate" with an empty column created called "truedate" to house the new data. Each row has the date field, but none are able to be sorted correctly because of this issue.
Any ideas how I can slice and dice the current date into a new DATE field friendly version?
Thanks in advance :-)
That is style 103. So use:
select convert(date, col, 103)
Are you using Oracle? If so, TO_DATE is what you want. You can take in a string that represents a date and convert it to a date using the format you pass it.

Date not displaying correctly in Oracle

I have a character field that stamps in the order of MMDDYYHHMMSS (note: not a date but character field). I am wanting to kick this out to a date field in my SQL into this format dd.mm.yyyy. hh24:mi.
My problem is that the sql kicks it out to YYYY-MM-DD field without the time. This section of the sql looks like this:
TO_DATE(SUBSTR(MOPACTIVITY.MOPID,3,2)||'.'||SUBSTR(MOPACTIVITY.MOPID,1,2)
||'.'||'20'||SUBSTR(MOPACTIVITY.MOPID,5,2)||'.'||SUBSTR(MOPACTIVITY.MOPID,7,2)
||':'||SUBSTR(MOPACTIVITY.MOPID,9,2)||':'||SUBSTR(MOPACTIVITY.MOPID,11,2)
, 'dd.mm.yyyy. hh24:mi:ss') "XXX",
Any thoughs on how to get the time to convert too?
No need for such a complicated expression:
to_date(MOPID, 'MMDDYYHH24MISS')
will convert the column to a real DATE column assuming the time part is in 24 hour format (00-23, not 00-12). And this will also fail if you don't really have valid dates in the varchar column.
this out to a date field in my SQL into this format
A DATE column does not have "a format"!
The format is only applied when you display it.
In case you mean you want to convert the varchar stored in your column into another varchar that has a different date formatting, the easiest is probably to simply convert the above expression back to a varchar:
to_char(to_date(MOPID, 'MMDDYYHH24MISS'), 'dd.mm.yyyy. hh24:mi')
Before applying something like that, allow me one comment:
Store dates in DATE columns, never ever store them in a VARCHAR column.
If you had done that from the beginning, all you would have to do know is to simply apply a single to_char() to your DATE column to get the display format you want.

MS Access - Select Char as Date and doing a date diff

I have two columns. ColA and ColB contains char(10) with data "20090520" and "20090521".
I want to select and get the date difference in days. I have tried using Format() and CDate()
but MS Access always display as #ERROR.
Access prefers its dates in this format:
#2009-12-01#
You can convert your date to something Access understands with:
CDate(Format([ColA], "0000-00-00"))
Or alternatively:
DateSerial(Left([ColA],4),Mid([ColA],5,2),Right([ColA],2))
And to display the result in your preferred format:
Format(<date here>, "dd-mm-yyyy")
Try using DateSerial() to convert the dates:
DateSerial(Left([FieldName],4),Mid([FieldName],5,2),Right([FieldName],2))
If at all possible, change the datatype to a date datatype. You should not store dates as character data.
I am connecting to another database which I have no control on. That is why this problem occurred. Thanks for the feedback.