Of course if you are only interested in the actual day of the month, I
doubt I need to say it, but:

SELECT DAY( dtyd_lotm())
FROM systables
WHERE tabid=1;

Would return a single integer, being the last day of this month.

-----Original Message-----
From: Burton, Clifford [mailto:clifford_burton@simplus.com.au]
Sent: Wednesday, 10 May 2006 00:16
To: Prateek Jain
Cc: informix-list@iiug.org
Subject: RE: How to get the end value of month


I have a few SPs for handling date boundaries... of course they could be
improved upon I am sure... but more than welcome to change them to suit
your requirements, datatypes etc... they run on a naming convention of
AABB_CCDD where:

AA is the returned datatype: dt = datetime
BB is precision; yd = year to day, ys = year to second
CC is the position in the month, fo = First of, lo = Last of
DD is the relative month, lm = last month, tm=this month, nm=
next month.


CREATE PROCEDURE "informix".dtyd_fotm( ) RETURNING DATETIME YEAR TO DAY;

DEFINE v_dttm_yd DATETIME YEAR TO DAY;

BEGIN
ON EXCEPTION
RETURN NULL;
END EXCEPTION

SELECT EXTEND( CURRENT YEAR TO MONTH, YEAR TO DAY)
INTO v_dttm_yd
FROM systables
WHERE tabid = 1;

END

RETURN v_dttm_yd;

END PROCEDURE
DOCUMENT "_dt dtyd_fotm(void) /*v0.0.0*/";

CREATE PROCEDURE "informix".dtyd_lotm( ) RETURNING DATETIME YEAR TO DAY;

DEFINE v_dttm_yd DATETIME YEAR TO DAY;

BEGIN
ON EXCEPTION
RETURN NULL;
END EXCEPTION

SELECT EXTEND( CURRENT YEAR TO MONTH + 1 UNITS MONTH, YEAR TO
DAY) - 1 UNITS DAY
INTO v_dttm_yd
FROM systables
WHERE tabid = 1;

END

RETURN v_dttm_yd;

END PROCEDURE
DOCUMENT "_dt dtyd_lotm(void) /*v0.0.0*/";

CREATE PROCEDURE "informix".dtyd_fonm( ) RETURNING DATETIME YEAR TO DAY;

DEFINE v_dttm_yd DATETIME YEAR TO DAY;

BEGIN
ON EXCEPTION
RETURN NULL;
END EXCEPTION

SELECT EXTEND( CURRENT YEAR TO MONTH + 1 UNITS MONTH, YEAR TO
DAY)
INTO v_dttm_yd
FROM systables
WHERE tabid = 1;

END

RETURN v_dttm_yd;

END PROCEDURE
DOCUMENT "_dt dtyd_fonm(void) /*v0.0.0*/";

CREATE PROCEDURE "informix".dtyd_lonm( ) RETURNING DATETIME YEAR TO DAY;

DEFINE v_dttm_yd DATETIME YEAR TO DAY;

BEGIN
ON EXCEPTION
RETURN NULL;
END EXCEPTION

SELECT EXTEND( CURRENT YEAR TO MONTH + 2 UNITS MONTH, YEAR TO
DAY) - 1 UNITS DAY
INTO v_dttm_yd
FROM systables
WHERE tabid = 1;

END

RETURN v_dttm_yd;

END PROCEDURE
DOCUMENT "_dt dtyd_lonm(void) /*v0.0.0*/";

CREATE PROCEDURE "informix".dtyd_folm( ) RETURNING DATETIME YEAR TO DAY;

DEFINE v_dttm_yd DATETIME YEAR TO DAY;

BEGIN
ON EXCEPTION
RETURN NULL;
END EXCEPTION

SELECT EXTEND( CURRENT YEAR TO MONTH - 1 UNITS MONTH, YEAR TO
DAY)
INTO v_dttm_yd
FROM systables
WHERE tabid = 1;

END

RETURN v_dttm_yd;

END PROCEDURE
DOCUMENT "_dt dtyd_folm(void) /*v0.0.0*/";

CREATE PROCEDURE "informix".dtyd_lolm( ) RETURNING DATETIME YEAR TO DAY;

DEFINE v_dttm_yd DATETIME YEAR TO DAY;

BEGIN
ON EXCEPTION
RETURN NULL;
END EXCEPTION

SELECT EXTEND( CURRENT YEAR TO MONTH, YEAR TO DAY) - 1 UNITS DAY
INTO v_dttm_yd
FROM systables
WHERE tabid = 1;

END

RETURN v_dttm_yd;

END PROCEDURE
DOCUMENT "_dt dtyd_lolm(void) /*v0.0.0*/";

CREATE PROCEDURE "informix".dtys_fotm( ) RETURNING DATETIME YEAR TO
SECOND;

DEFINE v_dttm_ys DATETIME YEAR TO SECOND;

