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

Oracle PL/SQL Tutorial

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Oracle PL/SQL Tutorial » PL SQL Data Types » DATE

21. 6. 4. Displaying Date and Time


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')

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