/*****************************************************************************
*
* Filename         - $Workfile:   how_many_messages.sql  $
*
*                     Name              Date      Version     CR Number
* Author           - See revision history below.
* Last Update      - See revision history below.
*
* Project Name     - TAGTRAK(Oracle Database)
*
* Source Code
* Identifier       - 0/3/300/8010/112
*
* Design Spec
* Section          - 
*
* Contents         - Live Schema Stored Procedure
*
* Language         - Oracle SQL*Plus script
*
* Classification   - Commercial In Confidence
*
*          (c) Ultra Electronics Limited, 1997
*
*****************************************************************************/
/****************************************************************************
* @(#)$Workfile:   how_many_messages.sql  $  $Revision:   1.4  $
*
* Revision History
*
* Note that user tagtrak is many users. For these users the user
* name is entered as the last line in the change description.
*
* $Log:   /shared/pvcs/tagtarch/db_ora/db/source/live/procedures/how_many_messages.sqv  $
* 
*    Rev 1.4   02 Apr 1998 19:36:36   tagtrak
* OR:
* CR:
* REV:
* Initial Issue
* See label for concession
* 
*    Rev 1.3   15 Jan 1998 12:13:14   tagtrak
* OR: OR11101, TN13, TN15
* CR:
* REV:
* Phase 2C to Phase 3 upgrade plus code review actions and resolving some technical isses.
* 
*    Rev 1.2   24 Oct 1997 11:13:56   tagtrak
* Added PVCS header information
*
****************************************************************************/


PROMPT create or replace procedure how_many_messages

create or replace procedure how_many_messages (
	addr   in  char,
	mtype  in  char,
	no_msg out smallint
)
as

begin

	/*
	 * - If the mtype parameter = '-' (ie. its null) then
	 *   count the number of rows from the mail_indiv table where the
	 *   msg_address equals the addr parameter
	 * - ELSE
	 *   count the number of rows from the mail_indiv table where the
	 *   msg_address equals the addr parameter and the msg_type is
	 *   equal to the mtype parameter
	 */

	if (mtype = '-') then
		select
			count(*)
		into
			no_msg
		from
			mail_indiv
		where
			msg_address = addr;
	else
		select
			count(*)
		into
			no_msg
		from
			mail_indiv
		where
			msg_address = addr and
			msg_type    = mtype;
	end if;

end how_many_messages;
/
