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==Change the original date format in the TO_CHAR function==



<source lang="sql">

SQL>
SQL> -- Change the original date format in the TO_CHAR function
SQL>
SQL> SELECT TO_CHAR(LAST_DAY(TO_DATE("23SEP2006","ddMONyyyy")),"Month dd, yyyy") FROM dual;
TO_CHAR(LAST_DAY(T
------------------
September 30, 2006
SQL>

</source>

==Combine to_char and trunc with date value==



<source lang="sql">

SQL>
SQL> select to_char( trunc( sysdate, "HH" ), "DD-MON-YY HH24:MI:SS" ) "The Current Hour"
2 from dual
3 /
The Current Hour
------------------
16-JUN-08 17:00:00
1 row selected.
SQL>
SQL> --
</source>

==Converting a DATE to Another Language==



<source lang="sql">

SQL>
SQL> SELECT TO_CHAR(SYSDATE,"MONTH DD YY","NLS_DATE_LANGUAGE=german")
2 "German Date" from dual;
German Date
---------------
JUNI 16 08
1 row selected.
SQL>
SQL>
SQL>
SQL> --
</source>

==format parameter options available==



<source lang="sql">

Format Element Description Example
AD AD indicator TO_CHAR (SYSDATE,"YYYY AD")
AM Meridian indicator (am/pm) TO_CHAR (SYSDATE,"HH:MI:SS AM")
BC BC indicator (Before Common era/Before Christ) TO_CHAR (SYSDATE,"YYYY BC")
D Day of the week (from 1 to 7) TO_CHAR (SYSDATE,"D")
DAY Name of the day TO_CHAR (SYSDATE,"DAY")
DD Day of the month (from 1 to 31) TO_CHAR (SYSDATE,"DD")
DDD Day of the year (from 1 to 366) TO_CHAR (SYSDATE,"DDD")
DY Abbreviated name of the day TO_CHAR (SYSDATE,"DY")
HH Hour of the day (from 1 to 12) TO_CHAR (SYSDATE,"HH")
HH12 Hour of the day (from 1 to 12) TO_CHAR (SYSDATE,"HH12")
HH24 Hour of the day (from 0 to 23) TO_CHAR (SYSDATE,"HH24")
MI Minute (from 0 to 59) TO_CHAR (SYSDATE,"MI")
MM Month (from 01 to 12) TO_CHAR (SYSDATE,"MM")
MON Abbreviated name of the month TO_CHAR (SYSDATE,"MON")
MONTH Name of the month TO_CHAR (SYSDATE,"MONTH")
PM Meridian indicator (am/pm) TO_CHAR (SYSDATE,"PM")
RM Roman numeral month (from I to XII) TO_CHAR (SYSDATE,"RM")
RR Calculates full year given two digits TO_CHAR (SYSDATE,"RR")
SS Second (from 0 to 59) TO_CHAR (SYSDATE,"SS")

