i have problem to convert last_day data from yyyymmdd to ddmmyyyy.
my field are integer.so i convert into char. then i try to format into to_date. When i try to convert to ddmmyyyy.There are show some error message.
This is my formula:
LAST_DAY(to_date(cast(IVL_SCHEDULER_PROC_DATE as char(8)),'yyyymmdd'))
Result
2016-08-18
Expected Result
18-08-2016
Anyone know about this?
You can use varchar_format as below;
SELECT VARCHAR_FORMAT(TO_DATE("IVL_SCHEDULER_PROC_DATE",'YYYY-MM-DD'),'MM-DD-YYYY') from db2inst1.test
18-08-2016
this is last_day function with varchar_format;
SELECT VARCHAR_FORMAT(LAST_DAY(TO_DATE("IVL_SCHEDULER_PROC_DATE",'YYYY-MM-DD')),'MM-DD-YYYY') from db2inst1.test
31-08-2016
Would this work?
select
varchar(mod(IVL_SCHEDULER_PROC_DATE,100)) || '-' ||
varchar(mod(IVL_SCHEDULER_PROC_DATE/100,100)) || '-' ||
varchar(IVL_SCHEDULER_PROC_DATE/10000)
Using a test value of 20151231 I get a '31-12-2015' result.
Related
SELECT ADD_MONTHS (TO_DATE(REPLACE('6/23/17','/', '-'), 'YYYY-MM-DD'), 1) "add months" FROM DUMMY;
If I execute just the replace portion I get the date in the correct format with '-' instead of '/'
but when I try to use both functions together it fails!
There is no need to replace: just use the relevant format specifier for your date string:
select add_months(to_date('6/23/17', 'mm/dd/yy'), 1) new_date
from dummy
I have a DECODE statement that works fine without putting to_char function in
Select DECODE(info.make_date, NULL,'SELECT ALL',info.make_date) as "listItemKey"
However I need info.make_date to be in a specific date format, so I use to_char
Select DECODE(info.make_date, NULL,'SELECT ALL',to_char(info.make_date, 'MM/DD/YYYY')) as "listItemKey"
But when I do this I get Unexpected '<' as my JSON instead of the data I need to return. Is there a reason I can't set my info.make_date to the format I need here?
I guess an alternative could be as below. Please try and let me know if this works.
select case when info.make_date is null then 'SELECT ALL'
else TO_CHAR (info.make_date, 'MM/DD/YYYY')
end as "listItemKey"
However i would say to cast the date before using to_char with existing DECODE:
TO_CHAR (to_date(info.make_date, 'MM/DD/YYYY'), 'MM/DD/YYYY' )
i am having problems with converting a varchar(yyyymmdd) to date(yyyymmdd).
i have a procedure with a parameter (pdate varchar2, yyyymmdd format) which needed to be converted to date type in yyyymmdd format as well.
so far i tried.
vdate date;
vdate := (to_date(SUBSTR(pdate,1,4)+SUBSTR(pdate,5,2)+SUBSTR(pdate,7,2), 'yyyymmdd'));
this threw a error of ORA-01840: input value not long enough for date format.
any help would be appreciated.
Just use a to_date
select to_date(MyDate, 'yyyymmdd')
from mytable
Test with:
select to_date('20170831','yyyymmdd')
from dual
Also, to concatenate in Oracle, use a double pipe ||
select 'Chicken'||'Food'
from dual
If pdate has other characters after yyyymmdd, and yyyymmdd is in the beginning of the whole text, you can just use
SELECT TO_DATE(SUBSTR(pdate,1,8), 'yyyymmdd')
FROM yourtable;
Example
SELECT TO_DATE(SUBSTR('20170831 10:30am',1,8), 'yyyymmdd')
FROM dual;
Otherwise, you can directly use TO_DATE() as suggested by most that replied
My DB contains a period(month) and a year - I am trying to convert it to a date. I don't care for the actual day of the month so I have just made it "1" (the 1st of the month).
In my code I had to convert the "13th" period to the 12th because of the 12 months of the year, so my decode did that part... Ultimately, I want it to return as a date. I have a concatenation to make it 'look' like a date, but not actually a date.
What i do with the data is query it and return it in Excel for further manipulation. When imported to Excel, it does not import as a date nor does it let me convert to a date format.
SELECT DIA_PROJECT_DETAIL.FY_DC || '/' ||
decode(DIA_PROJECT_DETAIL.PER_DC,1,1,2, 2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,12)||
'/01' as "Date"
FROM AMS.DIA_PROJECT_DETAIL DIA_PROJECT_DETAIL
There has to be an easier or more effective way to do this!
