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using where clausule with Pervasive stored procedure in SQL

Posted on 2009-07-16
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Last Modified: 2012-05-07
I've been trying to implement a where function in my iReport using SQL

i call a procedure (pTest), but i am unable to add a where clausule! It is no option to change the procedure unfortunately.
Do i need to make temp tables? how do i insert the return of a procedure in a table?
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Question by:pr0fier
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Expert Comment

by:mirtheil
ID: 24870089
You have to drop and recreate the stored procedure in order to edit it.  
You return records from a stored procedure using the RETURNS clause or an OUT parameter.  I would suggest using the RETURNS clause as it returns the result as a resultset.  An example of a Stored Procedure with a RETURNS clause:
CREATE PROCEDURE DATERETURNPROC(IN :PDATE DATE)

RETURNS(

ID INTEGER,

Name CHAR(7),

Section CHAR(3),

Max_Size USMALLINT,

Start_Date DATE,

Start_Time TIME,

Finish_Time TIME,

Building_Name CHAR(25),

Room_Number UINTEGER,

Faculty_ID UBIGINT

);

BEGIN

SELECT ID, Name, Section, Max_Size, Start_Date, Start_Time, Finish_Time, Building_Name, Room_Number, Faculty_ID FROM CLASS WHERE START_DATE = :PDATE;

END;
 

And the calling for the stored procedure: 

CALL DATERETURNPROC('1995-06-05')

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Author Comment

by:pr0fier
ID: 24876492
as i stated above (perhaps unclear) i cannot change the current procedure because it is used for a lot of other applications.
 
Might it be a sollution to call the pTest procedure inside a (newly, temporary) procedure and run a new SELECT statement with the WHERE clausule over the returned (first, pTest) data?
 
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Accepted Solution

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mirtheil earned 125 total points
ID: 24886137
I don't think there's any way to do what you are thinking.  
What I would suggest would be to extract the actual SQL statement being issued in the Stored Procedure, modify it with the WHERE clause you are wanting and either execute it directly or create a secondary stored procedure that executes the SQL you want.  That would maintain the original Stored Procedure and allow you to restrict with the WHERE clause.
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Author Comment

by:pr0fier
ID: 24893073
agree with Mirtheil - this cannot be done with pervasive and ireport, i will try to make a resultset with this stored procedure and query that one :(
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