select
TO_CHAR(SYSDATE,"DD-DAY-MONTH-YEAR") LONG_DATE
FROM dual;
--
</source>

==Get the number of days in a month with to_char==



<source lang="sql">

SQL>
SQL> create table ord(
2 order_no integer primary key
3 ,cust_no integer
4 ,order_date date not null
5 ,total_order_price number(7,2)
6 ,deliver_date date
7 ,deliver_time varchar2(7)
8 ,payment_method varchar2(2)
9 ,emp_no number(3,0)
10 ,deliver_name varchar2(35)
11 ,gift_message varchar2(100)
12 );
Table created.
SQL>
SQL>
SQL> insert into ord(order_no,cust_no,order_date,total_order_price,deliver_date,deliver_time,payment_method,emp_no,deliver_name,gift_message)
2 values(1,1,"14-Feb-2002", 23.00, "14-Feb-2002", "12 noon", "CA",1, null, "Gift for wife");
1 row created.
SQL> insert into ord(order_no ,cust_no ,order_date ,total_order_price ,deliver_date ,deliver_time ,payment_method ,emp_no,deliver_name ,gift_message )
2 values(2,1,"14-Feb-2003", 510.98, "14-feb-2003", "5 pm", "NY",7, "Rose Ted", "Happy Valentines Day to Mother");
1 row created.
SQL> insert into ord(order_no ,cust_no ,order_date ,total_order_price ,deliver_date ,deliver_time,payment_method ,emp_no,deliver_name ,gift_message )
2 values(3, 2,"14-Feb-2004", 315.99, "14-feb-2004", "3 pm", "VS",2, "Ani Forest", "Happy Valentines Day to Father");
1 row created.
SQL> insert into ord(order_no ,cust_no ,order_date ,total_order_price ,deliver_date ,deliver_time,payment_method ,emp_no,deliver_name ,gift_message )
2 values(4, 2,"14-Feb-1999", 191.95, "14-feb-1999", "2 pm", "NJ",2, "O. John", "Happy Valentines Day");
1 row created.
SQL> insert into ord(order_no ,cust_no ,order_date ,total_order_price ,deliver_date ,deliver_time,payment_method ,emp_no,deliver_name ,gift_message )
2 values(5, 6,"4-mar-2002", 101.95, "5-mar-2002", "2:30 pm", "MO" , 2, "Cora", "Happy Birthday from John");
1 row created.
SQL> insert into ord(order_no ,cust_no ,order_date ,total_order_price ,deliver_date ,deliver_time,payment_method ,emp_no,deliver_name ,gift_message )
2 values(6, 9,"7-apr-2003", 221.95, "7-apr-2003", "3 pm", "MA", 2, "Sake Keith", "Happy Birthday from Joe" );
1 row created.
SQL> insert into ord(order_no ,cust_no ,order_date ,total_order_price ,deliver_date ,deliver_time,payment_method ,emp_no,deliver_name ,gift_message )
2 values(7, 9,"20-jun-2004", 315.95, "21-jun-2004", "12 noon", "BC", 2, "Jessica Li", "Happy Birthday from Jessica");
1 row created.
SQL> insert into ord(order_no ,cust_no ,order_date ,total_order_price ,deliver_date ,deliver_time,payment_method ,emp_no,deliver_name ,gift_message )
2 values (8, 12, "31-dec-1999", 135.95, "1-jan-2000", "12 noon", "DI", 3, "Larry", "Happy New Year from Lawrence");
1 row created.
SQL> insert into ord(order_no ,cust_no ,order_date ,total_order_price ,deliver_date ,deliver_time,payment_method ,emp_no,deliver_name ,gift_message )
2 values (9, 12, "26-dec-2003", 715.95, "2-jan-2004", "12 noon", "SK",7, "Did", "Happy Birthday from Nancy" );
1 row created.
SQL> insert into ord(order_no ,cust_no ,order_date ,total_order_price ,deliver_date ,deliver_time,payment_method ,emp_no,deliver_name ,gift_message )
2 values(10, 4, sysdate-1, 119.95, sysdate+2, "6:30 pm", "VG",2, "P. Jing", "Happy Valentines Day to Jason");
1 row created.
SQL> insert into ord(order_no ,cust_no ,order_date ,total_order_price ,deliver_date ,deliver_time,payment_method ,emp_no,deliver_name ,gift_message )
2 values(11, 2, sysdate, 310.00, sysdate+2, "3:30 pm", "DC",2, "C. Late", "Happy Birthday Day to Jack");
1 row created.
SQL> insert into ord(order_no ,cust_no ,order_date ,total_order_price ,deliver_date ,deliver_time,payment_method ,emp_no,deliver_name ,gift_message)
2 values(12, 7, sysdate-3, 121.95, sysdate-2, "1:30 pm", "AC",2, "W. Last", "Happy Birthday Day to You");
1 row created.
SQL> insert into ord(order_no ,cust_no ,order_date ,total_order_price ,deliver_date ,deliver_time,payment_method ,emp_no,deliver_name ,gift_message)
2 values(13, 7, sysdate, 211.95, sysdate-4, "4:30 pm", "CA",2, "J. Bond", "Thanks for hard working");
1 row created.
SQL>
SQL> select order_no, "Order placed on the " ||
2 to_char(order_date, "fmddth") || " day of "||
3 to_char(order_date, "fmMonth") || ", " ||
4 to_char(order_date, "yyyy") as "Order date"
5 from ord;
ORDER_NO Order date
---------- -----------------------------------------------
1 Order placed on the 14th day of February, 2002
2 Order placed on the 14th day of February, 2003
3 Order placed on the 14th day of February, 2004
4 Order placed on the 14th day of February, 1999
5 Order placed on the 4th day of March, 2002
6 Order placed on the 7th day of April, 2003
7 Order placed on the 20th day of June, 2004
8 Order placed on the 31st day of December, 1999
9 Order placed on the 26th day of December, 2003
10 Order placed on the 15th day of June, 2008
11 Order placed on the 16th day of June, 2008
12 Order placed on the 13th day of June, 2008
13 Order placed on the 16th day of June, 2008
13 rows selected.
SQL>
SQL> drop table ord;
Table dropped.
SQL> --
</source>