There is no much simpler way. DECODE is fine for converting month 13 to month 12, but you use it a bit too complicated. Then you shouldn't rely on session settings, but explicitly tell the DBMS the date format your assembled string represents. Use TO_DATE with the appropriate format.
select
to_date(fy_dc || to_char(decode(per_dc, 13, 12, per_dc), '00') || '01', 'yyyymmdd')
as "Date"
from ams.dia_project_detail dia_project_detail;
Just use least():
SELECT (DIA_PROJECT_DETAIL.FY_DC || '/' ||
LEAST(DIA_PROJECT_DETAIL.PER_DC, 12) ||
'/01'
) as "Date"
FROM AMS.DIA_PROJECT_DETAIL DIA_PROJECT_DETAIL;
I am running sqlite to select data between two ranges for a sales report. To select the data from between two dates I use the following statement:
SELECT * FROM test WHERE date BETWEEN "11/1/2011" AND "11/8/2011";
This statement grabs all the dates even those outside the criteria. The date format you see entered is in the same format that I get back. I'm not sure what's wrong.
SQLite requires dates to be in YYYY-MM-DD format. Since the data in your database and the string in your query isn't in that format, it is probably treating your "dates" as strings.
Change your data to that formats to use sqlite datetime formats.
YYYY-MM-DD
YYYY-MM-DD HH:MM
YYYY-MM-DD HH:MM:SS
YYYY-MM-DD HH:MM:SS.SSS
YYYY-MM-DDTHH:MM
YYYY-MM-DDTHH:MM:SS
YYYY-MM-DDTHH:MM:SS.SSS
HH:MM
HH:MM:SS
HH:MM:SS.SSS
now
DDDDDDDDDD
SELECT * FROM test WHERE date BETWEEN '2011-01-11' AND '2011-08-11'
One more way to select between dates in SQLite is to use the powerful strftime function:
SELECT * FROM test WHERE strftime('%Y-%m-%d', date) BETWEEN "11-01-2011" AND "11-08-2011"
These are equivalent according to https://sqlite.org/lang_datefunc.html:
date(...)
strftime('%Y-%m-%d', ...)
but if you want more choice, you have it.
SELECT *
FROM TableName
WHERE julianday(substr(date,7)||'-'||substr(date,4,2)||'-'||substr(date,1,2)) BETWEEN julianday('2011-01-11') AND julianday('2011-08-11')
Note that I use the format: dd/mm/yyyy.
If you use d/m/yyyy, Change in substr().
Or you can cast your string to Date format with date function. Even the date is stored as TEXT in the DB.
Like this (the most workable variant):
SELECT * FROM test WHERE date(date)
BETWEEN date('2011-01-11') AND date('2011-08-11')
SQLite does not have a concept of dates. It only knows them as text. When you do this in SQLite you're actually doing string comparisons. You can read more from the official documentation.
When two TEXT values are compared an appropriate collating sequence is used to determine the result.
Any numeric (i.e., not using words like 'May') format for dates that is padded and in order from biggest field to smallest field will work. "2021-05-07" (May 7th) comes before "2021-05-09" (May 9th). So if you use "yyyy-mm-dd" format then you'll be set. "yyyy/mm/dd" and "yyyymmdd" work just fine too. (For a better phrasing on "sortable" date formats check out RFC 3339 section 5.1.)
A reason to use "yyyy-mm-dd" format is because that's the format that SQLite's builtin date uses.
Special thanks to Jeff and vapcguy your interactivity is really encouraging.
Here is a more complex statement that is useful when the length between '/' is unknown::
SELECT * FROM tableName
WHERE julianday(
substr(substr(date, instr(date, '/')+1), instr(substr(date, instr(date, '/')+1), '/')+1)
||'-'||
case when length(
substr(date, instr(date, '/')+1, instr(substr(date, instr(date, '/')+1),'/')-1)
)=2
then
substr(date, instr(date, '/')+1, instr(substr(date, instr(date, '/')+1), '/')-1)
else
'0'||substr(date, instr(date, '/')+1, instr(substr(date, instr(date, '/')+1), '/')-1)
end
||'-'||
case when length(substr(date,1, instr(date, '/')-1 )) =2
then substr(date,1, instr(date, '/')-1 )
else
'0'||substr(date,1, instr(date, '/')-1 )
end
) BETWEEN julianday('2015-03-14') AND julianday('2015-03-16')
Put the variable in the Where Condition and parse both dates using 'BETWEEN':
SELECT * FROM emp_master
-> if you have date formate like dd/mm/yyyy simple then,
WHERE joined_date BETWEEN '01/03/2021' AND '01/09/2021';
-> and if you have date formate like yyyy/mm/dd then,
WHERE joined_date BETWEEN '2021/03/01' AND '2021/09/01';
☻♥ Done Keep Code.
Let's say you are preparing data for some report. Then the whole ordeal will look similar to this.
--add column with date in ISO 8601
ALTER TABLE sometable ADD COLUMN DateInISO8601;
--update the date from US date to ISO8601 date
UPDATE sometable
SET DateInISO8601 = substr([DateInUSformat],length([DateInUSformat])+1, -4)
|| '-' ||
substr('00' || [DateInUSformat],instr('00' || [DateInUSformat],'/'),-2)
|| '-' ||
substr('00' || rtrim(substr([DateInUSformat],instr([DateInUSformat],'/')+1,2),'/'),-2,2);
SELECT DateInISO8601
FROM sometable
WHERE DateInISO8601 BETWEEN '2022-02-02' AND '2022-02-22';
You can of course do all that on the fly, but if you have the choice -- don't. Use the ISO date by default and convert it on the way in and out to SQLite DB.