Displaying Date and Time : DATE « PL SQL Data Types « Oracle PL/SQL Tutorial






  1. Oracle PL/SQL Tutorial
  2. PL SQL Data Types
  3. DATE
SQL>
SQL>
SQL> declare
  2      v_dt DATE :=sysdate;
  3      v_tx VARCHAR2(2000);
  4  begin
  5      v_tx:=to_char(v_dt,'mm/dd/yyyy');
  6      DBMS_OUTPUT.put_line(v_tx);
  7      v_tx:=to_char(v_dt,'hh24:mi');
  8      DBMS_OUTPUT.put_line(v_tx);
  9      v_tx:=to_char(v_dt);
 10      DBMS_OUTPUT.put_line(v_tx);
 11  end;
 12  /
06/09/2007
20:32
09-JUN-07

PL/SQL procedure successfully completed.

NLS stands for National Language Support, also known as Globalization Support.

NLS allows to you configure the database to conform to the requirements of countries that use different date and time formats.

These settings can be viewed in the NLS_SESSION_PARAMETERS and NLS_DATABASE_PARAMETERS dictionary views.




21.6.DATE
21.6.1.DATE
21.6.2.Define DATE type variable
21.6.3.Date literals
21.6.4.Displaying Date and Time
21.6.5.Using the DATE Format Mask
21.6.6.Using Format Masks mixed with user string
21.6.7.Assignment value to DATE type variable during declaration
21.6.8.Use SYSDATE to initialize an DATE type variable
21.6.9.Define DATE type variable, assign value TRUNC(SYSDATE)
21.6.10.Use FOR LOOP to loop through dates
21.6.11.Compare DATE type variable in IF statement
21.6.12.Compare DATE type variable after truncating
21.6.13.Combine TO_NUMBER and TO_DATE to get different parts of a Date
21.6.14.Performing Calculations on a Converted Date
21.6.15.Converting DATE to a Spelled-Out Character Format
21.6.16.Calculate the months between two dates
21.6.17.Use the date value back and forth
21.6.18.Remember That Dates Are Numbers
21.6.19.Check the last date that a date type variable can hold
21.6.20.Use the new EXTRACT function to grab individual year and month components.
21.6.21.ROUND function being applied to datetime values
21.6.22.TO_CHAR(C,'YYYY-MM-DD HH:MI:SS.FF AM TZH:TZM TZR TZD')