BEGIN
ON EXCEPTION
RETURN NULL;
END EXCEPTION

SELECT EXTEND( CURRENT YEAR TO MONTH, YEAR TO SECOND)
INTO v_dttm_ys
FROM systables
WHERE tabid = 1;

END

RETURN v_dttm_ys;

END PROCEDURE
DOCUMENT "_dt dtys_fotm(void) /*v0.0.0*/";

CREATE PROCEDURE "informix".dtys_lotm( ) RETURNING DATETIME YEAR TO
SECOND;

DEFINE v_dttm_ys DATETIME YEAR TO SECOND;

BEGIN
ON EXCEPTION
RETURN NULL;
END EXCEPTION

SELECT EXTEND( CURRENT YEAR TO MONTH + 1 UNITS MONTH, YEAR TO
SECOND) - 1 UNITS SECOND
INTO v_dttm_ys
FROM systables
WHERE tabid = 1;

END

RETURN v_dttm_ys;

END PROCEDURE
DOCUMENT "_dt dtys_lotm(void) /*v0.0.0*/";

CREATE PROCEDURE "informix".dtys_fonm( ) RETURNING DATETIME YEAR TO
SECOND;

DEFINE v_dttm_ys DATETIME YEAR TO SECOND;

BEGIN
ON EXCEPTION
RETURN NULL;
END EXCEPTION

SELECT EXTEND( CURRENT YEAR TO MONTH + 1 UNITS MONTH, YEAR TO
SECOND)
INTO v_dttm_ys
FROM systables
WHERE tabid = 1;

END

RETURN v_dttm_ys;

END PROCEDURE
DOCUMENT "_dt dtys_fonm(void) /*v0.0.0*/";

CREATE PROCEDURE "informix".dtys_lonm( ) RETURNING DATETIME YEAR TO
SECOND;

DEFINE v_dttm_ys DATETIME YEAR TO SECOND;

BEGIN
ON EXCEPTION
RETURN NULL;
END EXCEPTION

SELECT EXTEND( CURRENT YEAR TO MONTH + 2 UNITS MONTH, YEAR TO
SECOND) - 1 UNITS SECOND
INTO v_dttm_ys
FROM systables
WHERE tabid = 1;

END

RETURN v_dttm_ys;

END PROCEDURE
DOCUMENT "_dt dtys_lonm(void) /*v0.0.0*/";

CREATE PROCEDURE "informix".dtys_folm( ) RETURNING DATETIME YEAR TO
SECOND;

DEFINE v_dttm_ys DATETIME YEAR TO SECOND;

BEGIN
ON EXCEPTION
RETURN NULL;
END EXCEPTION

SELECT EXTEND( CURRENT YEAR TO MONTH - 1 UNITS MONTH, YEAR TO
SECOND)
INTO v_dttm_ys
FROM systables
WHERE tabid = 1;

END

RETURN v_dttm_ys;

END PROCEDURE
DOCUMENT "_dt dtys_folm(void) /*v0.0.0*/";

CREATE PROCEDURE "informix".dtys_lolm( ) RETURNING DATETIME YEAR TO
SECOND;

DEFINE v_dttm_ys DATETIME YEAR TO SECOND;

BEGIN
ON EXCEPTION
RETURN NULL;
END EXCEPTION

SELECT EXTEND( CURRENT YEAR TO MONTH, YEAR TO SECOND) - 1 UNITS
SECOND
INTO v_dttm_ys
FROM systables
WHERE tabid = 1;

END

RETURN v_dttm_ys;

END PROCEDURE
DOCUMENT "_dt dtys_lolm(void) /*v0.0.0*/";



I find them totally adequate,
HTH.


________________________________

From: Prateek Jain [mailtorateekvjain@gmail.com]
Sent: Tuesday, 9 May 2006 19:04
To: Obnoxio The Clown
Cc: informix-list@iiug.org
Subject: Re: How to get the end value of month


Thanks Obnoxio

But for the month of december its getting bombed i am using the Below
query for retrival as i have to retrive result through query only
I tried case statement but thats not working

select day(date('01' || '/' || month(current)+ 1 || '/'
||year(current))- 1 units day) from product

CASE statement query

select day(date('01' || '/' ||
CASE
WHEN month(current) = 12 THEN "11"
WHEN month(current) < 12 THEN (month(current) + 1)
END CASE || '/' ||year(current))- 1 units day) from product



On 5/9/06, Obnoxio The Clown <obnoxio@serendipita.com> wrote:


Prateek Jain said:
> Hi,
> I want to execute query for that i require end date of the
month,
>
> suppose if the month is April then it should return 30
> if March then in should return 31
> Is there any inbuilt function for that which give the end date
of the
> month

I don't think there is an inbuilt function, but you can work out
(1st day
of next month) - 1 easily enough.

--
Bye now,
Obnoxio

--
Regards,
Prateek Jain

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