==INITCAP(RTRIM(TO_CHAR(SYSDATE, "MONTH")))==



<source lang="sql">

SQL>
SQL> SELECT INITCAP(RTRIM(TO_CHAR(SYSDATE, "MONTH"))) ||
2 " " ||
3 LOWER(TO_CHAR(SYSDATE, "DDTH"))
4 FROM DUAL;
INITCAP(RTRIM(
--------------
June 19th
SQL>
SQL>
</source>

==initcap(rtrim(to_char(sysdate, "MONTH"))) ||" " || initcap(to_char(sysdate, "DDSPTH"))==



<source lang="sql">

SQL>
SQL> select initcap(rtrim(to_char(sysdate, "MONTH"))) ||" " || initcap(to_char(sysdate, "DDSPTH"))
2 from dual;
INITCAP(RTRIM(TO_CHAR(SY
------------------------
June Nineteenth
SQL>
SQL>
</source>

==INITCAP(RTRIM(TO_CHAR(SYSDATE, "MONTH"))) ||" " ||TO_CHAR(SYSDATE, "DDTH")==



<source lang="sql">

SQL>
SQL> SELECT INITCAP(RTRIM(TO_CHAR(SYSDATE, "MONTH"))) ||" " ||TO_CHAR(SYSDATE, "DDTH")
2 FROM DUAL;
INITCAP(RTRIM(
--------------
June 19TH
</source>

==select to_char( sysdate, "DD/MM/YY HH24:MI:SS" ) "Right Now"==



<source lang="sql">

SQL>
SQL>
SQL> select to_char( sysdate, "DD/MM/YY HH24:MI:SS" ) "Right Now"
2 from dual
3 /
Right Now
-----------------
16/06/08 17:28:47
1 row selected.
SQL> --
</source>

==select to_char(sysdate,"DD-MON-YY HH24:MI:SS" ) "Right Now"==



<source lang="sql">

SQL>
SQL> select to_char(sysdate,"DD-MON-YY HH24:MI:SS" ) "Right Now"
2 from dual
3 /
Right Now
------------------
16-JUN-08 17:28:40
1 row selected.
SQL>
SQL>
SQL> --
</source>

==SELECT TO_CHAR(SYSDATE, "MM-DD-YYYY HH24:MI:SS") NOW==



<source lang="sql">

SQL>
SQL> SELECT TO_CHAR(SYSDATE, "MM-DD-YYYY HH24:MI:SS") NOW
2 FROM DUAL;
NOW
-------------------
06-19-2008 18:35:50
SQL>
</source>

