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--**************************************
-- Name: calproc.sql
-- Description:Creates a 12 month calendar for any given year
-- By: Sergio Rueda
--
-- Inputs:year
--
-- Returns:12 month calendar
--
-- Assumes:nothing
--
--This code is copyrighted and has-- limited warranties.Please see http://www.Planet-Source-Code.com/vb/scripts/ShowCode.asp?txtCodeId=515&lngWId=5--for details.--**************************************
UNIX korn shell sample calling program:
##
# creates a calendar for a given year
#
# Input:Year
#
# Output: 12 month calendar
# stored in a file called CALENDAR.year
#
##
clear
echo " "
echo "Now creating file: calendar.$1"
echo " "
echo "
set serveroutput ON size 20000 format WORD_WRAPPED
execute srmcal($1);
" | sqlplus -s gemsprod/gemsprod > calendar.$1
==================================================
PL/SQL PROCEDURE TO CREATE THE CALENDAR
-- Written by Sergio Rueda.
-- 07/10/2002
--
-- Procedure to create a 12 month calendar for any given year.
--
--
create or replace procedure srmcal(ano in number) as
ldom number(02);
line varchar2(26);
mname varchar(10);
wday number(02);
begin
for mes in 1 .. 12 loop
select substr(last_day(to_date('01-'||TO_CHAR(mes)||'-'||TO_CHAR(ano),'DD-MM-YYYY')),1,2) into ldom from dual;
select to_char(to_date('01-'||TO_CHAR(mes)||'-'||TO_CHAR(ano),'DD-MM-YYYY'), 'Month') into mname from dual;
select to_number( to_char(to_date('01-'||TO_CHAR(mes)||'-'||TO_CHAR(ano),'DD-MM-YYYY'),'D')) into wday from dual;
--
--
dbms_output.put_line('.');
dbms_output.put_line('.');
dbms_output.put_line('. '||mname||' -- '|| ano);
dbms_output.put_line('.');
dbms_output.put_line('+ SUNMONTUEWEDTHUFRISAT +');
dbms_output.put_line('+------------------------------------------------+');
--
--
for dia in 1 .. wday - 1 loop
dbms_output.put( '|......');
end loop;
--
--
for dia in 1 .. ldom loop
if ( dia < 10) then
line := '|'||dia||' ';
else
line := '| '||dia||' ';
end if;
--
--
if mod(dia + (wday - 1),7) = 0 then
dbms_output.put(line || '|');
dbms_output.new_line;
dbms_output.put_line('+------+------+------+------+------+------+------+ ');
else
dbms_output.put(line);
end if;
end loop;
dbms_output.new_line;
dbms_output.put_line('+------+------+------+------+------+------+------+ ');
end loop;
end;
/
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4/11/2003 3:54:40 AM:
Dear, I need a script for subtracting a year. For example: I have data in date column say 2003/01/31, I want to subtract one year to get 2002/01/31.
Please teach me how to perform the above said question.
Thanking you in advance,
Raj (If this comment was disrespectful, please report it.)
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4/11/2003 3:54:40 AM: 
