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How to compare date to format date on oracle


How to compare date to format date on oracle

By : Lv_V
Date : November 21 2020, 04:01 AM
With these it helps Echoing what was mentioned in the comments to your question, best practice would be to have an actual DATE type field instead of VARCHAR2, and if you needed specific display formats, store those in another field as a format pattern. That said, you can use REGEXP_LIKE to check the format using the patterns in the below example.
code :
with dateinfo as (
    select 1 as id, '2018-MARCH-10' as dtString from dual
    union all
    select 2 as id, '10 MARCH 2018' as dtString from dual ) 
select id, dtString, 
    case 
        when regexp_like(dtString, '^[0-9]{4}-.[a-zA-Z]{3,}-.[0-9]{1,2}$') then 'format1'
        when regexp_like(dtString, '^[0-9]{1,2} [a-zA-Z]{3,} [0-9]{4}$') then 'format2'
        else 'no format'
    end as dtFormat 
from dateinfo;


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I have a date in(string) in dd-mon-yyyy format and I want to compare this date with system date

I have a date in(string) in dd-mon-yyyy format and I want to compare this date with system date


By : user2365485
Date : March 29 2020, 07:55 AM
should help you out You can use the SystemDateFormat class to parse your String, for example
code :
final DateFormat fmt = new SimpleDateFormat("dd-MMM-yyyy");
final Date input = fmt.parse("12-OCT-2010");
if (input.before(new Date()) {
     // do something
}
Compare and filter data with date in MM/DD/YYYY format from current date using using new Date() while subtracting new Da

Compare and filter data with date in MM/DD/YYYY format from current date using using new Date() while subtracting new Da


By : Heena
Date : March 29 2020, 07:55 AM
may help you . Comparison between the current date and date in JSON data works. To compare the JSON date with the current date we could use javascript .getTime() method that returns the number of milliseconds between midnight of January 1, 1970 and the specified date. http://www.w3schools.com/jsref/jsref_getTime.asp
We could use the same thing by using .getTime() for the JSON data and get the required time in milliseconds and compare the two dates. Although the logic works for MM/DD/YYYY adding time offset to the date might be good idea to get the precise date
Back date getting printed while converting the date to oracle date format

Back date getting printed while converting the date to oracle date format


By : this_data
Date : March 29 2020, 07:55 AM
With these it helps Use getDate for day
var assignedOnDate = "12/13/2016"; var myJSDate = new Date(assignedOnDate); alert ("Printing Date: "+assignedOnDate); var monthNames = ["JAN", "FEB", "MAR", "APR", "MAY", "JUN", "JUL", "AUG", "SEP", "OCT", "NOV", "DEC" ]; var month = myJSDate.getMonth(); var year = myJSDate.getFullYear(); var day = myJSDate.getDate(); var fullStartOracleDate = day+"-"+monthNames[month]+"-"+year; alert ("Printing Full Date: "+fullStartOracleDate);
Oracle date format:varchar to date then char and then date

Oracle date format:varchar to date then char and then date


By : Mirza Nauman Umar
Date : March 29 2020, 07:55 AM
hop of those help? In Oracle, DATE values do not have a particular format such as DD-MON-YYYY OR DD/MM/RR or etc. All DATE fields contain sub-fields for the century, year, month, day, hours, minutes, and seconds, meaning that all DATE fields in Oracle are really timestamp values with a precision of one second. Oracle will by default convert a DATE to a character string using the DD-MON-YY format, but this is just default format - it does not mean that the date is stored in DD-MON-RR format.
Compare time in a non-date format in Oracle

Compare time in a non-date format in Oracle


By : user3059558
Date : March 29 2020, 07:55 AM
To fix the issue you can do Your times should be treated as intervals so that they can be manipulated as normal data:
code :
WITH cteBase_scoring AS (SELECT INTERVAL '10:00.00' MINUTE TO SECOND AS TIME, 100 AS SCORE FROM DUAL UNION ALL
                         SELECT INTERVAL '20:00.00' MINUTE TO SECOND, 85 FROM DUAL UNION ALL
                         SELECT INTERVAL '30:00.00' MINUTE TO SECOND, 70 FROM DUAL UNION ALL
                         SELECT INTERVAL '40:00.00' MINUTE TO SECOND, 55 FROM DUAL UNION ALL
                         SELECT INTERVAL '50:00.00' MINUTE TO SECOND, 40 FROM DUAL UNION ALL
                         SELECT INTERVAL '01:00:00.00' HOUR TO SECOND, 25 FROM DUAL),
     cteScoring AS (SELECT LAG(bs.TIME, 1, INTERVAL '00:00' MINUTE TO SECOND)
                             OVER (ORDER BY bs.TIME) AS FROM_TIME,
                           bs.TIME AS TO_TIME,
                           bs.SCORE
                      FROM cteBase_scoring bs),
     cteTimes AS (SELECT INTERVAL '01:42:25.76' HOUR TO SECOND AS TIME FROM DUAL UNION ALL
                  SELECT INTERVAL '27:54.92' MINUTE TO SECOND FROM DUAL UNION ALL
                  SELECT INTERVAL '56:31.55' MINUTE TO SECOND FROM DUAL UNION ALL
                  SELECT INTERVAL '02:49.38' MINUTE TO SECOND FROM DUAL)
SELECT t.TIME, NVL(s.SCORE, 0) AS SCORE
  FROM cteTimes t
  LEFT OUTER JOIN cteScoring s 
    ON t.TIME > s.FROM_TIME AND
       t.TIME <= s.TO_TIME;
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