==to_char(LAST_STOCK_DATE, "MON DD, YYYY HH24:MI")==



<source lang="sql">

SQL>
SQL> CREATE TABLE product (
2 product_name VARCHAR2(25),
3 product_price NUMBER(4,2),
4 quantity_on_hand NUMBER(5,0),
5 last_stock_date DATE);
Table created.
SQL>
SQL> INSERT INTO product VALUES ("Small Widget", 99, 1, "15-JAN-03");
1 row created.
SQL> INSERT INTO product VALUES ("Medium Widget", 75, 1000, "15-JAN-02");
1 row created.
SQL> INSERT INTO product VALUES ("Product Number", 50, 100, "15-JAN-03");
1 row created.
SQL> INSERT INTO product VALUES ("Round Church Station", 25, 10000, null);
1 row created.
SQL>
SQL>
SQL>
SQL>
SQL> select PRODUCT_NAME,
2 PRODUCT_PRICE,
3 QUANTITY_ON_HAND,
4 to_char(LAST_STOCK_DATE, "MON DD, YYYY HH24:MI") LAST_STOCK_DATE
5 from PRODUCT;
PRODUCT_NAME PRODUCT_PRICE QUANTITY_ON_HAND LAST_STOCK_DATE
------------------------- ------------- ---------------- ------------------
Small Widget 99 1 JAN 15, 2003 00:00
Medium Widget 75 1000 JAN 15, 2002 00:00
Product Number 50 100 JAN 15, 2003 00:00
Round Church Station 25 10000
SQL>
SQL>
SQL>
SQL> DROP TABLE product;
Table dropped.
SQL>
SQL>
</source>

