SAS Specific Date format - date

I've found several questions regarding SAS dates in this forum, but i haven't been able to find the answer to this one. I think it is rather simple, but i can't get it right.
I have a data set with a date (DD-MM-YYYY) which for some reason has a Character format. I would like it to be translated into a date format (YYYY-MM-DD). I can get it to 'look' right by by separating and concatenating the parts, but, then i can't get the format right.

Use the input() function with an appropriate informat:
datevariable=input(textvariable,ddmmyy10.);

Related

DATE FORMATTING - COGNOS

I am using cognos version 10 and I need my dates to display in this format 'yyyy-mm' but it is showing dates like '2014-04' as '2014-4' so it is reading the dates out of order by producing '2014-11' first because it starts with a one. I need to add a zero to those double digit integers that way the months(specifically) will display in order.
here's an the code I've created in attempt:
_year( start_date ) ||'-'|| _month( start_date )
IF(_month(start_date) > 10)
THEN('0' +_month(start_date))
Short answer: Use yyyy-MM.
Your question lacks a lot of detail, so my response is based on considerable guess-work.
Are you asking about formatting, or do you want to transform the values? Formatting can be done without code. The code for your data item should be start_date.
Is this for a List column body? Where do you enter your format (yyyy-mm)? Are you using the Data format property?
In the Data format dialog, if you can't find another setting that will do what you want, you can enter a pattern into the Pattern property. If you look at the tips at the bottom of the Data format dialog, you'll notice that using yyyy-mm would give you a four digit year, a hyphen, and a two-digit minute. Perhaps you should try yyyy-MM. It works for me.
As for sorting: Even if you used yyyy-M for the pattern, 2014-04-22 (displayed as 2014-4), should sort before 2014-11-01 (displayed as 2014-11). The only reason the sort would be wrong is if it is using some other data besides the dates.

Date format in where clause match date format from table

I'm using previously written scripts that have the date format in the WHERE clause as 'DD-MMM-YY', however, in the table it is formatted as 'DD-MMM-YY HH.MM.SS.000000000 AM/PM. Does it matter that these formats do not match up? After comparing results it doesn't seem like any data is missing using non-matching formats. Wasn't sure if efficiency would be different if they matched or didn't match? Just let me know your thoughts and opinions. Thanks all!
Your where clause is fine. The table formatting is just a representation of the date. You can change this if it helps you view the results more easily (see link below), but it will make no difference to the efficiency of the query.
How can I set a custom date time format in Oracle SQL Developer?

Tableau cannot recognize timestamp field in my log file

I am using Tableau 9.3 to do a preliminary data analysis on one of my log file, the log file is like below:
"199.72.81.55",01/Jul/1995:00:00:01,/history/apollo/,200,6245,Sat
As you can see, there is a datetime for timestamp
In Tableau, initially it is recognized as a string like below:
That's fine, I want to make the field into datetime, and Tableau seems failed on it:
Why? How do I fix it?
Thank you very much.
UPDATED: after applying the formula suggested below, Tableau still cannot recognize the timestamp, here is the screenshot:
UPDATED AGAIN: after tested by nick, it is confirmed his first script is correct and working on his Tableau, why it fails on mine, I don't know, you are welcome to share any clue please, thank you.
Tableau implicit conversions are limited to more standard formats. You can still create a DATETIME field from your timestamp string using a calculated field with the following formula:
DATEPARSE('dd/MMM/yyyy:HH:mm:ss',[timestamp])
Using the above will transform a string like 01/Jul/1995:00:00:01 to a date and time of 7/1/1995 12:00:01 AM
Output using example data:
Sometimes the "date parse" function in Tableau doesn't quite do the job.
When this happens it is worth testing manual string manipulation with your timestamp field to put it into ISO-standard format and only then trying to convert it into a date. ISO format is yyyy-mm-dd hh:mm:ss (eg 2012-02-28 13:04:30). It is common to find that the original string has spurious characters or spaces that throw dateparse. But these are usually easy to manipulate away with suitable text manipulations. This can sometimes be longwinded, but it always works.
It turned out to be the region setting issue, it works after I switch it to USA

SAS proc sql - Convert ddmmmyyyy to week-yr and month-yr

I have imported some data into SAS from some Excel spreadsheets sent to me. When I view the output from the imported table, the date appears as "01APR2014" and maintains chronological order. When I view the column properties the type is "Date" and the length is 8. Both the format and informat are DATE9.
I need to be able to convert this date to week-year and month-year, but no matter what I try I always get Jan, 1960.
Using proc sql, I used the below to get the week-year,
"(put(datepart(a.fnlz_date),weeku3.))|| "-" ||(put(datepart(a.fnlz_date),year.)) as FNLZD_WK_YR,"
but all I got was "W00-1960". I've used the formula above successfully many times before with SAS datetime values.
For month-yr, using proc sql, I tried
"datepart(a.fnlz_date) as DT_FNLZD format=monyy.,"
but the only value returned is "JAN60".
I also tried using SUBSTR, but got an error saying it requires a character argument, so SAS must see it as a number at least.
My question; does anyone know a way to get the week-yr and/or month-yr from this format? If so, how? I'm not opposed to using a data step, but I haven't been able to get that to work either.
Thanks in advance for any help or insight provided.
datepart converts datetimes to dates. Not helpful here.
If you're just displaying this, then you have a few options, particularly for month. You can just change the format of the variable (This changes what's displayed, but not the underlying value; consider this a value label).
When you use this like this (again, it looks like you got most of the way there):
proc sql;
select datevar format=monyy5. from table;
quit;
Just don't include that datepart function call as that's not appropriate unless you have a datetime. (Date=# of days since 1/1/1960, Datetime = # of seconds since 1/1/1960:00:00:00).
That will display it with MONYY5. format, which would be MAY10 for May, 2010. You have some other format options, see the documentation on formats by category for more details.
I can't think of a Week format that matches what you want (there are week formats, like WEEKW., as you clearly found, but I don't know that they do exactly what you want. So, if you want to build one yourself, you can either build a custom picture format, or you can make a string.
Building a custom picture format isn't too hard; see the documentation on Picture formats or google SAS Date Picture Format.
proc format;
picture weekyear (default=8)
low-high = 'W%0U-%Y' (datatype=date) ;
quit;
Now you can use that as a normal format.
To get at the week/etc. to build values, you can also use functions week(), month(), etc., if that's easier.
Since the data was already in a date format, I only needed to drop the DATEPART function that only works with datetime values. So, for month-yr,
"a.fnlz_date as fnlz_mnth format=monyy.,"
gives me the results I'm looking for.
Cheers!

Formatting date like medium date SQLite

How to format date in SQLite to get like 10-Jan-2014. What formatting string I need.
I have seen this SQLite date formatting and other questions but did not find my answer.
The given link formats the date to only numeric like 2014-01-10 etc.
Any one know?
Month names are not supported in SQLite.
You can use a lookup table to make and get your desired format with month names directly from query.
You can also write your own formatting function in your programming language.