Mega Code Archive
How to return N (or top N) rows using InterBase
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Title: How to return "N" (or top N) rows using InterBase
Question: How does one limit the number of rows included in a query: e.g. how does one get the top (or bottom) 10 sales totals?
Answer:
Use a stored procedure that accepts the number of rows you want returned (this is a little more flexible than hard coding the number of rows).
create procedure p_get_n_records(iMaxRecords INTEGER)
returns ()
as
DECLARE VARIABLE iCount INTEGER;
BEGIN
iCount = 0;
FOR SELECT
FROM
INTO :
DO
BEGIN
iCount = iCount + 1;
IF (iCount SUSPEND;
ELSE
EXIT;
END
END
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