==to_char(order_date, "hh24:mi:ss")==



<source lang="sql">

SQL>
SQL> create table ord(
2 order_no integer primary key
3 ,cust_no integer
4 ,order_date date not null
5 ,total_order_price number(7,2)
6 ,deliver_date date
7 ,deliver_time varchar2(7)
8 ,payment_method varchar2(2)
9 ,emp_no number(3,0)
10 ,deliver_name varchar2(35)
11 ,gift_message varchar2(100)
12 );
Table created.
SQL>
SQL>
SQL> insert into ord(order_no,cust_no,order_date,total_order_price,deliver_date,deliver_time,payment_method,emp_no,deliver_name,gift_message)
2 values(1,1,"14-Feb-2002", 23.00, "14-Feb-2002", "12 noon", "CA",1, null, "Gift for wife");
1 row created.
SQL> insert into ord(order_no ,cust_no ,order_date ,total_order_price ,deliver_date ,deliver_time ,payment_method ,emp_no,deliver_name ,gift_message )
2 values(2,1,"14-Feb-2003", 510.98, "14-feb-2003", "5 pm", "NY",7, "Rose Ted", "Happy Valentines Day to Mother");
1 row created.
SQL> insert into ord(order_no ,cust_no ,order_date ,total_order_price ,deliver_date ,deliver_time,payment_method ,emp_no,deliver_name ,gift_message )
2 values(3, 2,"14-Feb-2004", 315.99, "14-feb-2004", "3 pm", "VS",2, "Ani Forest", "Happy Valentines Day to Father");
1 row created.
SQL> insert into ord(order_no ,cust_no ,order_date ,total_order_price ,deliver_date ,deliver_time,payment_method ,emp_no,deliver_name ,gift_message )
2 values(4, 2,"14-Feb-1999", 191.95, "14-feb-1999", "2 pm", "NJ",2, "O. John", "Happy Valentines Day");
1 row created.
SQL> insert into ord(order_no ,cust_no ,order_date ,total_order_price ,deliver_date ,deliver_time,payment_method ,emp_no,deliver_name ,gift_message )
2 values(5, 6,"4-mar-2002", 101.95, "5-mar-2002", "2:30 pm", "MO" , 2, "Cora", "Happy Birthday from John");
1 row created.
SQL> insert into ord(order_no ,cust_no ,order_date ,total_order_price ,deliver_date ,deliver_time,payment_method ,emp_no,deliver_name ,gift_message )
2 values(6, 9,"7-apr-2003", 221.95, "7-apr-2003", "3 pm", "MA", 2, "Sake Keith", "Happy Birthday from Joe" );
1 row created.
SQL> insert into ord(order_no ,cust_no ,order_date ,total_order_price ,deliver_date ,deliver_time,payment_method ,emp_no,deliver_name ,gift_message )
2 values(7, 9,"20-jun-2004", 315.95, "21-jun-2004", "12 noon", "BC", 2, "Jessica Li", "Happy Birthday from Jessica");
1 row created.
SQL> insert into ord(order_no ,cust_no ,order_date ,total_order_price ,deliver_date ,deliver_time,payment_method ,emp_no,deliver_name ,gift_message )
