Help with returning affected rows from a function

From: "Pradeepkumar, Pyatalo (IE10)" <Pradeepkumar(dot)Pyatalo(at)honeywell(dot)com>
To: pgsql-novice(at)postgresql(dot)org
Subject: Help with returning affected rows from a function
Date: 2004-06-18 06:42:11
Message-ID: 77ED2BF75D59D1439F90412CC5B109740DBA4B9B@ie10-sahara.hiso.honeywell.com
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Hi,

I m porting stored procedures from SQL to PGSQL. I dont know much about
PGSQL. I have problems in returning affected rows from the function. I could
not find much information about this. I would really appreciate if anyone
can help me out with this.

This is the procedure i m trying to execute...

CREATE FUNCTION PP_ReadParameter(INTEGER,VARCHAR) RETURNS VARCHAR AS '
DECLARE
paramId ALIAS FOR $1;
paramName ALIAS FOR $2;
use_t Attributes%ROWTYPE;
BEGIN
IF paramId IS NOT NULL THEN
SELECT
AttributeID AS ParameterID,
AttributeName AS ParameterName,
IsFixEnum,
IsExpandEnum
INTO use_t
FROM Attributes
WHERE AttributeID = paramID
ORDER BY AttributeID;
RETURN ''paramID successful'';
ELSE
IF paramName IS NOT NULL THEN
SELECT
AttributeID AS ParameterID,
AttributeName AS ParameterName,
IsFixEnum,
IsExpandEnum
INTO use_t
FROM Attributes
WHERE AttributeName = paramName
ORDER BY AttributeID;
RETURN ''paramName successful'';
ELSE
SELECT
AttributeID AS ParameterID,
AttributeName AS ParameterName,
IsFixEnum,
IsExpandEnum
INTO use_t
FROM Attributes
ORDER BY AttributeID;
RETURN ''paramID AND paramName not successful'';
END IF;
END IF;
END;
' LANGUAGE 'plpgsql';

The Attributes table structure is
Attributes(AttributeID LONG INTEGER,
AttributeName VARCHAR (50),
AttributeDataType VARCHAR (20),
AttributeDataSource VARCHAR (20),
AttributeDataSourceAttribute INTEGER,
IsFixEnum Bit,
IsExpandEnum Bit);

Just to chk the working of the function i m returning some text....actually
i want to return the rows that are affected and print them.

Thanks in advance.

> With Best Regards
> Pradeep Kumar P J
>
>

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