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You can also specify the language used for the day names separately if you want: select level as dow, To_char(trunc(sysdate ,'D') + level - 1, 'Day') as day and I need to adjust the calculation to correct for that: select level as dow, To_char(trunc(sysdate ,'D') + level, 'Day') as dayīut the same query run in the UK is a day off: alter session set nls_territory = 'UNITED KINGDOM' Select to_char(sysdate, 'D') as d, to_char(sysdate, 'Day') as day from dual The day of the week is affected by the NLS territory, so if I run this as if I'm in the US it works: alter session set nls_territory = 'AMERICA' VALUES(115,'Jane','Doe','example.Florin's answer is how I'd do it, but you need to be a little careful about NLS settings. The following statements create a table named empl_temp and populate it with employee details: To_char(n, '9.9EEEE') "Scientific Notation", The following statement converts the input numbers as per the format specified in the TO_CHAR function: Extract a value of a date time field e.g., YEAR, MONTH, DAY, from a date time value. Add a number of months (n) to a date and return the same day which is n of months away. To_char(n, '9.9EEEE') "Scientific Notation" This page provides you with the most commonly used Oracle date functions that help you handle date and time data easily and more effectively. The following statement displays the input numbers as per the format specified in the TO_CHAR function: The following statement extracts the datetime fields specified in the EXTRACT function from the input datetime expressions: To_char(d, 'iw-iyyy') "ISO Year and Week of Year", SELECT timestamp' 23:44:32' d FROM dual union The following statement converts date and timestamp values to the format specified in the TO_CHAR function: To_char(d, 'iw-iyyy') "ISO Year and Week of Year" To_char(d, 'dd-mm-yyyy') "Day-Month-Year", The following statement converts date values to the format specified in the TO_CHAR function: Using TO_CHAR to Format Dates and Numbers: Example The following example converts an interval literal into a text literal: SELECT TO_CHAR(INTERVAL '123-2' YEAR(3) TO MONTH) FROM DUAL TO_CHAR(tsltz_col, 'DD-MON-YYYY HH24:MI:SSxFF') AS tsltz_col TO_CHAR(tstz_col, 'DD-MON-YYYY HH24:MI:SSxFF TZH:TZM') AS tstz_col This allows the first week of the year to start on any day of the conventional week and end six days later the first week could run from Wednesday to Tuesday rather than from Sunday to Saturday. SELECT TO_CHAR(ts_col, 'DD-MON-YYYY HH24:MI:SSxFF') AS ts_col, Week Number 1 is: The first week of the year contains 1 January, the 1st Saturday and is comprised of days 1-7 of the year. TO_CHAR(tsltz_col, 'DD-MON-YYYY HH24:MI:SSxFF') AS tsltz SELECT TO_CHAR(ts_col, 'DD-MON-YYYY HH24:MI:SSxFF') AS ts_date,
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The result for a TIMESTAMP WITH LOCAL TIME ZONE column is sensitive to session time zone, whereas the results for the TIMESTAMP and TIMESTAMP WITH TIME ZONE columns are not sensitive to session time zone: The example shows the results of applying TO_CHAR to different TIMESTAMP data types. Tsltz_col TIMESTAMP WITH LOCAL TIME ZONE, The following example uses this table: CREATE TABLE date_tab ( If you omit 'nlsparam', then this function uses the default date language for your session. The 'nlsparam' argument specifies the language in which month and day names and abbreviations are returned. Refer to " Format Models" for information on datetime formats. Interval values are converted to the numeric representation of the interval literal. TIMESTAMP WITH TIME ZONE values are converted to values in the default timestamp with time zone format. TIMESTAMP and TIMESTAMP WITH LOCAL TIME ZONE values are converted to values in the default timestamp format. If you omit fmt, then date is converted to a VARCHAR2 value as follows:ĭATE values are converted to values in the default date format. TO_CHAR (datetime) converts a datetime or interval value of DATE, TIMESTAMP, TIMESTAMP WITH TIME ZONE, TIMESTAMP WITH LOCAL TIME ZONE, INTERVAL DAY TO SECOND, or INTERVAL YEAR TO MONTH data type to a value of VARCHAR2 data type in the format specified by the date format fmt.