2 values (8, 12, "31-dec-1999", 135.95, "1-jan-2000", "12 noon", "DI", 3, "Larry", "Happy New Year from Lawrence");
1 row created.
SQL> insert into ord(order_no ,cust_no ,order_date ,total_order_price ,deliver_date ,deliver_time,payment_method ,emp_no,deliver_name ,gift_message )
2 values (9, 12, "26-dec-2003", 715.95, "2-jan-2004", "12 noon", "SK",7, "Did", "Happy Birthday from Nancy" );
1 row created.
SQL> insert into ord(order_no ,cust_no ,order_date ,total_order_price ,deliver_date ,deliver_time,payment_method ,emp_no,deliver_name ,gift_message )
2 values(10, 4, sysdate-1, 119.95, sysdate+2, "6:30 pm", "VG",2, "P. Jing", "Happy Valentines Day to Jason");
1 row created.
SQL> insert into ord(order_no ,cust_no ,order_date ,total_order_price ,deliver_date ,deliver_time,payment_method ,emp_no,deliver_name ,gift_message )
2 values(11, 2, sysdate, 310.00, sysdate+2, "3:30 pm", "DC",2, "C. Late", "Happy Birthday Day to Jack");
1 row created.
SQL> insert into ord(order_no ,cust_no ,order_date ,total_order_price ,deliver_date ,deliver_time,payment_method ,emp_no,deliver_name ,gift_message)
2 values(12, 7, sysdate-3, 121.95, sysdate-2, "1:30 pm", "AC",2, "W. Last", "Happy Birthday Day to You");
1 row created.
SQL> insert into ord(order_no ,cust_no ,order_date ,total_order_price ,deliver_date ,deliver_time,payment_method ,emp_no,deliver_name ,gift_message)
2 values(13, 7, sysdate, 211.95, sysdate-4, "4:30 pm", "CA",2, "J. Bond", "Thanks for hard working");
1 row created.
SQL>
SQL>
SQL> select order_no, order_date from ord;
ORDER_NO ORDER_DATE
---------- --------------------
1 14-FEB-2002 00:00:00
2 14-FEB-2003 00:00:00
3 14-FEB-2004 00:00:00
4 14-FEB-1999 00:00:00
5 04-MAR-2002 00:00:00
6 07-APR-2003 00:00:00
7 20-JUN-2004 00:00:00
8 31-DEC-1999 00:00:00
9 26-DEC-2003 00:00:00
10 15-JUN-2008 18:01:18
11 16-JUN-2008 18:01:18
12 13-JUN-2008 18:01:18
13 16-JUN-2008 18:01:18
13 rows selected.
SQL>
SQL> select order_no, to_char(order_date, "hh24:mi:ss")
2 as "Order Time"
3 from ord;
ORDER_NO Order Ti
---------- --------
1 00:00:00
2 00:00:00
3 00:00:00
4 00:00:00
5 00:00:00
6 00:00:00
7 00:00:00
8 00:00:00
9 00:00:00
10 18:01:18
11 18:01:18
12 18:01:18
13 18:01:18
13 rows selected.
SQL>
SQL> drop table ord;
Table dropped.
SQL> --
</source>

==to_char( sysdate, "HH24:MI:SS" )==



<source lang="sql">

SQL>
SQL>
SQL>
SQL> select to_char( sysdate, "HH24:MI:SS" ) "DATE" from dual;
DATE
--------
20:44:28
SQL>
</source>

==TO_CHAR(SYSDATE, "MONTH DDSP")==



<source lang="sql">

SQL>
SQL>
SQL> SELECT TO_CHAR(SYSDATE, "MONTH DDSP")
2 FROM DUAL;
TO_CHAR(SYSDATE,"MONTH
----------------------
JUNE NINETEEN
SQL>
SQL>
</source>

==TO_CHAR(SYSDATE, "MONTH DDSPTH")==



<source lang="sql">

SQL>
SQL> SELECT TO_CHAR(SYSDATE, "MONTH DDSPTH")
2 FROM DUAL;
TO_CHAR(SYSDATE,"MONTHDD
------------------------
JUNE NINETEENTH
SQL>
SQL>
</source>

==TO_CHAR(SYSDATE, "MONTH DDTH")==



<source lang="sql">

SQL>
SQL> SELECT TO_CHAR(SYSDATE, "MONTH DDTH")
2 FROM DUAL;
TO_CHAR(SYSDAT
--------------
JUNE 19TH
SQL>
</source>

==Use string returned to_char from date type column in where clause==



<source lang="sql">

SQL>
SQL> create table ord(
2 order_no integer primary key
3 ,cust_no integer
4 ,order_date date not null
5 ,total_order_price number(7,2)
6 ,deliver_date date
7 ,deliver_time varchar2(7)
8 ,payment_method varchar2(2)
9 ,emp_no number(3,0)
10 ,deliver_name varchar2(35)
11 ,gift_message varchar2(100)
12 );
Table created.
SQL>
SQL>
SQL> insert into ord(order_no,cust_no,order_date,total_order_price,deliver_date,deliver_time,payment_method,emp_no,deliver_name,gift_message)
2 values(1,1,"14-Feb-2002", 23.00, "14-Feb-2002", "12 noon", "CA",1, null, "Gift for wife");
1 row created.
SQL> insert into ord(order_no ,cust_no ,order_date ,total_order_price ,deliver_date ,deliver_time ,payment_method ,emp_no,deliver_name ,gift_message )
2 values(2,1,"14-Feb-2003", 510.98, "14-feb-2003", "5 pm", "NY",7, "Rose Ted", "Happy Valentines Day to Mother");
1 row created.
SQL> insert into ord(order_no ,cust_no ,order_date ,total_order_price ,deliver_date ,deliver_time,payment_method ,emp_no,deliver_name ,gift_message )
2 values(3, 2,"14-Feb-2004", 315.99, "14-feb-2004", "3 pm", "VS",2, "Ani Forest", "Happy Valentines Day to Father");
1 row created.
SQL> insert into ord(order_no ,cust_no ,order_date ,total_order_price ,deliver_date ,deliver_time,payment_method ,emp_no,deliver_name ,gift_message )
2 values(4, 2,"14-Feb-1999", 191.95, "14-feb-1999", "2 pm", "NJ",2, "O. John", "Happy Valentines Day");
1 row created.
SQL> insert into ord(order_no ,cust_no ,order_date ,total_order_price ,deliver_date ,deliver_time,payment_method ,emp_no,deliver_name ,gift_message )
2 values(5, 6,"4-mar-2002", 101.95, "5-mar-2002", "2:30 pm", "MO" , 2, "Cora", "Happy Birthday from John");
1 row created.
SQL> insert into ord(order_no ,cust_no ,order_date ,total_order_price ,deliver_date ,deliver_time,payment_method ,emp_no,deliver_name ,gift_message )
2 values(6, 9,"7-apr-2003", 221.95, "7-apr-2003", "3 pm", "MA", 2, "Sake Keith", "Happy Birthday from Joe" );
1 row created.
SQL> insert into ord(order_no ,cust_no ,order_date ,total_order_price ,deliver_date ,deliver_time,payment_method ,emp_no,deliver_name ,gift_message )
2 values(7, 9,"20-jun-2004", 315.95, "21-jun-2004", "12 noon", "BC", 2, "Jessica Li", "Happy Birthday from Jessica");
1 row created.
SQL> insert into ord(order_no ,cust_no ,order_date ,total_order_price ,deliver_date ,deliver_time,payment_method ,emp_no,deliver_name ,gift_message )
2 values (8, 12, "31-dec-1999", 135.95, "1-jan-2000", "12 noon", "DI", 3, "Larry", "Happy New Year from Lawrence");
1 row created.
SQL> insert into ord(order_no ,cust_no ,order_date ,total_order_price ,deliver_date ,deliver_time,payment_method ,emp_no,deliver_name ,gift_message )
2 values (9, 12, "26-dec-2003", 715.95, "2-jan-2004", "12 noon", "SK",7, "Did", "Happy Birthday from Nancy" );
1 row created.
SQL> insert into ord(order_no ,cust_no ,order_date ,total_order_price ,deliver_date ,deliver_time,payment_method ,emp_no,deliver_name ,gift_message )
2 values(10, 4, sysdate-1, 119.95, sysdate+2, "6:30 pm", "VG",2, "P. Jing", "Happy Valentines Day to Jason");
1 row created.
SQL> insert into ord(order_no ,cust_no ,order_date ,total_order_price ,deliver_date ,deliver_time,payment_method ,emp_no,deliver_name ,gift_message )
2 values(11, 2, sysdate, 310.00, sysdate+2, "3:30 pm", "DC",2, "C. Late", "Happy Birthday Day to Jack");
1 row created.
SQL> insert into ord(order_no ,cust_no ,order_date ,total_order_price ,deliver_date ,deliver_time,payment_method ,emp_no,deliver_name ,gift_message)
2 values(12, 7, sysdate-3, 121.95, sysdate-2, "1:30 pm", "AC",2, "W. Last", "Happy Birthday Day to You");
1 row created.
SQL> insert into ord(order_no ,cust_no ,order_date ,total_order_price ,deliver_date ,deliver_time,payment_method ,emp_no,deliver_name ,gift_message)
2 values(13, 7, sysdate, 211.95, sysdate-4, "4:30 pm", "CA",2, "J. Bond", "Thanks for hard working");
1 row created.
SQL>
SQL>
SQL> select order_no, order_date
2 from ord
3 where trim(to_char(order_date, "Month")) = "February";
ORDER_NO ORDER_DATE
---------- --------------------
1 14-FEB-2002 00:00:00
2 14-FEB-2003 00:00:00
3 14-FEB-2004 00:00:00
4 14-FEB-1999 00:00:00
4 rows selected.
SQL>
SQL> drop table ord;
Table dropped.
SQL> --
</source>

==Use to_char to format a date type column==



<source lang="sql">

SQL>
SQL>
SQL> CREATE TABLE EMP
2 (EMPNO NUMBER(4) NOT NULL,
3 ENAME VARCHAR2(10),
4 JOB VARCHAR2(9),
5 MGR NUMBER(4),
6 HIREDATE DATE,
7 SAL NUMBER(7, 2),
8 COMM NUMBER(7, 2),
9 DEPTNO NUMBER(2)
10 );
Table created.
SQL>
SQL> INSERT INTO EMP VALUES (7369, "SMITH", "CLERK", 7902,TO_DATE("17-DEC-1980", "DD-MON-YYYY"), 800, NULL, 20);
1 row created.
SQL> INSERT INTO EMP VALUES (7499, "ALLEN", "SALESMAN", 7698,TO_DATE("20-FEB-1981", "DD-MON-YYYY"), 1600, 300, 30);
1 row created.
SQL> INSERT INTO EMP VALUES (7521, "WARD", "SALESMAN", 7698,TO_DATE("22-FEB-1981", "DD-MON-YYYY"), 1250, 500, 30);
1 row created.
SQL> INSERT INTO EMP VALUES (7566, "JONES", "MANAGER", 7839,TO_DATE("2-APR-1981", "DD-MON-YYYY"), 2975, NULL, 20);
1 row created.
SQL> INSERT INTO EMP VALUES (7654, "MARTIN", "SALESMAN", 7698,TO_DATE("28-SEP-1981", "DD-MON-YYYY"), 1250, 1400, 30);
1 row created.
SQL> INSERT INTO EMP VALUES (7698, "BLAKE", "MANAGER", 7839,TO_DATE("1-MAY-1981", "DD-MON-YYYY"), 2850, NULL, 30);
1 row created.
SQL> INSERT INTO EMP VALUES (7782, "CLARK", "MANAGER", 7839,TO_DATE("9-JUN-1981", "DD-MON-YYYY"), 2450, NULL, 10);
1 row created.
SQL> INSERT INTO EMP VALUES (7788, "SCOTT", "ANALYST", 7566,TO_DATE("09-DEC-1982", "DD-MON-YYYY"), 3000, NULL, 20);
1 row created.
SQL> INSERT INTO EMP VALUES (7839, "KING", "PRESIDENT", NULL,TO_DATE("17-NOV-1981", "DD-MON-YYYY"), 5000, NULL, 10);
1 row created.
SQL> INSERT INTO EMP VALUES (7844, "TURNER", "SALESMAN", 7698,TO_DATE("8-SEP-1981", "DD-MON-YYYY"), 1500, 0, 30);
1 row created.
SQL> INSERT INTO EMP VALUES (7876, "ADAMS", "CLERK", 7788,TO_DATE("12-JAN-1983", "DD-MON-YYYY"), 1100, NULL, 20);
1 row created.
SQL> INSERT INTO EMP VALUES (7900, "JAMES", "CLERK", 7698,TO_DATE("3-DEC-1981", "DD-MON-YYYY"), 950, NULL, 30);
1 row created.
SQL> INSERT INTO EMP VALUES (7902, "FORD", "ANALYST", 7566,TO_DATE("3-DEC-1981", "DD-MON-YYYY"), 3000, NULL, 20);
1 row created.
SQL> INSERT INTO EMP VALUES (7934, "MILLER", "CLERK", 7782,TO_DATE("23-JAN-1982", "DD-MON-YYYY"), 1300, NULL, 10);
1 row created.
SQL>
SQL> select * from emp;
EMPNO ENAME JOB MGR HIREDATE SAL COMM DEPTNO
---------- ---------- --------- ---------- --------- ---------- ---------- ----------
7369 SMITH CLERK 7902 17-DEC-80 800 20
7499 ALLEN SALESMAN 7698 20-FEB-81 1600 300 30
7521 WARD SALESMAN 7698 22-FEB-81 1250 500 30
7566 JONES MANAGER 7839 02-APR-81 2975 20
7654 MARTIN SALESMAN 7698 28-SEP-81 1250 1400 30
7698 BLAKE MANAGER 7839 01-MAY-81 2850 30
7782 CLARK MANAGER 7839 09-JUN-81 2450 10
7788 SCOTT ANALYST 7566 09-DEC-82 3000 20
7839 KING PRESIDENT 17-NOV-81 5000 10
7844 TURNER SALESMAN 7698 08-SEP-81 1500 0 30
7876 ADAMS CLERK 7788 12-JAN-83 1100 20
7900 JAMES CLERK 7698 03-DEC-81 950 30
7902 FORD ANALYST 7566 03-DEC-81 3000 20
7934 MILLER CLERK 7782 23-JAN-82 1300 10
14 rows selected.
SQL>
SQL> select to_char( hiredate, "Day Mon, YYYY" )
2 from emp
3 /
TO_CHAR(HIREDATE,"D
-------------------
Wednesday Dec, 1980
Friday Feb, 1981
Sunday Feb, 1981
Thursday Apr, 1981
Monday Sep, 1981
Friday May, 1981
Tuesday Jun, 1981
Thursday Dec, 1982
Tuesday Nov, 1981
Tuesday Sep, 1981
Wednesday Jan, 1983
Thursday Dec, 1981
Thursday Dec, 1981
Saturday Jan, 1982
14 rows selected.
SQL>
SQL> drop table emp;
Table dropped.
SQL> --
</source>

Oracle PL/SQL/Date Timezone/Date Format - История изменений

в 13:45, 26 мая 2010

Admin: 1 версия

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